Bender ISOMETER isoHV425 Manual page 4

4. Mounting, connection and commissioning .....................................20
4.1 Mounting ............................................................................................................ 20
4.2 Wiring diagram ................................................................................................. 22
4.2.1 Connection isoHV425-D4-4 ......................................................................... 22
4.2.2 Connection isoHV425W-D4M-4 with analogue interface: ................ 23
4.3 Commissioning ................................................................................................ 25
5. Operation ................................................................................................26
5.1 Display elements ............................................................................................. 27
5.2 Menu overview ................................................................................................. 28
5.3 "AL" menu - response value setting ........................................................ 29
5.4 "out" menu ......................................................................................................... 29
5.4.1 Configuration of the relay operating mode ........................................... 29
5.4.2 Relay signalling assignment "r1" and "r2" and LED assignment ..... 30
5.4.3 Fault memory configuration ...................................................................... 30
5.4.4 Interface configuration (isoHV425-D4-4) ............................................... 31
5.4.5 Analogue output (isoHV425-D4M-4) ........................................................ 31
5.5 "t" menu - time configuration ................................................................... 32
5.6 "SEt" menu - function configuration ........................................................ 32
5.7 Measured value display and history memory ....................................... 33
6. BMS protocol (isoHV425-D4-4) ...........................................................34
7. Modbus RTU protocol (isoHV425-D4-4) ............................................35
7.1 Reading out the Modbus register from the ISOMETER® .................... 35
7.1.1 The master sends a command to the ISOMETER® ............................... 35
7.1.2 The ISOMETER® answers the master ......................................................... 35
7.2 Writing to Modbus registers (parameter setting) ................................ 35
7.2.1 The master sends a command to the ISOMETER® ............................... 36
7.2.2 The ISOMETER® answers the master ......................................................... 36
7.3 Exception code ................................................................................................. 36
7.4 Modbus register assignment ...................................................................... 37
7.5 Device-specific data types ............................................................................ 40
7.5.1 Device name ...................................................................................................... 40
7.5.2 Measured values .............................................................................................. 40
7.5.3 Alarm assignment of the relays .................................................................. 43
7.5.4 Channel descriptions ..................................................................................... 44
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Table of contents
isoHV425_D00082_03_M_XXEN/05.2020