What is a remote IO controller?
The remote IO controller is also called a remote IO module, which can be understood as a switch that can be controlled remotely. I/O is the input/output of a switching value (digital quantity), I is the input, and O is the output.
The remote IO controller can detect the input switching value and control the output switching value, for example: input can access switches, proximity switches, magnetic switches, photoelectric switches, and other switching signals. The output can drive solenoid valves, relays and other electrical appliances to work in an on-off mode.
Why use a remote IO controller?
1. Save equipment investment
In some industrial applications, PLCs with local I/O modules cannot be installed near field devices due to complex environmental factors.
2. Save cable costs
Wireless instead of wired. Using a remote IO controller, signals can be received from distant sensors and remote control signals can be sent to control valves, motors and other final actuators.
3. Reduce signal interference
The remote IO controller supports a complete bus and has high compatibility. It adopts isolation technology with each channel to improve the anti-interference ability of long-distance signals in the project.
IOTRouter’s Remote IO Controller
IOTRouter‘s remote IO controller has a variety of network types, including 4G, LoRa, and Ethernet. The product supports local logic processing operations, automatic collection and active reporting, Modbus RTU/TCP adaptation, automatic calibration threshold reporting, configuration software docking, dry and wet node IO detection and other special functions.
It supports one-to-one and many-to-one networks. The configuration software interface window is visualized, allowing users to connect, debug, and configure equipment on-site or remotely.
It can be widely used in power systems, industrial monitoring, traffic management, environmental monitoring, meteorology, water conservancy, coal mines, petroleum, new energy and other industries, providing strong support for communication networking and wireless transmission of projects.
Remote IO controller selection table
| Model | Interface Type | Network Type |
| ZHC493C | 1RS485, 2DI, 1DO, 1AI | 4G full network communication |
| ZHC492C | 1RS485, 4DI, 4DO, 4AI | 4G full network communication |
| ZHC495C | 1RS485, 8DI, 8DO | 4G full network communication |
| EG2000 | 1RS485 | LoRa |
| ET2120 | 1RS485, 4AI, 4AO | LoRa |
| ET2110 | 1RS485, 4DI, 4DO | LoRa |
| ZHC1931 | 1RS485/RS232, 2DI, 1DO, 1AI | Ethernet |
| ZHC1921 | 1RS485, 6DI, 2PIN, 4DO, 4AI | Ethernet |