Yokogawa Electric Corporation ADM12C-S2 Digital Input Module

The Yokogawa ADM12C-S2 Digital Input Module provides 32 discrete ON/OFF inputs for real-time digital signal acquisition from field devices, designed for installation in Yokogawa CENTUM DCS cabinets and other control-panel applications. It accepts contact-type inputs (ON/OFF signal detection) from switches, relays, and similar devices, converting them to digital data for process control with a 5 VDC input rating and a minimum 20 mA per channel; signal isolation is common minus shared per 16 channels, with a minimum pulse width of 40 ms and a pulse frequency up to about 10 Hz, and it draws approximately 600 mA at 5 VDC in a rack-mounted DCS I/O system. The ADM12C-S2 is a discontinued/legacy module, with common replacements including Yokogawa ADV159, ADV169, and ADM11C Digital Input Modules.