- Sixteen 12/24 V DC sourcing input points for ControlLogix field circuits
- 10–30 V DC operating range must match the installed field supply
- Replacement depends on point wiring, RTB selection and project mapping
1756-IV16 is an Allen-Bradley ControlLogix module for reading sixteen 12/24 V DC sourcing input signals.
Its field-side wiring must be evaluated as a complete circuit: device polarity, common, supply and the removable terminal block all affect whether a channel is recognized.
For a replacement, retain the controller project and panel wire identification, then prove each input with the field circuit connected.
Availability, condition, price, and shipping time for 1756-IV16 are confirmed during quotation.
Allen-Bradley 1756-IV16 DC Sourcing Input Module Manuals, Datasheets, Links
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
- Wire 1756-IV16 only to compatible sourcing-input field circuits
- Confirm the 10–30 V DC signal at the module terminal, not only at the device
- Identify commons and field returns before moving an RTB to a replacement module
- Use the published 250 V continuous group-to-backplane isolation rating in the cabinet design
- Keep field circuits separated according to the approved wiring drawing
- Investigate commoning or grounding changes before reconnecting a faulted input group
- Compare every physical input channel with the ControlLogix I/O tree
- Check terminal seating before diagnosing a missing input point
- Prove field-device state and controller diagnostics together after replacement
- ControlLogix machine panels that monitor 24 V DC sensors
- Discrete status acquisition from compatible sourcing field devices
- Published 1771-to-ControlLogix I/O conversion projects using the documented conversion system