Catalogs > Automation Systems Catalog > Programmable Controllers > PLC-5 System > I/O Modules and Hardware
I/O Modules and Hardware
| I/O Adapter Modules |  |
I/O Chassis | |
1771 I/O Module Overview | |
Digital I/O Modules | |
Analog I/O Modules | |
| Specialty I/O Modules | |
Wiring Arms | |
Remote Termination Panels and Cables | |
Distributed I/O | |
| 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 |
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| 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) |
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| 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. | ||||||||