OMRON C500-PS222 PID Module High-Performance Temperature Control for Industrial Automation main product image

OMRON C500-PS222 PID Module High-Performance Temperature Control for Industrial Automation product photo

C500 Series PLC

OMRON C500-PS222 PID Module High-Performance Temperature Control for Industrial Automation

Omron PID Module C500-PS222

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Brand Omron

Model C500-PS222

$135.00

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OMRON PID Module C500-PS222

I/O points: 1 input, 1 output

I/O signal range: 1-5V, 4-20mA

Resolution: 1/4096

Accepts analog input signals and performs suitable PID control for various controllers.

PID adjustment is a commonly used method in closed-loop control systems.

Large and medium-sized PLCs have PID modules, and many small PLC controllers now also feature this function.

PID processing typically runs dedicated PID subroutines.

Process control is widely applied in fields such as metallurgy, chemical engineering, heat treatment, and boiler control.

### Extended Introduction to the Omron C500-PS222 PID Module

The Omron C500-PS222 is a dedicated PID control module designed for use in大中型 programmable logic controller (PLC) systems, such as the Omron C500 series. It features a single analog input and a single analog output, making it ideal for simple, single-loop control applications. The input and output signal ranges are compatible with standard industrial instrumentation: 1–5V DC for voltage signals and 4–20mA for current signals, both of which are widely used in process automation for noise immunity and long-distance transmission.

With a resolution of 1/4096 (12-bit), the module provides fine granularity for accurate measurement and control. This high resolution ensures that even small changes in the process variable are detected and responded to appropriately, which is critical for precise regulation in systems such as temperature, pressure, flow, and level control.

The C500-PS222 operates by acquiring analog input signals from sensors or transmitters, then processing them through a built-in PID (Proportional-Integral-Derivative) algorithm. PID control is one of the most widely used feedback control methods in closed-loop systems, offering a balance of stability, responsiveness, and steady-state accuracy. The module is designed to perform PID calculations autonomously, offloading the main PLC CPU from real-time control tasks, which enhances overall system performance and reliability.

PID control is particularly suited for processes that require continuous regulation, such as those found in the metallurgical industry, chemical processing, heat treatment furnaces, and boiler control systems. In these environments, maintaining a setpoint with minimal overshoot and oscillation is essential for product quality, energy efficiency, and safety.

While the C500-PS222 is a hardware module for larger PLCs, modern small and medium-sized PLCs often integrate PID functionality as a software function block or subroutine. This trend reflects the growing demand for precise process control in compact and cost-effective automation systems. Regardless of implementation, the PID algorithm remains a cornerstone of industrial process control, enabling stable and adaptive regulation across a wide range of applications.