Master/Slaves Message Routing; Forward Broadcasts From Master Option - Pepperl+Fuchs ICDM-RX/MOD Manual

ICDM-RX/MOD User Manual
Overview
The following diagram demonstrates the To-Master/Slaves mode compared to the To-Master and To-Slaves
modes.

1.8.1. Master/Slaves Message Routing

On a serial port configured to Master/Slaves, only the master on the private serial bus has access to the serial
slaves on that serial bus. However, the master can also communicate to public devices and shared memory
anywhere on the Modbus network.
The Serial Interface Configuration web page contains two configuration settings that determine how the serial
bus routing is controlled.

1.8.1.1. Forward Broadcasts From Master Option

If this option is selected, all broadcast messages received on this port will be forwarded to the Modbus network.
If this option is not selected, all broadcast messages received on this serial port will be dropped and only the
private slave devices will receive them.
Note: Make sure that broadcasts should be forwarded before selecting this option. If this option is selected, all
public slave devices on the local Modbus network will receive the broadcast messages and that may
cause unpredictable results.
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