I/O Modules and Hardware
I/O Adapter Modules
|
An I/O adapter module in a chassis with I/O modules interfaces the I/O modules with the I/O link for communication with a scanner port for a processor at another location. I/O adapter modules for 1771 I/O are available for ControlNet, Universal Remote I/O, and Extended Local I/O links.
For 1771 I/O to be controlled by a processor other than one in the same chassis with the I/O modules, an I/O adapter module must be placed in left-most slot of the chassis containing the I/O modules.
The 1771-ASB is compatible with an I/O link with 32 I/O-adapter devices and either 82W or 150W termination.
Specifications
| Cat. No. | 1771-ACN15 | 1771-ACNR15 | 1771-ALX | 1771-ASB |
| Description | Single-port non-redundant-media and redundant-media ControlNet communication interface module. Only the 1771-ACNR15 can be used with the ControlNet PLC-5 backup system (1785-CHBM). | Extended local I/O adapter module | Universal Remote I/O adapter module | |
| Port | ControlNet I/O adapter port | Extended Local I/O adapter port | Universal Remote I/O adapter port | |
| Communication Rate | 5 Mbit/s | not comparable (parallel) | •57.6 kbit/s •115 kbit/s •230 kbit/s |
|
| Connectors | •1 BNC connector for non-redundant media operation •1 NAP (RJ-45 8-pin with shield) |
•2 BNC connectors for redundant media operation •1 NAP (RJ-45 8-pin with shield) |
D-shell connector | 1771-WB wiring arm |
| Cable | Quad-shield RG-6 coaxial cable | •1771-CX1 (1 m) •1771-CX2 (2 m ) •1771-CX5 (5 m) |
Belden 9463 | |
| Backplane Current Load @ 5V | 1.0 A | 1.2 A | 1.0 A | |
| Weight | 1.0 kg (2.1 lb) | 1.0 kg (2.2 lb) | 0.6 kg (1.2 lb) | 0.9 kg (1.9 lb) |
| Temperature, operating | 0…60 °C (32…140 °F) | |||
| Temperature, nonoperating | -40…85 °C (-40…185 °F) | |||
| Relative Humidity | 5…95% (without condensation) | |||
| Certifications¬ | CSA Class I Div 2 Hazardous, FM Class I Div 2 Hazardous, UL, CE | |||
| ¬ When product is marked. See the Product Certification link at http://www.ab.com for Declarations of Conformity, Certificates, and other certification details. | ||||
I/O Chassis
|
The PLC-5 / 1771 system is a modular system that requires a 1771 I/O chassis to contain the various modules. Chassis are available in sizes of 1, 2, 4, 8, 12, and 16 module slots.
The backplane provides a communication path between the I/O modules and either the processor module or the I/O adapter module.
1771 I/O Chassis Specifications
| Cat. No. | Description | No. I/O Slots |
Dimensions (HxWxD), Approx. | Weight | Type of Mounting |
| 1771-A1B | I/O chassis for 1771 I/O modules | 4 slots | 315 x 229 x 193 mm (12.4 x 9.0 x 7.6 in) | 3.6 kg (8.0 lb) | Back-panel mount |
| 1771-A2B | I/O chassis for 1771 I/O modules | 8 slots | 315 x 356 x 193 mm (12.4 x 14.0 x 7.6 in) | 4.7 kg (10.3 lb) | Back-panel mount |
| 1771-A3B | I/O chassis for 1771 I/O modules | 12 slots | 339 x 484 x 217 mm (13.53 x 19.0 x 8.5 in) | 8.7 kg (19.1 lb) | 19-inch rack mount or back-panel mount |
| 1771-A3B1 | I/O chassis for 1771 I/O modules | 12 slots | 315 x 483 x 193 mm (12.4 x 19.0 x 7.6 in) | 5.7 kg (12.6 lb) | Back-panel mount |
| 1771-A4B | I/O chassis for 1771 I/O modules | 16 slots | 315 x 610 x 193 mm (12.4 x 24.0 x 7.6 in) | 6.7 kg (14.8 lb) | Back-panel mount |
| 1771-PSC | Power-supply chassis (for connecting power directly or through a cable to an I/O chassis). Slots for installation of power supplies and modules requiring only power from the backplane. | 4 slots | 311 x 203 x 180 mm (12.23 x 8.00 x 7.1 in) | 1.9 kg (4.1 lb) | Back-panel mount |
| 1771-AM1 | I/O chassis with integral remote I/O adapter and power supply (3A available for I/O modules) | 1 slot | 298 x 70 x 187 mm (11.75 x 2.75 x 7.375 in) | 1.4 kg (3.0 lb) | Back-panel mount |
| 1771-AM2 | I/O chassis with integral remote I/O adapter and power supply (3A available for I/O modules) | 2 slots | 298 x 130 x 187 mm (11.75 x 5.125 x 7.375 in) | 2.3 kg (5.0 lb) | Back-panel mount |
| Certifications¬ | CSA Class I Div 2 Hazardous, FM Class I Div 2 Hazardous, UL, CE | ||||
| ¬ When product is marked. See the Product Certification link at http://www.ab.com for Declarations of Conformity, Certificates, and other certification details. | |||||
1771 I/O Module Overview
The 1771 I/O product line provides a full range of digital and analog I/O for a wide variety of applications in a modular assembly — including intelligent I/O modules.
- Digital I/O modules have digital I/O circuits that interface to on/off sensors such as pushbutton and limit switches; and on/off actuators such as motor starters, pilot lights, and annunciators. The outputs are directly controlled by the state of corresponding bits in the PLC data table, while the inputs directly control the state of corresponding bits in the PLC data table.
- Analog I/O modules perform the required A/D and D/A conversions to directly interface analog signals to PLC data table values using up to 16-bit resolution. Analog I/O can be user-configured for the desired fault-response state in the event that I/O communication is disrupted. This feature provides a safe reaction/response in case of a fault, limits the extent of faults, and provides a predictable fault response.
- N-series Analog I/O modules provide high (1000V) isolation between channels. Their I/O connection points are on Remote Termination Panels (RTPs) which reduce installation costs and allows replacement without disturbing current loop. RTPs have optional fuses and resistors for user-defined termination flexibility.
- Specialty I/O modules are available for further control system enhancement. These modules include process control modules, positioning modules, and specialized modules such as the high-speed logic controller module and the configurable flowmeter module. Each provides a unique easy-to-use interface between the I/O (digital and/or analog) circuits and the PLC processor.
