The 1771-IBN/C ALLEN-BRADLEY PLC-5 Digital Input Module is a cornerstone component for legacy and modern industrial control systems, designed to interface directly with the PLC-5 chassis via the backplane. This module excels in high-density discrete input acquisition, offering 32 optically isolated channels that withstand harsh electrical noise environments. Its robust design supports both AC and DC field signals, making it ideal for monitoring pushbuttons, limit switches, proximity sensors, and relay contacts in manufacturing, process, and utility automation. The 1771-IBN/C integrates seamlessly with 1771 I/O racks, providing real-time status data to the processor for logic execution and alarm management. With a wide operating temperature range and industrial-grade isolation, this module ensures reliable performance in demanding conditions, such as automotive assembly lines or water treatment plants.
| Parameter |
Specification |
| Model Number |
1771-IBN/C |
| Product Type |
Digital Input Module for PLC-5 Systems |
| Number of Inputs |
32 (Discrete) |
| Input Voltage Range |
10-30V DC or 24-240V AC (50/60 Hz) |
| Input Current (Typical) |
7 mA at 24V DC; 10 mA at 120V AC |
| Isolation Voltage |
1500V RMS between field and backplane |
| 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) |
| Backplane Current (5V DC) |
800 mA (maximum) |
| Backplane Current (24V DC) |
0 mA (no external supply required) |
| LED Indicators |
32 green LEDs for input status (one per channel) |
| Response Time (OFF to ON) |
1 ms typical for DC; 10 ms typical for AC |
| Response Time (ON to OFF) |
1 ms typical for DC; 20 ms typical for AC |
| Field Wiring |
Removable terminal block (1771-WN series) or 40-pin ribbon cable |
| Backplane Compatibility |
1771-A1B, 1771-A2B, 1771-A3B, 1771-A4B chassis |
| Input Filter (Software Configurable) |
0.5 ms, 1 ms, 2 ms, or 5 ms (via PLC-5 processor) |
| Standards Compliance |
UL 508, CSA C22.2, CE Mark, IEC 61131-2 |
| Weight |
0.45 kg (1.0 lb) |
| Dimensions (H x W x D) |
13.0 x 4.5 x 14.0 cm (5.1 x 1.8 x 5.5 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