Specifications

SLC 500 Digital I/O Modules 45
Publication 1746-IN027D-EN-P - December 2012
Combination Input/Output Modules
Specifications – 1746-IO4, 1746-IO8, 1746-IO12, and 1746-IO12DC
Attribute Value
1746-IO4
(1)(2)
(1)
Certified for Class 1, Division 2 hazardous location by CSA.
(2)
See specifications for catalog numbers 1746-IA4 and 1746-OW4. Continuous Current per 1746-IO4 Module is 4.0 A.
Continuous Current per 1746-IO8 Module is 8.0 A.
1746-IO8
(1)(2)
1746-IO12
(1)(3)(4)
(3)
Removable terminal block.
(4)
See specifications for catalog numbers 1746-IA16 and 1746-OW16. Continuous Current per 1746-IO12 Module is 8.0 A.
1746-IO12DC
(3)(5)(6)(7)
(5)
See specification for catalog numbers 1746-IB16 and 1746-OW16. Continuous Current per 1746-IO12DC Module is 8.0 A.
(6)
Certified for Class 1, Division 2 hazardous location by C-UL.
(7)
Use the following ID Code when configuring your system with programming software or the HHT: 1746-IO12DC = 1512.
Points per module 2 inputs
2 outputs
4 inputs
4 outputs
6 inputs
6 outputs
6 inputs
6 outputs
Points per common 2 4 6 6
Voltage category 120V AC 24V DC
Voltage, operating (inputs) 85...132V AC 10...30V DC
Voltage category (outputs) 100/120V AC Relay contact output
Voltage, operating (outputs) 5...265V AC
5...125V DC
Backplane current
consumption
5V DC 0.030 A 0.060 A 0.090 A 0.080 A
24V DC 0.025 A 0.045 A 0.070 A 0.060 A
TIP
For combination I/O modules 1746-IO4, 1746-IO8, 1746-IO12 and 1746-IO12DC):
The first several seconds of any powerup or when power is applied to a rack that is
not under processor control, the output LED indicators of the combination input and
output modules in the rack will be illuminated.
Racks are not under processor control if one of the following conditions exist:
• Modular Hardware Style (only): Processor is absent from the rack or the rack
interconnect cable is not properly connected.
• Modular Hardware Style and Fixed Hardware Style: The processor does not have the
firmware PROM installed or the processor is not functioning properly.