Black Box Modbus Hardened Serial Server Identical Hard-Coded Slaves, Identical Production Lines

Chapter 6: Application Examples

3. Set up the Slave ID Routing to associate IP addresses with the appropriate Slave ID.

6.4 Identical Hard-Coded Slaves

In this example, two slave devices that are hard-coded with the same ID are required. This is accomplished by putting them on different serial ports.

Serial RS-485

Modbus Hardened

Serial Server

(LES431A)

	ASCII slave	ASCII slave
ASCII Master	ID 5	ID 1

Figure 6-13. Identical hard-coded slaves.

6.5 Identical Production Lines

In this example, identical or backup production lines can be controlled by the same IP Master. This allows the duplicate networks to be configured identically, saving documentation and maintenance time.

IP Master

Ethernet

Serial

Modbus Hardened

Serial Server

(LES431A)

RTU slave	RTU slave
ID 2	ID 3

Figure 6-14. Identical production lines.

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