Siemens 6ES7455-0VS00-0AE0 SIMATIC S7-400 FM 455 C 16-Channel Closed-Loop Control Module

The Siemens 6ES7455-0VS00-0AE0 is a SIMATIC S7-400 FM 455 C control module for continuous closed-loop control, with 16 built-in closed-loop controllers, 16 analog inputs (8 with Pt100 or 4-wire connection), 16 digital inputs, and 16 analog outputs on one module. It parameterizes each channel's PID control, accepts voltage, current, thermocouple, or Pt100 input signals, and drives 16 analog output channels without involving the S7-400 CPU in the control loop.

Technical Specifications

Selection Notes

The FM 455 C carries 16 independent closed-loop controllers on one module, so it fits racks running many parallel PID loops (temperature, pressure, flow) without dedicating separate analog I/O modules and CPU cycle time to each loop. Choose the 8-channel Pt100/4-wire mode over the 16-channel thermocouple/2-wire mode when the loop needs the added accuracy of 4-wire resistance measurement, since the module trades channel count for measurement mode.

Applications

Sixteen onboard PID controllers combined with matching analog and digital I/O suit continuous process control - furnace zones, extruder barrels, or reactor temperature loops - run directly from the FM 455 C without offloading control logic to the S7-400 CPU.