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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
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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 at 60 Hz
1.9 mA at 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-sc-IMI16‡  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.
‡ 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-IGD 16 5V DC TTL TTL-compatible
5.0…5.3V
<1 ms 1771-WH 130 mA TTL interfaces, BCD interfaces encoders (A-B Bulletin 854C)
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 = 15 (±7) ms
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 = 15 (±7) ms
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
  
⋆ 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-WH‡  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-WH‡  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.
‡ 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-OBD 16     10…60V 2 A 8 A 1771-WH‡  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.
‡ Optional 1771-WHF wiring arms provide 1 fuse per output.

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-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.
‡ Inductive loads.
§ Resistive loads.