Modbus data acquisition and signal converters

Modbus RS485 or RS422 data acquisition modules with analog interfaces and analog interfaces with Programmable Threshold Outputs. The inputs can be Voltage (V), Current (I), Thermocouple or PT100 with or without optical isolation. Programmable PID controllers with analog and digital I/O and signal coverters with PT100/500/1000, thermocouple, potentiometer, mA and mV input and 4-20mA output. The communicatio protocol is Modbus ASCII or RTU). The Modbus address (1 to 31) can be set through micro-switches. The modules can be mounted on DIN-rail.