ProSoft Technology BM-1000-PM1K - Manual (Page 20)

Installation
Page 20 of 36 ProSoft Technology, Inc.
June 10, 2015
4.3 RS485 Daisy-Chain Diagram
1. If more I/O Modules are required, another RS485 I/O Expansion Module (Kit) set
can be deployed simply using the daisy-chain method.
2. The System holds up to 16 I/O Module Slave addresses regardless of the number
of RS485 I/O Expansion Modules deployed.
3. Each Module must be set to a unique Modbus Slave address.