beautypg.com

Veris Industries LDRA6 USER GUIDE User Manual

Page 27

background image

User Guide: LDRA6

Appendix A: Modbus Communications

21 970

484-6510

www.rletech.com

A-4

MODBUS MIRRORING


A-4.1 To use the EIA-485 Modbus mirroring feature set the address on the master LDRA6 to address 255
and then set the address on the slave LDRA6 to 1. The Master unit will then repeat (mirror) any zone
alarms that come into the Slave Unit. When using this feature none of the local Alarm/Zone inputs will
work on the Master unit, The Master unit is only a repeater for the single slave unit being used.