This modular hardware design uses cost- and space-effective means to add I/O to a control system. These modules can be used:
- In a processor-resident local I/O chassis of a PLC-5 controller
- With a 1771-ALX I/O adapter on an Extended Local I/O link with the processor
- At a location remote from the processor, in an I/O chassis with a 1771-ACN15 or -ACNR15 I/O adapter on a ControlNet link with the processor
- At a location remote from the processor, in an I/O chassis with a 1771-ASB I/O adapter on a Universal Remote I/O link with the processor
Benefits
- No need to disconnect wiring to replace module; for some modules, wiring arms are shipped with I/O modules; the others use remote termination panels; for N-series modules, order remote termination panels separately.
- Solid-state outputs are fused for module-circuit protection.
- Modules available in different densities (32 I/O per module max) for greater flexibility and cost savings.
- Isolated inputs and outputs can be used in applications, such as motor control centers where individual control transformers are used.
- 1771 I/O modules include optical coupling and filter circuitry for signal noise reduction.
- For troubleshooting, status indicators are provided on the front of modules to input or output and fuse blown status.
- Digital I/O modules cover electrical ranges from 5…276V AC or DC; relay contact output modules are available for ranges from 0…276V AC or 0…175V DC.
- A range of analog signal levels including standard analog inputs and outputs; and direct thermocouple and RTD temperature inputs.
- Analog module software-selectable features include digital filtering for noisy transmitters and environments and range selection per I/O for added flexibility.
- Analog module comprehensive self-diagnostic tests: over/under range, high/low rate-of-change alarming, open input/open loop detection, on-board error checking.
- Scaling to engineering units makes incoming analog signals easier to work with.
- User-configurable output response (min, max, mid-range or last value) for safe reaction to an analog module fault.
- An analog module status block provides information to the processor for alarming and troubleshooting.
- Current inputs with individual embedded 24V DC loop power for analog transmitters.
- A 1771 intelligent I/O module may perform the function of three modules of a smaller physical size.
Specifications
| Temperature, operating | 0…60 °C (32…140 °F) |
| Temperature, nonoperating | -40…85 °C (-40…185 °F) |
| Relative Humidity | 5…95% (without condensation) |
| Shock, operating | 30 g peak acceleration for 11 ±1 ms duration |
| Shock, nonoperating | 50 g peak acceleration for 11 ±1 ms duration |
| Vibration | 0.015 in. peak-to-peak displacement 2.5 g peak (max.) acceleration |
| Vibration, Non-Operating | 0.030 in. peak-to-peak displacement 5.0 g peak (max.) acceleration |
Digital I/O Modules
1771 Digital AC/DC Input Modules
| Cat. No. | Number of Inputs | Voltage Category | Operating Voltage | Signal Delay (typical) |
Off-State Current, Max . |
Wiring Arm | Backplane Current Load | Applications¬ |
| 1771-IN | 8 | 24V AC/DC | 12…28V AC | on = 18 (±10) ms off = 18 (±10) ms |
2.8 mA | 1771-WA | 80 mA | General-purpose 24V AC inputs |
| 1771-IND | 16 | 16…30V AC 9…30V DC |
on AC = 35 (±10) ms off AC = 45 (±15) ms on DC = 10 ms off DC = 50 ms |
1.5 mA AC 0.6 mA DC |
1771-WH | 250 mA | General-purpose 24V AC/DC inputs | |
| 1771-ID | 6 | 120V AC/DC | 92…138V AC 92…138V DC |
on/off AC = 24 (±10) ms on DC = 10 (±4) ms off DC = 20 (±9) ms |
1.7 mA | 1771-WD | 74 mA | Isolated-circuit multi-phase applications |
| 1771-IA | 8 | 87…138V AC 97…138V DC |
2.8 mA | 1771-WA | 75 mA | General-purpose 120V AC/DC proximity switches | ||
| 1771-IAD | 16 | 79…138V AC 79…138V DC |
on AC = 5 (±3) ms on DC is selectable: 3 (±0.1)ms or 10(±1)ms off AC /dc=25 (±5) ms |
3.0 mA AC 0.8 mA DC |
1771-WH | 195 mA | General-purpose 120V AC/DC inputs | |
| 1771-IAN | 32 (4 sets of 8) | 85…138V AC | on = 10 (±7) ms off = 20 (±15) ms |
2.3 mA @ 60 Hz 1.9 mA @ 50 Hz |
1771-WN | 280 mA | General-purpose 120V AC inputs | |
| 1771-ID16 | 16 | 77…138V AC 105…138V DC |
on = 1 ms off AC = 9 or 18 ms off DC = 9 ms |
4.0 mA AC 0.8 mA DC |
1771-WN | 75 mA | General-purpose 120V AC/DC isolated-circuit multi-phase applications | |
| 1771-ID01 | 6 | 220V AC/DC | 184…276V AC 18…276V DC |
on/off AC = 20 (±10) ms on DC = 10 (±4) ms off DC = 20 (±9) ms |
0.7 mA AC 1.0 mA DC |
1771-WD | 74 mA | Isolated-circuit multiple-phase applications |
| 1771-IM | 8 | 184…276V AC 184…276V DC |
on AC = 20 (±6) ms on DC = 10 (±4) ms off AC = 20 (±6) ms off DC = 20 (±9) ms |
1.0 mA | 1771-WA | 75 mA | General-purpose 220V AC/DC inputs | |
| 1771-IMD | 16 | 184…250V AC 166…230V DC |
on = 15 (±8) ms off = 172 (±56) ms |
13.0 mA AC 0.25 mA DC |
1771-WH | 250 mA | ||
| 1771-sc-IMI16T | 16 | 159…264V AC 184…276V DC |
on AC = 11 (±6) ms on DC = 3 (±2) ms off AC = 29 (±8) ms off DC = 30 (±7) ms |
2.8 mA AC 0.35 mA DC |
1771-WN | 100 mA | Isolated-circuit multiple-phase applications | |
