Modbus register assignment of the ISOMETER®
52
isoEV425_D00126_09_M_XXEN/03.2019
8.1.2.3 R&U = Range and unit
The units of bits 0 to 4 are coded.
Bits 6 and 7 describe the validity range of a value.
Bit 5 is reserved.
The complete byte is calculated from the sum of the unit and the range of
validity.
Bit 76543210 Description
Unit
- - -00000 Invalid (init)
- - -00001 No unit
- - -00010
- - -00011 A
- - -00100 V
- - -00101 %
- - -00110 Hz
- - -00111 Baud
- - -01000 F
- - -01001 H
- - -01010 °C
- - -01011 °F
- - -01100 Second
- - -01101 Minute
- - -01110 Hour
- - -01111 Day
- - -10000 Month
Range of validity
00XXXXXX Actual value
01XXXXXX The actual value is lower
10XXXXXX The actual value is higher
11XXXXXX Invalid value