The FM 455 closed-loop control module is the intelligent 16-channel closed-loop control module for universal closed-loop control tasks.

It may be used for

• Temperature control
• Pressure control
• Flow control
• Level control

in the following areas:

• General mechanical engineering
• Plant building
• Industrial furnaces
• Cooling and heating apparatus
• Food and drinks industry
• Rubber and plastics machines
• Chemical and process industries
• Glass and ceramics
• Wood and paper industry.

The FM 455 is offered in two versions:

• FM 455 C as a continuous-action controller with 16 analog outputs for controlling analog actuators
• FM 455 S as step or pulse controller with 32 digital outputs for controlling motorized (integrating) actuators or binary-controlled actuators (e.g., electrical strip heaters and tube heaters)

The FM 455 can be used in the SIMATIC S7-400.