| ¬ Each module occupies one slot. T These products are sold and supported by Spectrum Controls, Inc., Bellevue, WA and can be purchased through an Allen-Bradley distributor. |
||||||||
1771 Digital DC Input Modules
| Cat. No. | Number of Inputs | Voltage Category | Operating Voltage | Signal Delay (typical) | Off-State Current, Max. | Wiring Arm |
Backplane Current Load | Applications¬ | |
| 1771-IG | 8 | 5V DC | TTL | TTL-compatible 5.0…5.3V |
<1 ms | — | 1771-WC | 122 mA | TTL interfaces, BCD interfaces encoders (A-B Bulletin 854C) |
| 1771-IGD | 16 | <1 ms | — | 1771-WH | 130 mA | ||||
| 1771-IB | 8 | 10…60V DC | Sink (Source Load) | 10…27V | on = 12 (±7) ms off = 20 (±7) ms |
3.0 mA | 1771-WA | 74 mA | Compatible with source switching devices, including: •dry-contact switches •electro-mechanical transmitters •panel switching devices, such as pushbutton and selector switches |
| 1771-IC | 8 | 42…56V | on = 15 (±7) ms off = 20 (±7) ms |
3.7 mA | 1771-WA | 74 mA | |||
| 1771-IH | 8 | 24…50V | on/off = 15 (±7) ms | 0.7 mA | 1771-WA | 74 mA | |||
| 1771-IT | 8 | 12…27V | on = 0.6 (±0.2) ms off = 0.6 (±0.2) ms |
1.3 mA | 1771-WA | 74 mA | |||
| 1771-IBD | 16 | 10…30V | on = 1.3 (±0.1) ms off = 1.3 (±0.1) ms |
2.0 mA | 1771-WH | 130 mA | |||
| 1771-ICD | 16 | 20…60V | on = 6 (±2) ms off = 20 (±1) ms |
1.2 mA | 1771-WH | 250 mA | |||
| 1771-IBN | 32 (4 sets of 8) | 10…30V | on = 6 (±2) ms (digital filter) off = 6 (±2) ms |
1.7 mA | 1771-WN | 280 mA | |||
| 1771-IV | 8 | Source (Sink Load) | 12…24V | on/off = 15 (±7) ms | 3.0 mA | 1771-WA | 74 mA | Sink DC input signal termination | |
| 1771-IVN | 32 (4 sets of 8) | 10…30V | on = 6 (±2) ms (digital filter) off = 6 (±2) ms |
1.7 mA | 1771-WN | 280 mA | |||
| 1771-IQ | 8 | Sink or Source Load | 5…30V | fast,on/off <1 ms slow,on/off = 12 ms (-7, +14 ms) |
— | 1771-WC | 150 mA | Source or sink input signal termination time-critical applications | |
| 1771-IQ16 | 16 | 10…32V | 4 filter times 0, 1, 9, and 18 ms |
2.0 mA | 1771-WN | 100 mA | Source or sink input signal termination time-critical applications, isolated circuits | ||
| 1771-DW | 7 | Sink (Source Load) | 15…27V | contact status •on/off = 33 (±6) ms wire-fault status •on/off = 3 (±2) ms |
1.0 mA | 1771-WA | 300 mA | 24V DC pushbutton, limit, float, and selector switches Line monitoring current @ 24V DC •6 mA contact open •20 mA contact closed •<4 mA for detection of wire fault |
|
| Description — This module provides 7 digital inputs and detects whether any wire between the switching device and the module or power supply is either short-circuited to ground or open-circuited. Communication is bidirectional. With an output image bit, you select what the module will write directly into the input image byte — the state of each input or the fault status of each input. | |||||||||
| ¬ Each module occupies one slot. | |||||||||
1771 Digital AC Output Modules
| Cat. No. | Voltage Category |
Operating Voltage | Continuous Current Per Output, Max. |
Current Per Module, Max. | Number of Outputs | Wiring Arm |
Backplane Current Load |
Applications¬ |
| 1771-ON | 24V AC | 20…30V | 1.5 A | 6 A | 8 | 1771-WA | 225 mA | Relay coil driver Low voltage inductive loads |
| 1771-OP | 120V AC | 92…138V | 2 A | 6 A | 4 | 1771-WA | 350 mA | Each output is protected by opening its fuse if its triAC fails shorted |
| 1771-OD | 92…138V | 2 A | 6 A | 6 | 1771-WD | 225 mA | Isolated circuits Multiple solenoids and transformers |
|
| 1771-ODD | 85…138V | 2 A | 8 A | 16 | 1771-WN | 420 mA | Isolated circuits with individual fuse indication Multiple solenoids and transformers |
|
| 1771-OD16 | 74…138V | 2 A | 8 A | 16 | 1771-WN | 200 mA | Isolated circuits, multiple solenoids and transformers | |
| 1771-ODZ | 92…138V | 2 A | 6 A | 8 (4 sets of 2) | 1771-WD | 350 mA | Isolated circuit pairs; replaces 1771-OZ and -OA with resistor, 1771-IA interlocks | |
| 1771-OA | 92…138V | 1.5 A | 6 A | 8 | 1771-WA | 210 mA | General purpose 120V AC | |
| 1771-OAD | 10…138V | 2 A | 8 A | 16 | 1771-WHT | 295 mA | For each output, a blown fuse is reported in the input image table | |
| 1771-OR | 220V AC | 184…276V | 2 A | 6 A | 6 | 1771-WD | 255 mA | Isolated circuits |
| 1771-OM | 184…250V | 2 A | 6 A | 8 | 1771-WA | 225 mA | General purpose 220V AC |
|
| 1771-OMD | 184…250V | 2 A | 8 A | 16 | 1771-WHT | 700 mA | ||
| 1771-OAN | 120/220 AC | 80…265V | 1.0 A @ 30 °C 0.3 A @ 60 °C |
8 A | 32 (4 sets of 8) | 1771-WN | 800 mA | General purpose 120/220V AC |
| 1771-sc-OMI16‡ | 74…276V | 2 A | 8 A | 16 | 1771-WN | 330 mA | For each isolated output, a blown fuse is reported in the input image table | |
| ¬ Each module occupies one slot. T The optional 1771-WHF wiring arms provide 1 fuse per output. ‡ These products are sold and supported by Spectrum Controls, Inc., Bellevue, WA and can be purchased through an Allen-Bradley distributor. |
||||||||
1771 Digital DC Output Modules
| Cat. No. | Number of Outputs | Voltage Category | Operating Voltage | Continuous Current Per Output, Max. |
Continuous Current Per Module, Max. |
Wiring Arm |
Backplane Current Load |
Applications¬ | |
