

The Allen-Bradley 1756-IC16 is a high-performance 16-point digital input module designed for the ControlLogix platform, offering robust signal acquisition for 24V DC sensors, switches, and proximity devices. Engineered for demanding industrial environments, this module provides galvanic isolation between input groups and the backplane, ensuring accurate data capture even in electrically noisy settings. Its sink/source compatibility allows direct connection to both NPN and PNP output devices, streamlining system design. The 1756-IC16 supports hot-swapping in any ControlLogix chassis slot, enabling rapid maintenance without halting production. With a wide operating temperature range and compliance with global safety standards, it is an ideal choice for discrete manufacturing, process control, and infrastructure automation.
| Parameter | Specification |
|---|---|
| Product Family | ControlLogix Digital I/O |
| Model Number | 1756-IC16 |
| Input Type | Digital (Discrete) |
| Number of Inputs | 16 |
| Input Voltage Rating | 24V DC (10-30V DC operating range) |
| Input Current (Typical) | 8 mA per point at 24V DC |
| Input Configuration | Sink (NPN) or Source (PNP) – field-selectable per module |
| Isolation Voltage | 1500V AC between input groups and backplane; 500V AC between groups |
| Off-State Voltage (Max) | 5V DC |
| Off-State Current (Max) | 1.5 mA |
| On-State Voltage (Min) | 10V DC |
| On-State Current (Min) | 2 mA |
| Input Delay (Off to On) | 1 ms typical (filter selectable via software) |
| Input Delay (On to Off) | 1 ms typical (filter selectable via software) |
| Module Location | Any slot in 1756 ControlLogix chassis |
| Backplane Current (5V) | 100 mA |
| Backplane Current (24V) | 0 mA (module powered from backplane only) |
| Power Dissipation | 3.0 W (max) |
| Thermal Dissipation | 10.2 BTU/hr (max) |
| Operating Temperature | 0°C to +60°C (32°F to +140°F) |
| Storage Temperature | -40°C to +85°C (-40°F to +185°F) |
| Relative Humidity | 5% to 95% non-condensing |
| Vibration Resistance | 5 g Standard Models 10-500 Hz (operating) |
| Shock Resistance | 30 g (operating) |
| Enclosure Type | Open (IP20) – suitable for cabinet installation |
| Wiring System | Removable terminal block (1756-TBCH or 1756-TBS6H) |
| LED Indicators | One green LED per channel (input status); one red LED (module fault) |
| Communication Protocol | ControlBus (backplane) – deterministic data transfer |
| Certifications | CE, cULus, ATEX (Zone 2), IECEx, TÜV (functional safety pending) |
| Weight | Approx. 0.34 kg (0.75 lb) |
| Dimensions (H x W x D) | 144 mm x 35 mm x 130 mm (5.67 in x 1.38 in x 5.12 in) |

What Does Our Clients Say
Mitsubishi MR-J4
Laura Navas
Great product!
2019/12/01
Keyence sensor
EQDR SALES
Original and fast!
2020/02/22