Bender ISOMETER isoMIL425HV Manual page 5

Table of Contents
7. Data access using the Modbus RTU protocol ........................................... 40
7.1 Reading out the Modbus register from the ISOMETER® ................. 40
7.1.1 Command of the master to the ISOMETER® ........................................ 40
7.1.2 The ISOMETER® answers the master ...................................................... 41
7.2 Writing the Modbus register (parameter setting) ............................. 41
7.2.1 Command of the master to the ISOMETER® ........................................ 41
7.2.2 The ISOMETER® answers the master ...................................................... 42
7.3 Exception code ............................................................................................... 42
7.3.1 Structure of the exception code .............................................................. 42
8. Modbus register assignment of the ISOMETER® ...................................... 43
8.1 Device-specific data type of the ISOMETER® ....................................... 49
8.1.1 Device name ................................................................................................... 49
8.1.2 Measured values ............................................................................................ 49
8.1.2.1 Float = Floating point value of the channels .............................. 50
8.1.2.2 AT&T = Alarm type and test type (internal/external) .............. 51
8.1.2.3 R&U = Range and unit ......................................................................... 52
8.1.3 Alarm assignment of the relays ................................................................ 53
8.2 Channel descriptions ................................................................................... 54
9. IsoData data string ........................................................................................ 56
10. Technical data .............................................................................................. 58
10.1 Tabular representation ................................................................................ 58
10.2 Standards, approvals and certifications ................................................ 64
10.3 Ordering details ............................................................................................. 65
10.4 Revision history .............................................................................................. 65
isoMIL425HV_D00204_05_M_XXEN/02.2021
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