The FM 355-2 closed-loop control module is the intelligent 4-channel temperature control module.

It can be used, for example, in the following sectors:

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

The FM 355-2 is available in two versions:

• FM 355-2 C:
  As a continuous controller with 4 analog outputs for driving analog actuators
• FM 355-2 S:
  As step-action or pulse controller with 8 digital outputs for driving motor-driven (integrating) or binary-driven (electric strip-type heaters and cartridges) actuators.

The FM 355-2 can be used in SIMATIC S7-300 and ET 200M with S7-300/-400 as a DP master.