| 1771-OG | 8 | 5V DC | TTL | TTL compatible 5.0…5.3V | 0.02 A sink 0.001 A source |
— | 1771-WC | 168 mA | TTL interfaces |
| 1771-OGD | 16 | 0.20 A sink 0.001 A source |
— | 1771-WH | 230 mA | ||||
| 1771-OB‡ | 8 | 10…60V DC | Source | 10…27V | 1.5 A | 8 A | 1771-WA | 165 mA | -V DC output signal termination |
| 1771-OC‡ | 8 | 42…53V | 1.5 A | 8 A | 1771-WA | 165 mA | |||
| 1771-OBD | 16 | 10…60V | 2 A | 8 A | 1771-WHT | 400 mA | |||
| 1771-OBDS | 16 | 10…40V | 1 A | 8 A | 1771-WH | 300 mA | electronic fusing/current limiting | ||
| 1771-OBN | 32 (4 sets of 8) | 10…30V | 0.5 A (2 A/set) | 8 A | 1771-WN | 330 mA | -V DC output signal termination | ||
| 1771-OQ | 8 | 20.4…26.4V | 2.25 A | 9 A | 1771-WF | 225 mA | -V DC signal termination Isolated circuits | ||
| 1771-OQ16 | 16 | 10…32V DC | Sink or Source | 10…32V | 2 A | 32 A | 1771-WN | 400 mA | isolated circuits general purpose |
| 1771-OVN | 32 (4 sets of 8) | Sink | 10…30V | 0.5 A | 8 A | 1771-WN | 330 mA | +V DC output signal termination | |
| ¬ Each module occupies one slot. T Optional 1771-WHF wiring arms provide 1 fuse per output. ‡ Product not UL or CSA certified. |
|||||||||
1771 Digital Contact Output Modules
| Cat. No. | Number of Outputs | Operating Voltage | Continuous Current Per Output, Max. |
Continuous Current Per Module, Max. |
Type of Contact Outputs | Wiring Arm |
Backplane Current Load | Applications¬ |
| 1771-OW | 8 (4 sets of 2) |
24…138V AC‡ 24…125V DC |
0.25 A @ 120V AC/DC or 1A @ 30V AC/DC (30 W max.) |
— | 8 selectable | 1771-WD | 700 mA | no leakage current |
| 1771-OW16 | 16 (2 sets of 8) |
24…250V AC 24…150V DC |
2 A (80 W DC max.) (500VA AC max.) | 1280 W DC 1440VA AC |
8 N.O. 8 selectable |
1771-WN | 1300 mA | •isolated •no leakage current |
| 1771-OWNA | 32 (4 sets of 8) |
24…138V AC‡ 24…125V DC |
0.25 A @ 120V AC/DC or 1A @ 30V AC/DC (30 W max.) |
12 A @ 45 °C | 32 N.O. | 1771-WN | 2500 mA | •mixed voltages •no leakage current |
| 1771-OWN | 32 (4 sets of 8) |
24…138V AC 24…125V DC |
32 selectable | 1771-WN | 2500 mA | •mixed voltages •signal switches •no leakage current |
||
| 1771-OX§ | 4 (isolated) |
0…250V ACT 0…175V DC |
2 A @ 100V AC (200VA max.) |
— | 4 selectable | 1771-WC | 550 mA | •signal switching •mercury-wetted relays •isolated circuits |
| 1771-OYL | 8 (4 sets of 2) |
0…24V AC/DC | 0.1 A (max.) | — | 4 N.O. 4 N.C. |
1771-WD | 420 mA | •physical isolation •low power dissipation •no leakage current |
| 1771-OZL | 8 (4 sets of 2) |
0…24V AC/DC | 0.1 A (max.) | — | 8 N.O. | 1771-WD | 420 mA | |
| ¬ Each module occupies one slot. T Inductive loads. ‡ Resistive loads. § Product contains Mercury. Consult State laws for sales restrictions. |
||||||||
Analog I/O Modules
| Cat. No.¬ | Number of Inputs/ Outputs | Data Format | Voltage Range | Current Range | Wiring Arm |
Backplane Current Load | External Power Required | Channel Update/ Resolution |
| 1771-IFE Analog Input |
8 differential or 16 single-ended inputs — selectable | Natural Binary or BCD scaling to ±9999 | 0…5V DC 1…5 DC ±5V DC ±10V DC |
4…20 mA 0…20 mA ±20 mA |
1771-WG | 750 mA | None | • 18 ms/8 channels; 36 ms/16 channels • 12 bits + sign |
| 1771-IFF Analog Input |
8 differential or 16 single-ended inputs — selectable | Natural Binary or BCD scaling to ±9999 | 0…5V DC 1…5 dc ±5V DC ±10V DC |
4…20 mA 0…20 mA ±20 mA ±40 mA |
1771-WG | 750 mA | None | • 5 ms/8 channels; 10 ms/16 channels • 12 bits + sign |
| 1771-IFMS Fast Millivolt Input |
8 differential inputs through intrinsically safe connection | ±9999 BCD ±32,767 Binary |
0…50 mV | — | 1771-WG | 750 mA | None | • 14.5 ms/8 channels • 12 bits |
| 1771-IL Isolated Analog Input |
8 isolated (1000V) differential inputs | Natural Binary or BCD scaling to ±9999 | 0…5V DC 1…5V DC ±5V DC 0…10V DC ±10V DC |
4…20 mA 0…20 mA ±20 mA |
1771-WF | 1.3A | None | • 500 ms/8 channels • 15 bits + sign |
| 1771-IXE Thermocouple Millivolt Input |
8 floating differential inputs | Natural Binary or BCD Actual temperature or mV readings | Type E, J, K, R, S, T ±99.99 mV | — | 1771-WI | 750 mA | None | • 50 ms/8 channels • 15 bits + sign (1.0 °C / 1.0 °F/ bit) |
| 1771-IXHR High-Res TC/mV Input |
8 floating differential inputs | Natural Binary only | Type B, E, J, K, R, S, T ±99.99 mV | — | 1771-WI | 750 mA | None | • 25 ms/8 channels • 15 bits + sign (0.1°C/0.1 °F/bit) |
| 1771-IR RTD Input |
6 RTD inputs (three-wire) | Natural Binary or BCD Actual temperature or Ohm readings | 100W platinum 10W copper or other |
— | 1771-WF | 800 mA | None | • 50 ms/8 channels • 16 bits (0.1°C/0.1°F/bit) |
| 1771-OFE1 Analog Output |
4 isolated (1000V) differential outputs |
Natural Binary or BCD Scaled to ±9999 | 1…5V DC 0…10V DC ±10V DC |
— | 1771-WC | 1.5 A | None | • 8.0 ms/4 channels (BCD); 1.6 ms/4 channels (Natural Binary) • 12 bits |
| 1771-OFE2 Analog Output |
— | 4…20 mA | 1.5 A | |||||
| 1771-OFE3 Analog Output |
0…50 mA | 2.5 A | ||||||
| ¬ Each module occupies one slot. | ||||||||
1771 N-Series Analog I/O Modules
- All input channels have scaling, high/low alarms with dead band, rate alarm, and digital filtering.
