The PT8TCS module is a 8 isolated thermocouple input module. The module uses differential inputs to reduce effects of electrical noise and mains pickup. The thermocouple inputs are isolated from the logic and from each other.

The thermocouple voltage is read by the module circuitry, linearised and converted to degrees Centigrade. No ranging is required as the module covers the full range as indicated in the TC table. The value that is read from the Modbus register is the actual temperature in degrees centigrade to 0.1°C resolution. ie: a value of 3451 corresponds to a temperature of 345.1°C.

The module has built in Cold Junction Compensation. Use must be made of the correct thermocouple extension wire to avoid reading errors.

The thermocouple module can also be configured for a 0 – 50mV input range. The TC Type register must be set to 9 for this option. The value in the register which is read back over the network is 0 – 50,000.

PROMUX TCP/IP I/O Modules)

PROMUX TCP is an innovative modular I/O system which provides a simple solution for distributed I/O requirements.

The PROMUX TCP system consists of stand-alone Digital and Analog Input and Output modules which are connected together on an ETHERNET 10/100Base-T network using the MODBUS TCP protocol.

The PROMUX TCP modules also have built in web servers. This enables configuration and diagnostic data to be accessed via a standard web browser.

All PROMUX TCP modules plug directly onto an industry standard DIN rail. All modules have isolation between the field and logic.

 

Input	8 x Isolated Thermocouple Inputs
TC Types	J,K,E,T,N,B,S,R,mV,C,D and G
Resolution	0.1 Deg.C
Sample rate	0.63 samples/sec
Drift	100 ppm/Deg.C typ.
Isolation (Field & Logic)	1500VAC RMS
Isolation (Inter Channel)	350VAC (Pk to Pk)