pH ARC SensorsModbus RTU Programmer’s Manual (EPHUM011)
624300/01 page 59/ 67
2.8.3 Warnings
A“Warning”is a notification message which still allows further functioning ofthe system. This message
alerts the operatorof a possible problem that could lead to uncertain results.
2.8.3.1 Currently ActiveWarnings
The currently activewarnings are stored in register 4736.
Start
register Number of
registers Reg1/
Reg2 Reg3/
Reg4 Reg5/
Reg6 Reg7/
Reg8 Modbus
function
code
Read
access Write
access
4736 8 Active
warning
measure-
ment
(bitwise
defined)
Active
warning
calibration
(bitwise
defined)
Active
warning
interface
(bitwise
defined)
Active
warning
hardware
(bitwise
defined)
3, 4 U/A/S none
Figure 2.8.3.1.1: Definitionof register 4736 (see chapter 2.8.3.3)
Command: Active warning Modbusaddress: 4736 Length: 8Type: 3Read
Parameter: WMeasurement W Calibration W Interface W Hardware
Format: Hex Hex Hex Hex
Value: 0x00 0x00 0x00 0x00
Figure 2.8.3.1.2: Examplet o read the currently active warnings.
2.8.3.2 History of Warnings
The history of warningsi s not implementedi npH ARCSensors.
2.8.3.3 Definitiono f Warnings
Bit # Hex Description
not available
Figure 2.8.3.3.1:Definition of warnings “measurement”. Nonei s defined.
Bit # Hex Description
0 (LSB) 0x0001 PMC1 (pH) calibration recommended
1 0x0002 PMC1 (pH) last calibration not successful
Figure 2.8.3.3.2:Definition of warnings “calibration”.
Bit # Hex Description
not available
Figure 2.8.3.3.3:Definition of warnings “interface”. None is defined.
Bit # Hex Description
not available
Figure 2.8.3.3.4:Definition of warnings “hardware”.No ne is defined.