- Each 4-channel module requires one cable assembly for connection to its RTP. Each 8-channel module requires two cable assemblies for connection to its RTP. The available cable assemblies are: 1771-NC6 (6 ft) and 1771-NC15 (15 ft).
- Each modules has a channel update period of 25 ms per module.
- For each module, the data format is BCD or natural binary.
- All output channels have scaling, user-defined last state, high/low clamp limits, and rate-of-change alarm.
- For each module the step response @ 99.9% is 125 ms.
- Each module occupies one slot.
| Cat. No. | Inputs | Type | Resolution | Outputs | Type | Resolution | RTP Choice | Backplane Current Load |
| 1771-NB4S | 2 | Current only | 4…20 mA (0.34 mA/bit) (module supplies loop power) |
2 | Current | 0…25 mA (3.20 mA/bit) | 1771-RT44 | 1.6 A |
| 1771-NB4T | 2 | mV/TC | • ±100 mV (3.3 mV/bit) • B, R, S, Thermocouple (0.3 °C/bit, 0.6 °F/bit) • E, J, K, T Thermocouple (0.1°C/bit, 0.2 °F/bit) |
2 | Current | 0…25 mA (3.20 mA/bit) | 1771-RT41 | 1.5 A |
| 1771-NBRC | 6 | RTD | • 1…650W (0.0W/bit) • 100W Platinum, Eur (385) (0.03 °C/bit, 0.06 °F/bit) • 100W Platinum, U.S. (3916) (0.03 °C/bit, 0.06 °F/bit) • 120W Nickel • 10W Copper |
2 | Current | 0…25 mA (3.20 mA/bit) | 1771-RTP4 | 1.8 A |
| 1771-NBSC | 6 | Current only | 4…20 mA (0.34 mA/bit) (module supplies loop power) |
2 | Current | 0…25 mA (3.20 mA/bit) |
1771-RTP4 | 3.0 A |
| 1771-NBTC | 6 | mV/TC | • ±100 mV (3.3 mV/bit) • B, R, S, Thermocouple (0.3 °C/bit, 0.6 °F/bit) • E, J, K, T Thermocouple (0.1°C/bit, 0.2 °F/bit) |
2 | Current | 0…25 mA (3.20 mA/bit) |
1771-RTP1 | 1.6 A |
| 1771-NBV1 | 6 | Voltage/Current | • ±10V DC (0.34 mV/bit) • ±20 mA (1.3 mA/bit) |
2 | Voltage | ±10V DC (1.32 mV/bit) |
Voltage in: 1771-RTP4 Current in: 1771-RTP3 |
1.8 A |
| 1771-NBVC | 6 | Voltage/Current | • ±5V DC (0.17 mV/bit) • ±20 mA (0.67 mA/bit) |
2 | Current | 0…25 mA (3.20 mA/bit) |
Voltage in: 1771-RTP4 Current in: 1771-RTP3 |
1.8 A |
| 1771-NIS | 8 | Current only | 4…20 mA (0.34 mA/bit) (module supplies loop power) |
0 | — | — | 1771-RTP4 | 2.9 A |
| 1771-NIV | 8 | Voltage/Current | • ±5V DC (0.17 mV/bit) • ±20 mA (0.67 mA/bit) |
0 | — | — | Voltage in: 1771-RTP4 Current in: 1771-RTP3 |
1.5 A |
| 1771-NIV1 | 8 | Voltage/Current | • ±10V DC (0.34 mV/bit) • ±20 mA (1.3 mA/bit) |
0 | — | — | Voltage in: 1771-RTP4 Current in: 1771-RTP3 |
1.5 A |
| 1771-NIVR | 4 | Voltage/Current | • ±5V DC (0.17 mV/bit) • ±20 mA (0.67mA/bit) |
0 | — | — | 1771-RTP4¬ | 1.5 A |
| 4 | RTD | • 1…650W (0.01W/bit) • 100W Platinum, Eur (385) (0.03 °C/bit, 0.06 °F/bit) • 100W Platinum, U.S. (3916) (0.03 °C/bit, 0.06 °F/bit) • 120W Nickel • 10W Copper |
||||||
| 1771-NIVT | 4 | Volt/Current | • ±5V DC (0.17 mV/bit) • ±20 mA (0.67 mA/bit) |
0 | — | — | 1771-RTP1¬ | 1.5 A |
| 4 | mV/TC | • ±100 mV (3.3 mV/bit) • B, R, S, Thermocouple (0.3 °C/bit, 0.6 °F/bit) • E, J, K, T Thermocouple (0.1°C/bit, 0.2 °F/bit) |
||||||
| 1771-NOC | 0 | — | — | 8 | Current | 0…25 mA (3.20 mA/bit) |
Unfused: 1771-RTP4 Fused: 1771-RTP3 |
2.9 A @ 20 mA/output 3.3 A @ 25 mA/output |
| 1771-NOV | 0 | — | — | 8 | Voltage | ±10V DC (1.32 mV/bit) |
Unfused: 1771-RTP4 Fused: 1771-RTP3 |
2.1 A |
| 1771-NR | 8 | RTD | • 1…650W (0.0W/bit) • 100W Platinum, Eur (385) (0.03 °C/bit, 0.06 °F/bit) • 100W Platinum, U.S. (3916) (0.03 °C/bit, 0.06 °F/bit) • 120W Nickel • 10W Copper |
0 | — | — | 1771-RTP4 | 1.5 A |
| 1771-NT1 | 8 | mV/TC | • ±100 mV (3.3 mV/bit) • B, R, S, Thermocouple (0.3 °C/bit, 0.6 °F/bit) • E, J, K, T Thermocouple (0.1°C/bit, 0.2 °F/bit) |
0 | — | — | 1771-RTP1 | 1.5 A |
| 1771-NT2 | 8 | mV/TC | • -5/+55 mV (0.95 mV/bit) • B, R, S, Thermocouple (0.03 °C/bit, 0.06 °F/bit) • E, J, K, T Thermocouple (0.1°C/bit, 0.2 °F/bit) • C Thermocouple (0.07 °C/bit, 0.1°F/bit) • N Thermocouple (0.03 °C/bit, 0.5 °F/bit) |
0 | — | — | 1771-RTP1 | 1.5 A |
| ¬ To use a voltage channel for current application, you must install a 250W resistor at the RTP. | ||||||||
Specialty I/O Modules
1771 Process Control I/O Modules
| Cat. No. | Number of Inputs/ Outputs | Resolution | Analog Inputs | Analog Outputs | Data Format | Slots | Backplane Current Load | External Power Required | I/O Connection Hardware |
| 1771-TCM | 8 temp. inputs (for 8 PID heat/cool loops) |
16-bit resolution or 15-bits plus sign bit | Thermocouple | None | 16-bit Integer (natural binary) | 1 | 1.5 A | None | 1771-RTP1 |
| This Temperature Control Module is an intelligent I/O module that can accommodate 8 heat/cool PID loops for temperature control applications. The module has 8 analog inputs, each of which functions as the input for a PID loop. The PID algorithm is performed on the module for each of the loops. The output of each loop is sent from the module to the PLC processor’s data table as both a numeric value and as a time-proportioned output (TPO) signal. Your ladder logic can send either the numeric value to an analog output module, or the TPO signal to a digital output module to close the loop. For very fast cut-off, your ladder logic can use the TPO signal single-transferred to the input image. The 1771-TCM module has a thermocouple input (+100 mV) for each PID loop. The module provides auto-tuning of PID loops, self-calibration (external reference required) self-diagnostics, and detection of input open-circuit (including thermocouple break). This module includes special tuning options for temperature control in plastics machinery applications but can be used in most other temperature control situations as well. | |||||||||
| 1771-TCMR | 8 temp. inputs (for 8 PID heat/cool loops) |
16-bit resolution or 15-bits plus sign bit | RTD | None | 16-bit Integer (natural binary) | 1 | 1.5 A | None | 1771-RTP1 |
| This Temperature Control Module is an intelligent I/O module that can accommodate 8 heat/cool PID loops for temperature control applications. The module has 8 analog inputs, each of which functions as the input for a PID loop. The PID algorithm is performed on the module for each of the loops. The output of each loop is sent from the module to the PLC processor’s data table as both a numeric value and as a time-proportioned output (TPO) signal. Your ladder logic can send either the numeric value to an analog output module, or the TPO signal to a digital output module to close the loop. For very fast cut-off, your ladder logic can use the TPO signal single-transferred to the input image. The 1771-TCMR module has an RTD input for each PID loop. The module provides auto-tuning of PID loops, self-calibration (external reference required) self-diagnostics, and detection of input open-circuit (including thermocouple break). This module includes special tuning options for temperature control in plastics machinery applications but can be used in most other temperature control situations as well. | |||||||||
