Proline Promass 83E/F/O Modbus RS485 Operating Instructions

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OperationProline Promass 83 Modbus RS485Scan listNo.Modbus configurationRegister address(data type = Integer)Configuration vialocal operation / configuration program(BASIC FUNCTION Modbus RS485 )13 5013 SCAN LIST REG. 1314 5014 SCAN LIST REG. 1415 5015 SCAN LIST REG. 1516 5016 SCAN LIST REG. 16Access to data via ModbusThe Modbus master uses the register addresses 5051 to 5081 to access the data area of the autoscanbuffer. This data area contains the values of the device parameters defined in the scan list. Forexample, if the register 2007 was entered for mass flow in the scan list by means of the SCAN LISTREG. 1 function, the master can read out the current measured value of the mass flow inregister 5051.Data areaParameter value/Measured valuesAccess via Modbusregister addressData type *Access**Value of scan list entry No. 1 5051 Integer / Float Read / WriteValue of scan list entry No. 2 5053 Integer / Float Read / WriteValue of scan list entry No. 3 5055 Integer / Float Read / WriteValue of scan list entry No. 4 5057 Integer / Float Read / WriteValue of scan list entry No. 5 5059 Integer / Float Read / WriteValue of scan list entry No. 6 5061 Integer / Float Read / WriteValue of scan list entry No. 7 5063 Integer / Float Read / WriteValue of scan list entry No. 8 5065 Integer / Float Read / WriteValue of scan list entry No. 9 5067 Integer / Float Read / WriteValue of scan list entry No. 10 5069 Integer / Float Read / WriteValue of scan list entry No. 11 5071 Integer / Float Read / WriteValue of scan list entry No. 12 5073 Integer / Float Read / WriteValue of scan list entry No. 13 5075 Integer / Float Read / WriteValue of scan list entry No. 14 5077 Integer / Float Read / WriteValue of scan list entry No. 15 5079 Integer / Float Read / WriteValue of scan list entry No. 16 5081 Integer / Float Read / Write* The data type depends on the device parameter entered in the scan list** The data access depends on the device parameter entered in the scan list. If the device parameter entered supportsread and write access, the parameter can also be accessed by means of the data area.Page 50 • MN0M030Issue/Rev. 0.2 (12/12)
Proline Promass 83 Modbus RS485OperationResponse time!Note!The response time when accessing the data area (register addresses 5051 to 5081) is typicallybetween 3 and 5 ms.It may take longer for a command to be executed in the device. The data is not updated until thecommand has been executed. Especially write commands are affected by this!ExampleThe following device parameters should be grouped via the auto-scan buffer and read out by themaster with just one request telegram:• Mass flow Register address 2007•Temperature Register address 2017• Totalizer 1 Register address 2610• Actual system condition Register address 68591. Configuration of the scan list• With the local operation or a configuration program (via the function matrix):BASIC FUNCTION block Modbus RS485 function group SCAN LIST REG. function Entry of the address 2007 under SCAN LIST REG. 1 Entry of the address 2017 under SCAN LIST REG. 2 Entry of the address 2610 under SCAN LIST REG. 3 Entry of the address 6859 under SCAN LIST REG. 4• Via the Modbus master (the register addresses of the device parameters are written to the registers5001 to 5004 via Modbus):1. Write address 2007 (mass flow) to register 50012. Write address 2017 (temperature) to register 50023. Write address 2610 (totalizer 1) to register 50034. Write address 6859 (actual system condition) to register 5004Modbus RS485SlaveMasterAutoscan BufferRegisterDataValueValueDataRegisterScan ListNo.1234Register5001500250035004DataRegister2007201726106859Fig. 34:Configuration of the scan list via the Modbus mastera0004406-enIssue/Rev. 0.2 (12/12) MN0M030 • Page 51
Page 1 and 2: Issue/Rev. 0.2 (12/12)Coriolis Mass
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The specifications contained herein
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Proline Promass 83E/F/O Modbus RS485 Operating Instructions

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