Hamilton Electronics EPHUM011 - Manual (Page 59)

pH ARC Sensors Modbus 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 of the system. This message
alerts the operator of a possible problem that could lead to uncertain results.
2.8.3.1 Currently Active Warnings
The currently active warnings 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: Definition of register 4736 (see chapter 2.8.3.3)
Command: Active warning Modbus address: 4736 Length: 8 Type: 3
Read
Parameter: W Measurement W Calibration W Interface W Hardware
Format: Hex Hex Hex Hex
Value: 0x00 0x00 0x00 0x00
Figure 2.8.3.1.2: Example to read the currently active warnings.
2.8.3.2 History of Warnings
The history of warnings is not implemented in pH ARC Sensors.
2.8.3.3 Definition of Warnings
Bit # Hex Description
not available
Figure 2.8.3.3.1: Definition of warnings “ measurement ” . None is 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 ” . None is defined.