CS31 Bus Connections

CS31 Bus is connected with terminals 1.0 to 1.7 and 2.0 to 2.7 through the Terminal Unit. The end-of-line resistor can also be activated by using external wire jumpers.

The following pictures describe the different possibilities of connecting CS31 Buses to the CI590-CS31-HA:

Option 1: Electrical connection of CS31 Bus A with CI590-CS31-HA located at the Bus end.

CI590-03

*1) Connection between the bus lines is located inside the Terminal Unit.

*2) Termination resistors are located in the Terminal Unit TU551-CS31/TU552-CS31.

Option 2: Electrical connection of CS31 Bus A with CI590-CS31-HA located in the middle of the Bus.

CI590-04

*1) Connection between the bus lines is located inside the Terminal Unit.

*2) Termination resistors are located in the Terminal Unit TU551-CS31/TU552-CS31.

Option 3: Electrical connection of CS31 Bus B with CI590-CS31-HA located at the Bus end.

CI590-05

*1) Connection between the bus lines is located inside the CI590-CS31-HA module.

*2) Termination resistors are located in the CI590-CS31-HA module.

Option 4: Electrical connection of CS31 Bus B with CI590-CS31-HA located in the middle of the Bus.

CI590-06

*1) Connection between the bus lines is located inside the CI590-CS31-HA module.

*2) Termination resistors are located in the CI590-CS31-HA module.