Introduction
The Yokogawa ADM12‑S4 PC Board PLC / Additional Board is an industrial‑grade peripheral expansion board designed to extend the discrete input capability of Yokogawa programmable logic controllers (PLCs) and modular automation systems. As a versatile contact input interface board, it provides reliable capture of contact closure signals from field devices and integrates seamlessly into control racks or PLC backplanes. Engineered for rugged automation environments, the ADM12‑S4 delivers consistent performance, high input density, and robust signal conditioning essential for complex logic and monitoring applications.
Technical Specifications
| Specification | Details |
|---|---|
| Model | ADM12‑S4 |
| Product Type | PC Board / Additional Contact Input Board |
| Manufacturer | Yokogawa |
| System Compatibility | Yokogawa PLCs and modular automation platforms |
| Function | Discrete contact input expansion |
| Number of Input Channels | Typically 16 contact input channels |
| Input Signal Type | Dry contact closure, on/off digital signals |
| Input Logic | Contact closure detection |
| Isolation | Channel‑to‑board electrical isolation |
| Response Time | Millisecond‑class switching detection |
| Mounting | Plug‑in board, rack or backplane insertion |
| Operating Temperature | Industrial operating range |
| Weight | Approx. 0.1 kg |
| Dimensions | Standard board form factor for Yokogawa racks |
A DCS Q Co., Ltd. - PLC and DCS Industrial Control Equipment Wholesale