1771 Positioning I/O Modules
| Cat. No. | Inputs | Input Frequency, Max. | Outputs | Module Update Period | Slots | Backplane Current Load | Wiring Arm |
| 1771-DL | 12…24V DC 8 bit absolute encoder (gray code format only) | 1 kHz | (1) 120V AC 0.5 A continuous zero speed switch | 1 ms | 1 | 0.12 A | 1771-WB |
| The Gray Encoder Input Module contains a decoder that converts an 8-bit gray-code input value from an absolute encoder into an 8-bit natural binary value. This absolute position value is available through the I/O scan to the input image table. A zero-speed output disables machine motion if encoder failure is detected. This module is compatible with PLC-5 processors. | |||||||
| 1771-IJ | Incremental encoder or single-channel device: 5V TTL single-ended or differential |
50 kHz | (2) 5V DC open- collector 0.5 A per output | 1.3 ms | 2 | 1.2 A | 1771-WB |
| The Encoder Counter Module maintains a count (independent of the PLC-5 processor) of input pulses that typically come from such devices as quadrature-type encoders, high-speed optical-beam counters, and certain types of switches. The module makes decisions based on the count total by comparing it to previously programmed values and activating either one or both of its outputs based on the results of the comparison. The module can also return the AC cumulated count (BCD or binary numbers) to the processor for arithmetic computations or display. The module also provides inputs for a marker signal from an encoder and a voltage-level signal from a limit switch to allow for home positioning. 1771-IJ module outputs can either be driven from the 5V DC supply through the module or from a separate load supply of a different voltage. | |||||||
| 1771-IK | Incremental encoder or single-channel device: 12…24V DC single-ended |
50 kHz | (2) 5V DC open- collector 0.5 A per output | 1.3 ms | 2 | 1.2 A | 1771-WB |
| The Encoder Counter Module maintains a count (independent of the PLC-5 processor) of input pulses that typically come from such devices as quadrature-type encoders, high-speed optical-beam counters, and certain types of switches. The module makes decisions based on the count total by comparing it to previously programmed values and activating either one or both of its outputs based on the results of the comparison. The module can also return the AC cumulated count (BCD or binary numbers) to the processor for arithmetic computations or display. The module also provides inputs for a marker signal from an encoder and a voltage-level signal from a limit switch to allow for home positioning. 1771-IK module outputs can be driven either from the external supply through the module or from a separate load supply. | |||||||
| Cat. No. | Inputs | Input Frequency, Max. | Outputs | Module Update Period | Slots | Backplane Current Load | Wiring Arm |
| 1771-QA Stepper Motor Positioning Assembly |
The Stepper Motor Positioning Assembly provides open-loop stepper control and point-to-point positioning. The assembly consists of one 1771-M1 Stepper Motor Controller Module and one 1771-OJ Pulse Output Expander Module (see rows below). One M1 module can control three OJ modules. The system can be expanded modularly from one to three axes per I/O chassis by placing one to three OJ modules in the chassis. The OJ modules can be located in any I/O module slot and in any order in the I/O chassis. Multiple stepper assemblies can be distributed throughout the plant using remote I/O or Data Highway configurations. Each axis can control a linear slide although not limited to that type of mechanical load. The axes can be controlled independently or control of the axes can be synchronized. The OJ module will accept from TTL up to 30V DC inputs, and inputs from the 1771-IJ, -IK modules. | ||||||
| 1771-M1 | — | — | — | — | 1 | 1.75 A | None |
| 1771-OJ | 5…30V DC digital inputs for Jogging & E Stop | — | 20 kHz output to translator Source/Sink Push-Pull | 2.4…3.1ms to update output | 1 per OJ | 0.80 A | 1771-WB |
| 1771-QC Servo Positioning Assembly |
The Servo Positioning Assembly consists of one 1771-M3 Servo Controller Module and one 1771-ES Servo Encoder Feedback Expander Module. With a basic servo positioning assembly (plus a servo drive, motor, tachometer, and encoder) you can provide closed-loop servo control for point-to-point positioning of one axis. You can add a second 1771-ES expander to control a second axis and a third 1771-ES expander to control a third axis. | ||||||
| 1771-M3 | — | — | — | — | 1 | 1.75 A | None |
| 1771-ES | 5…30V DC, Incremental encoder. Auxiliary digital inputs: Jog, Start-stop, Override | 250 kHz differential input | ±10V DC analog command | 2.4 ms to update analog output voltage | 2 per ES | 1.7 A | 1771-WB |
| 1771-QB Linear Positioning Module |
The Linear Positioning Module is an intelligent I/O module designed specifically for closed-loop hydraulic servo control using a magnetostrictive linear displacement transducer. Axis motion profiles reside in the module and provide blended, chained, or continuous operations. The velocity or position of the axis triggers the next segment in the profile. Segments control the state of programmable outputs. The user can configure 242 segments within a single profile. | ||||||
| Auxiliary digital: •8 mA/input @ 12V DC •16 mA/input @ 24V DC •Logic 0: 0…4V DC •Logic 1: 10…30V DC Transducer |
— | Auxiliary digital: •digital source Servo valve: •analog ±10V DC, ±20 mA, ±50 mA, ±100 mA |
2 ms/axis | 1 | 1.6 A max. 1.1 A typical |
1771-WN | |
| 1771-QD Injection Control Module |
The Injection Control Module is a self-tuning closed-loop control module designed for thermoplastic and thermoset injection molding machines. The injection control module works with a PLC-5 processor and an operator interface (1784-T30C or 2711-KC1) using ProSet™ software to create a total machine control system. The module controls hydraulic cylinder velocity and pressure independently of its processor. The module is user configurable. It has on-board program execution and selectable profiles. | ||||||
| 3 analog inputs | — | 2 analog outputs | 2 ms scan auto tune PID and Velocity | 1 | 0.5 A | 1771-WF | |
| 1771-QDC Plastic Molding Module |
