Siemens 6ES7144-4PF00-0AB0 SIMATIC ET 200pro EM 4 AI-TC HF Thermocouple Remote I/O Module

The Siemens 6ES7144-4PF00-0AB0 is a SIMATIC ET 200pro High Feature analog input module with 4 thermocouple channels supporting types B, E, J, K, L, N, R, S and T over a +/-80 mV range. It provides internal and external cold-junction compensation and resolves 15 bit plus sign, with AMS 2750 and CQI-9 declarations of conformity.

Technical Specifications

Selection Notes

Nine supported thermocouple types on one module cover most industrial TC wiring without matching a type-specific part at order time, and internal cold-junction compensation removes the need for an external reference junction in most installations - switch to the external compensation socket only where ambient temperature at the terminal block itself drifts enough to bias the reading. The AMS 2750 / CQI-9 declarations matter specifically for heat-treat furnace instrumentation audits; choose the AI-RTD module instead when the sensors are resistance thermometers rather than thermocouples.

Applications

Fits ET 200pro stations reading furnace, oven or exhaust-gas temperature from thermocouples, including heat-treat processes that must document AMS 2750 / CQI-9 pyrometry compliance.