Troubleshooting Guide - Astralpool MULTI-PARAMETRIC INSTRUMENT Manuel D'installation

4.6 ModBus RTU protocol
The list of commands for data transmission using the RS485 RTU Serial Port is found below
> Read Holding Register
> Write Multiple Register
> Report Slave ID
In response to the "Report Slave ID" command, the system returns the following string:
"Device"+ Firmware code + Edition
ModBus profile table Address
Description Property
1000 pH Measure
1001 Cl Measure
1002 Orp Measure
1003 Temperature Measure
1004 Frequency Measure
1005 Conductivity Measure
1006 Pot1 Measure
1007 Pot2 Measure
1008 Status
1100 SetPoint pH
1101 SetPoint Cl
1102 SetPoint Orp
1103 SetPoint Temperature
Note1: STATUS (bit field 16 bit register)
1 LEVEL_0_ALARM
2 LEVEL_1_ALARM
3 HOLD_ALARM
4 REED_ALARM
5 Reserved
6 Reserved
7 Reserved
8 Reserved
9 Reserved
10 Reserved
11 Reserved
12 Reserved
13 STAT (Wieving statistics Mode)
14 Reserved
15 OFA (Over Feed Alarm)
16 PERMANENCY (Permanency Alarm)
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TROUBLESHOOTING GUIDE

•
The device does not turn on
o
Check that the power cables are properly connected
o
Verify that the mains electrical power is functioning
•
The display does not light up
Range
Read 0 to 1400
Read 0 to 500
Read -2000 to +2000
Read 0 to 1050
Read 5 to 15000
Read 0 to 10000
Read 0 to 20000
Read 0 to 20000
Read See Note 1
Read/Write 0 to 1400
Read/Write 0 to 500
Read/Write -2000 to +2000
Read/Write 0 to 1050
0000137242 Rev.3.1
Operating state
Full Operating
Full Operating
Full Operating
Full Operating
Readable but not active
Readable but not active
Readable but not active
Readable but not active
Full Operating
Full Operating
Full Operating
Full Operating
Full Operating
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