Overview

The Automation & Electronics STCP was designed to provide thermocouple input expansion capability for Programmable Logic Controllers (PLCs). With a low power requirement and a wide operating temperature range, the STCP is ideal for use in remote 120 V_AC, 24 V_DC, or solar powered distributed I/O systems. It can also be used as a stand-alone MODBUS thermocouple input module.

The STCP is a microprocessor based 8 channel thermocouple input card. The microprocessor control gives the STCP the ability to perform calibration correction and digital signal filtering of the inputs. Input calibrations are easily performed using the on-board software.

The data highway is implemented using the built in RS-485 serial port. All of the Smart Card series can be daisy chained together using these serial ports. Each Smart Card responds to MODBUS polls or commands from a master. An onboard address selector switch allows each card to be easily configured for any MODBUS address. This RS-485 data highway can then be used to create a scalable, flexible input / output expansion array.

Features

Thermocouple input value backup (24 hour via onboard capacitor)
MODBUS RTU protocol
Onboard address switch (0-255)
Four onboard option switches
Two RJ45 jacks for RS-485 serial data
Selectable RS-485 termination
Expansion connector for our P-type piggyback modules