Document #10-32813 Rev A; June 07, 2019 Page 50 of 69Register Bus Segment Zone Class Instance Member Refresh Count --1000 1 0 0 36 1 19 0 RTC 1 TimestampUse these setup keys to configure Modbus® RTU.Key Value Feature DefinitionModbusRtu6 nor:\Gateway\ModbusRtu6.csv Modbus®RTUThis is only available if the model number is RMAP-2XXX-XXXX.Full file name / path where the Modbus® RTU 6 field bus gatewayfile lives. This file associates Modbus® RTU registers with datapoints from any of the 3 remaining busses when Modbus® RTU 6 isconfigured as a slave.Setup Key: Modbus® RTU6Key Value Feature DefinitionModbusRtu7 nor:\Gateway\ModbusRtu7.csv Modbus®RTUThis is only available if the model number is RMAP-2XXX-XXXX.Full file name / path where the Modbus® RTU 7 field bus gatewayfile lives. This file associates Modbus® RTU registers with datapoints from any of the three remaining busses when Modbus® RTU7 is configured as a slave.Setup Key: Modbus® RTU7Key Values Feature DefinitionRtuFc6 0 (FALSE) = Masteruses FunctionCode 16 exclus-ively1 (TRUE) = Masteruses FunctionCode 6 for singleregister writesModbus®RTU Func-tion Code6This is only available for model number RMAP-2XXX-XXXX.This is used to enable Modbus® RTU Function Code 6 (Write Single Register) onmaster channels for devices that do not implement Modbus® Function Code 16(Write Multiple Registers). It is only necessary if the RMA PLUS does not negotiatethis requirement on its own.This record is not a member of the default file, and therefore, the feature is disabled.To enable the feature, you must add this record to the setup file.Setup Key: RTU Fc6Testing Modbus® RTU CommunicationsTo perform test read / write operations on the data you may use the Modbus® RTU test program included on the MICROSD drive (sd:\Software\Modbus® RTU). In the following example, the RMA PLUS’s Hardware ID (32-bit Integer) isreturned for registers 0, 1. Registers 2 and 3 were not specified so they return 0s.