Modbus Protocol for ION 7500, ION 7600 and ION 8000 series

Modbus Register Configuration (Modbus Slave Module) Modbus Register MapThe Modbus Slave Module is configurable in two ways:ION Registers are ‘linked’ to the modulethe Modbus Slave Module setup is alteredThe first type of configuration is beyond the scope of the Modbus protocol. Themeter comes with a set of default linkages for Modbus Slave Modules that suit awide range of applications.The second type of Modbus Slave Module configuration is accomplished via themeter display, the ION protocol, or the Modbus protocol.The setup registers for the Modbus Slave Modules on the meter are available viaModbus for control and interrogation. See sections Enumerated ION ModuleSetup Registers and Numeric Bounded ION Module Setup Registers of thisdocument for format details of these Modbus registers.Table 5: Setup registers for the Modbus Slave ModuleSETUP REGISTERMODBUS REGISTER(S)MSR1 Format 44596MSR1 BaseAddr 47135 to 47136MSR1 Scaling 44600MSR1 InFull 47151 to 47152MSR1 InZero 47143 to 47144MSR1 OutFull 47167 to 47168MSR1 OutZero 47159 to 47160MSR2 Format 44597MSR2 BaseAddr 47137 to 47138MSR2 Scaling 44601MSR2 InFull 47153 to 47154MSR2 InZero 47145 to 47146MSR2 OutFull 47169 to 47170MSR2 OutZero 47161 to 47162MSR3 Format 44598MSR3 BaseAddr 47139 to 47140MSR3 Scaling 44602MSR3 InFull 47155 to 47156MSR3 InZero 47147 to 47148MSR3 OutFull 47171 to 47172MSR3 OutZero 47163 to 47164MSR4 Format 44599Page 20