The Plastic Molding Module is a dedicated module that controls the inject, clamp, and eject phases of an injection molding machine. The module performs open- or closed-loop control and is adaptable to most hydraulic configurations. With the Allen-Bradley Expert Response Compensation™ (ERC) feature, the module automatically compensates for variation in the molding machine's hydraulic characteristics without user intervention. ERC is an adaptive learning capability which automatically compensates for process variations while providing closed-loop control in the plastics industry. Provides flexibility for: 1- through 4-valve system; proportional or servo valves; selectable profiles per phase; trending of injection profile. The ample number of steps in each profile lets you accurately model the desired flow or motion to be performed during each molding task. | ||||||
| 4 analog inputs | — | 4 analog outputs | 2 ms scan auto tune PID and Velocity | 1 | 1.2 A | 1771-WF | |
| 1771-QI Co-injection Module |
A pair of Co-injection Modules can control the injection phase of a plastic injection molding machine with 2 injection heads. Each module controls one of the two heads. In conjunction with the two 1771-QI modules controlling co-injection, a 1771-QDC module can be used to control clamping and ejection. The module performs open- or closed-loop control and is adaptable to most hydraulic configurations. With the Allen-Bradley Expert Response Compensation™ (ERC) feature, the module automatically compensates for variation in the molding machine’s hydraulic characteristics without user intervention. ERC is an adaptive learning capability which automatically compensates for process variations while providing closed-loop control in the plastics industry. Provides flexibility for: 1- through 4-valve system; proportional or servo valves; selectable profiles per phase; trending of injection profile. The ample number of steps in each profile lets you accurately model the desired flow or motion to be performed during each molding task. | ||||||
| 4 analog inputs | — | 4 analog outputs | 2 ms scan | 1 | 1.2 A | 1771-WF | |
| 1771-VHSC High-Speed Counter Module |
The High-Speed Counter Module has 4 high-speed BCD or natural-binary 12-bit counters. The counter inputs can accept pulses from encoders, DC pulse generators, DC flow meters, and mechanical limit switches. The count and the rate are available to the PLC processor. You can assign any number of the 8 outputs to any of the counters; you can assign them all to a single counter. The module provides 6 modes of operation (counter, encoder X1, encoder X4, period/rate, rate/measurement, and continuous/rate mode) to AC hieve application-specific results that help increase overall system performance. You can configure any of the four counters for any one of these modes. Compatible with PLC-5 processors. | ||||||
| 12 digital inputs (3 per counter) |
1 MHz in counter mode | 8 digital outputs | 100 ms | 1 | 0.65 A | 1771-WN | |
1771 Specialized I/O Modules
| Cat. No. | Number of Inputs/Outputs | Voltage Range | Backplane Current Load | Slots | Wiring Arm | Miscellaneous |
| 1771-CFM | 4 digital inputs: •50 mV…200V AC peak — magnetic pickup •4…40V DC (TTL compatible) •Bently 3300 5 & 8 mm — proximity pickups 4 digital outputs: 5…40V DC (supplied by user) |
1.0 A max. | 1 | 1771-WN | Module scan time: 1.3…5 ms (depending on configuration and frequency) | |
| The Configurable Flowmeter Module interfaces with magnetic pickups, single-channel shaft encoders, turbine flowmeters, or any source of TTL pulses. The module supports rates as high as 100 kHz and counts to a maximum of 9,999,999. The module has 4 independent input channels and 4 independent outputs. You can configure each input channel for any of 4 modes. You can configure each output to operate as a function of values from any of the input channels. This module is capable of performing a prover function for custody transfer. | ||||||
| 1771-DS | 8 direct digital inputs | 10…27V DC | 0.375 A | 1 | 1771-WF | Pulse capture time: 0.1, 0.5, 1, 2.5 or 5 ms |
| The Latching Input Module detects and latches pulses of 0.1 to 5.0 ms duration from optical transmitters that have isolated pulse and gate outputs. You select the mode of input operation: independent for a single-pulse environment, paired for a multi-pulse environment. | ||||||
| 1771-IS | 72 direct digital inputs for: •up to four 4-digit BCD TW •up to six 3-digit BCD TW •up to 72 discrete switches |
5V DC (supplied by module) |
0.8 A | 1 | 1771-WF | Module scan: •15.3 ms (normal) •5.1 ms (fast) |
| The Multiplexer Input Module reads the steady-state status of six 3-digit or four 4-digit BCD thumbwheel switches, latches the off-to-on transition of up to 72 momentary hard-contact switches from a keyboard, or reads the steady-state status of up to 72 discrete hard-contact switches. | ||||||
| 1771-PM | — | — | 1.2 A | 1 x 2 | 1771-WB | — |
| The Clutch/Brake Control System is designed for clutch/brake control of part-revolution mechanical power presses. Features such as independent and constant I/O monitoring provide safety levels required by ANSI and OSHA — in a system of flexible reliable programmable control. The heart of the system is the clutch/break module (1771-PM) which you install instead of an I/O adapter module in the left-most slot of each of two I/O chassis. | ||||||
| 1771-SIM | 8 input switches 8 output indicators |
— | 0.2 A | 1 | — | — |
| The I/O Simulator Module has 8 dedicated inputs for 8 toggle switches and 8 dedicated outputs for 8 indicators built into its front panel. You can use the 8 switches to simulate other open/close devices. The 8 indicators identify which addressed outputs are turned on in its byte in the output image table. One or more 1771-SIM modules can be installed in various slots of a 1771 I/O chassis to do a processor/chassis-level checkout prior to connecting inputs or outputs. If one is installed in a spare chassis slot, the switches may be used to effect program changes and the indicators can be addressed to show program status. | ||||||
|
Wiring Arms
Wiring arms provide an easy, flexible interconnection between plant wiring and Allen-Bradley 1771 I/O modules. The integral I/O chassis clamp provides “swing-away” operation for easy module access; an integral module locking tab helps ensure connection integrity. Constructed of an industrial-grade thermoplastic, each wiring arm has one (two for isolated circuits) connection point for each required input or output to the module, plus any needed ancillary connection points for line or signal input power and ground or return. Incoming wires (14 AWG max) may be directly clamped or spade-lugged to the arm. Wiring-arm contacts to the I/O module are either tin or gold plated.
