Hamilton Electronics EPHUM011 - Manual (Page 29)

pH ARC Sensors Modbus RTU Programmer ’ s Manual (EPHUM011)
624300/01 page 29 / 67
2.6.2.3 Reading all Values for PA9
By reading register 3370, the active physical unit of measurement, the selected value, and the min and
max values can be read.
Start
register Number of
registers Reg1 /
Reg2 Reg3 /
Reg4 Reg5 /
Reg6 Reg7 /
Reg8 Modbus
function
code Read
access Write
access
3370 8 Physical
unit Current
value Min
value Max
value 3, 4 U/A/S none
Figure 2.6.2.3.1: Definition of register 3370.
Command: Moving average Modbus address: 3370 Length: 8 Type: 3
Read
Parameter: Unit Value Min value Max value
Format: Hex Decimal Decimal Decimal
Value:
0x01 10 1 16
Figure 2.6.2.3.2: Example to read PA9. The physical unit is 0x01 ( “ none ” ), the value is 10 and the limit
is 1 to 16.