Configuration of the Slave Modules

A maximum of 31 modules (slaves) can be connected to the CS31 Bus. For a module containing digital and analog expansions, 2 modules are registered on the CS31 Bus.

The configuration is described using the Digital Input Module 07DI92 as an example. Once the module is inserted, the inputs and outputs of the module are available. In the Module parameters window, set the Module address to the module’s hardware address (this is the address defined at the module with DIL switches).

Note

For AC31 CPUs used as CS31 slave, the address is set via software.

The module address has to be set for all modules connected to the CS31 Bus.

Note

There is no fix connection between module address and the input/output addresses of the channels. The input/output addresses are assigned automatically and change when inserting new modules.

The module address settings must follow these rules:

• Set an unique address for each module.
• It is not recommended to use the same address for a digital and an analog module.
• If the same module address is set for a digital input module and a digital output module, only the first module in the PLC configuration is detected. This also applies to analog modules!
• DIL switch 8 (used to allocate the channels 8…15 for series 90) is ignored as all inputs/outputs are byte-oriented.
• In case of expandable CS31 Modules, the maximum configurations have to be observed.

Input/output modules connected to COM1 use the following I/O area:

COM1: %IB1000 .. %IB1999 or %QB1000 .. %QB1999

Further parameters and settings for the CS31 modules are optional and can be found in the descriptions for the individual modules.

For further information refer to hardware documentation of S500 I/O Modules and 907 AC 1131 documentation.