This 8-channel DC digital input module supports a wide voltage range of 5-30V. It can freely switch between source-type and drain-type signal modes. The built-in adjustable input filter can suppress on-site signal jitter and effectively avoid signal mis-triggering issues. This device is compatible with the 1771 rack and PLC-5 control system and is commonly used for sensor signal acquisition and spare parts replacement in old automated production lines.
Hanyite Automation Technology has sufficient stock. Allen Bradley's 1771-IQ is always in stock. All outbound goods are brand new original products and efficiently meet the maintenance and project renovation needs of enterprises.
This Allen Bradley 1771-IQ is an 8-channel DC digital input module, working with 5 to 30 volts DC. You can switch it between sourcing and sinking signal modes just by adjusting the field wiring, so it fits different sensor setups easily.
It also has optional input filtering to smooth out contact bounce and electrical noise from the shop floor. This helps keep your readings steady, even in noisy environments.
Each channel comes with its own LED status light. You can just glance at the front and see right away if a signal is on or off, which speeds up routine checks and troubleshooting on site.
It fits right into a standard 1771 series rack, using only one slot so it doesn’t take up too much cabinet space. When paired with other controllers from the same series, you don’t need any extra adapters or converters.
It also runs on low power and doesn’t overburden the backplane, even when operating 24/7. That makes it reliable for long production runs and continuous use.
The product is made with industrial-grade electronic components and reinforced casing. It undergoes multiple rigorous tests before leaving the factory. The overall structural strength can withstand continuous vibrations in industrial environments. The internal circuit has been shielded against electromagnetic interference, making it difficult for the interference signals from large-power devices around to affect the normal operation of the module. The module can tolerate the normal industrial temperature and humidity environment. It can operate stably in a humid space without condensation for a long time, has a slow aging rate, and is less likely to have hidden faults over the long term, meeting the long-term maintenance and usage requirements of outdated industrial control systems.
This module is mainly used for signal acquisition in traditional PLC-5 control systems. It works with limit switches, push buttons, proximity switches and other field devices to read on-site data reliably.
You’ll often find it in the control circuits of machine tools, where it feeds steady input signals for start-stop functions, position changes, and other automated operations.
It also fits well on material handling and assembly lines, where it keeps collecting sensor signals to keep the whole process running in order.
It’s a common choice for retrofits and spare parts replacements. For older 1771-series systems still in use, swapping out worn-out modules with this one is a straightforward way to get equipment back up and running.
Q1. How many input channels does this module have and what voltage type is it compatible with?
This module is equipped with 8 digital input channels and supports DC voltage signals ranging from 5V to 30V. It is a dedicated DC input module.
Q2. Which racks and controllers can it be used with?
It is compatible with the full range of standard I/O racks of 1771 series and the full range of PLC-5 controllers. It is an I/O unit for the old AB control system.
Q3. How to switch between plug-in and pull-in input modes during on-site wiring?
No hardware modification is required. Adjust the wiring method according to the type of on-site equipment to flexibly switch between the two signal input modes. The Allen Bradley 1771-IQ works seamlessly with both common sensor types when wired correctly.
Q4. Can other models of I/O modules be installed in the same rack?
Under the premise of following the rack slot rules, it can be mixed and used with 1771 series regular I/O modules.
Address
No. 169, Xinggang 2nd Li, Haicang District, Xiamen, China
Tel
