If a central controller cannot be used in a mobile machine, decentralized input/output modules are employed. A decentralized structure enables installation of the electronics at the requested machine positions. Due to module networking via the powerful CAN network with the CANopen protocol for mobile use the application can be quickly implemented.

The metal CompactModules are fitted with M12 connectors which are widely used in industry. An extensive line of connection cables allows direct, easy and reliable connection of sensors and actuators. The bit-rate and node number are directly set via CANopen commands or by means of integrated code switches in the terminal chamber. For networking the CAN interface via wired drop cables M12 connections and terminating resistors are available. Parameter setting of the inputs and outputs enables use in different applications.

Due to the high protection rating the modules can be directly used in areas with dirt and splashing water.
The compact modules are designed specifically for the requirements of these applications and provide the following features:

• Housing: diecast zinc
• High mechanical stability due to full potting of the housing
• High protection rating IP67
• Power supply 10 V_DC to 32 V_DC
• Switching current: 2/4 A
• The functions of inputs and outputs (binary/analog) can be configured
• Hydraulic valves can be triggered directiy (closed-loop control)
• Parameterizable PWM outputs
• High noise immunity
• M12 sockets
• CE, e1, approval for railway applications (EN 50155)

CompactModule metal, CR2031

• 8 digital outputs (4 A), can also be configured as:
  PWM output
  Output with current measurement

Compact Module metal, CR2032

• 4 digital inputs
• 4 analog inputs, can be configured as:
  Analog input, voltage
  Analog input, current
• 8 digital outputs (2 A), can also be configured as:
  PWM output

CompactModule metal, CR2033

• 4 digital inputs
• 4 analog inputs, can be configured as:
  Analog input, voltage
  Analog input, current
• 4 digital outputs (4 A), can also be configured as:
  PWM output