- Receives sixteen individually isolated 120 V AC field inputs
- Provides selectable input filters, change-of-state reporting, and timestamp support
- Uses a separately ordered 36-position ControlLogix removable terminal block housing
1756-IA16I is an Allen-Bradley isolated ac digital input module used in ControlLogix control systems.
The module brings isolated AC switch, relay, and auxiliary-contact states into a ControlLogix project while limiting channel-to-channel ground interaction.
Before installation or replacement, verify Series A, 79-132 V AC field power, frequency, per-channel L2 wiring, RTB type, input filters, electronic keying, timestamp and change-of-state settings, chassis slot, and project configuration.
Availability, condition, price, and shipping time for 1756-IA16I are confirmed during quotation.
Allen-Bradley 1756-IA16I Isolated AC Digital 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.
- Each channel has an individually isolated AC input circuit
- The documented operating range is 79-132 V AC at 47-63 Hz
- 1756-TBCH or 1756-TBS6H RTB hardware is ordered separately
- Off-to-on filtering can be set to 1 or 2 milliseconds
- On-to-off filtering can be set to 9 or 18 milliseconds
- Cyclic update and change-of-state behavior are configured in the controller project
- Electronic keying must match the intended compatibility policy
- Timestamp and change-of-state settings should be validated against the task design
- Channel wiring and field voltage must be tested before enabling production logic
- Monitoring 120 V AC limit switches and auxiliary contacts
- Isolated status acquisition from motor-control and power-distribution equipment
- ControlLogix digital input expansion where channel-to-channel isolation is required