FLEX I/O Digital Input Modules
17
Publication 1794-IN093E-EN-P - August 2018
Specifications
Specifications – 1794-IB8
Attribute
Value
Number of inputs
8, current, sinking
Recommended terminal base unit
1794-TB3, 1794-TB3S, 1794-TB3K, 1794-TB3SK, 1794-TBKD,
1794-TB37DS
On-state voltage, min
10V DC
On-state voltage, nom
24V DC
On-state voltage, max
31.2V DC
On-state current, min
2.0 mA
On-state current, nom
8.0 mA
On-state current, max
12.0 mA
Off-state voltage, max
5.0V DC
Off-state current, max
1.5 mA
Nominal input impedance
4.6 k
Ω
Isolation voltage
50V (continuous), Basic Insulation Type
Type tested @ 850V DC for 60 s, between field side and system
No isolation between individual channels
FlexBus current
20 mA @ 5V DC
Power dissipation, max
3.5 W @ 31.2V DC
Thermal dissipation, max
11.9 BTU/hr @ 31.2V DC
Specifications – 1794-IB16
Attribute
Value
Number of inputs
16, current, sinking
Recommended terminal base unit
1794-TB3, 1794-TB3S, 1794-TB3K, 1794-TB3SK, 1794-TBKD,
1794-TB37DS
On-state voltage, min
10V DC
On-state voltage, nom
24V DC
On-state voltage, max
31.2V DC
On-state current, min
2.0 mA
On-state current, nom
8.0 mA