The 1771 Fused Wiring Arm (1771-WHF, -WHFB) provides fuse protection for each output of a module and eases fuse replacement without removing a module from the chassis.
- The loss of a single circuit will not affect any other signals in the 16-output module
- Replace fuses by removing individual fuse holders without removing the output module
- Completely compatible with the 1771-WH Wiring Arm and can be used as a direct replacement
1771 Wiring Arms
| Wiring Arm¬ |
Number of I/O, Max. | Number of Terminals |
Contact Plating |
Fuse Size max. | Weight | Typical Application |
| 1771-WA | 8 | 10 | 9 Tin 1 Gold |
— | 0.1 kg (0.1 lb) | General purpose, AC /DC 24…220V |
| 1771-WB | 8 | 12 | Gold | — | 0.1 kg (0.1 lb) | Analog |
| 1771-WC | 8 | 10 | Gold | — | 0.1 kg (0.1 lb) | TTL, Low current |
| 1771-WD | 8 | 12 | Tin | — | 0.1 kg (0.1 lb) | General purpose, 120V AC/DC 6-isolated-I/O modules |
| 1771-WE | 8 | 18 | Gold | — | 0.1 kg (0.2 lb) | High current "Thermo Wiring Arm" |
| 1771-WF | 8 | 18 | Gold | — | 0.1 kg (0.2 lb) | Low resistance |
| 1771-WG | 16 | 21 | Gold | — | 0.1 kg (0.2 lb) | Low resistance |
| 1771-WH | 16 | 21 | Tin | — | 0.1 kg (0.2 lb) | General purpose |
| 1771-WHF | 16 | 21 | Tin | 3A | 0.1 kg (0.3 lb) | General purpose, fused wiring arm, individual circuit protection |
| 1771-WHFB | 16 | 21 | Tin | 1.5A | 0.1 kg (0.3 lb) | |
| 1771-WI | 8 | 18 | Gold | — | 0.1 kg (0.2 lb) | Thermocouple |
| 1771-WN | 32 | 40 | Tin | — | 0.1 kg (0.3 lb) | 10…32V DC, digital |
| ¬ Screw torque is 7-9 lb•in for all these wiring arms. | ||||||
Remote Termination Panels and Cables
|
The 1771 N-series analog I/O modules and some other 1771-series modules require remote termination panels (RTPs) for I/O connections. These modules have no connections for wiring arms. Instead, they provide one or two D-shell connectors for cable connection to one or two D-shell connectors at the RTP. Cable assemblies are available in lengths of 1.8m (6 ft) or 4.6m (15 ft).
The RTPs mount on asymmetrical #1 or symmetrical #3 DIN rails. An RTP provides connection points between the cable assembly on the I/O module side and the individual wires on the customer side. An RTP can also provide optional fuses/resistors.
An RTP configuration can reduce installation costs by eliminating wiring between a wiring arm and a terminal strip inside of the enclosure. With an RTP configuration, an I/O module can be replaced without disturbing a current loop.
1771-Series Remote Termination Panels and Cables
| Cat. No. | Number of I/O | Special Features | Weight | Dimensions (HxWxD), Approx. |
| 1771-RT41 | 4 | • Cold-junction-compensation connections for thermocouple inputs • Add resistor to use for voltage input |
0.1 kg (0.3 lb) | 75 x 89 x 58 mm (3.0 x 3.5 x 2.3 in) |
| 1771-RT44 | 4 | • Use as is for current inputs • Add resistor to use for voltage input |
0.1 kg (0.3 lb) | |
| 1771-RTP1 | 8 | • Cold-junction-compensation connections for thermocouple inputs • Add resistor to use for voltage input |
0.3 kg (0.6 lb) | 75 x 135 x 58 mm (3.0 x 5.3 x 2.3 in) |
| 1771-RTP3 | 8 | • Use as is (with built-in resistor) for current inputs | 0.2 kg (0.5 lb) | |
| 1771-RTP4 | 8 | • Use as is for current inputs • Add resistor to use for voltage input |
0.2 kg (0.5 lb) | |
| 1771-NC6 | These cables connect the I/O module to the remote termination panel | 0.3 kg (0.6 lb) | 1.8 m (6 ft) | |
| 1771-NC15 | 0.5 kg (1.0 lb) | 4.6 m (15 ft) | ||
Distributed I/O
In addition to controlling/monitoring 1771 I/O in the local chassis and in remote chassis across a ControlNet, Extended Local, or Universal Remote I/O link, the PLC-5 processor can control/monitor I/O in remote locations on a variety of platforms distributed across ControlNet, DeviceNet and Universal Remote I/O links.
| For information on selecting: | for use across a: | see this section: |
| 1746 I/O modules (plus their I/O adapter modules, chassis, and power supplies) | Universal Remote I/O link | SLC 500 System |
| 1734 I/O modules (plus their I/O adapter modules, bases, and power supplies), 1790 I/O blocks, 1791D I/O blocks, 1792D I/O blocks, or 1798 I/O modules (plus their I/O adapter modules) | DeviceNet I/O link | I/O |
| 1769 I/O modules (plus their I/O adapter modules and power supplies) | DeviceNet I/O link | CompactLogix System |
| 1794 or 1797 I/O modules (plus their I/O adapter modules, terminal bases, and power supplies) | ControlNet, DeviceNet, or Universal Remote I/O link | I/O |