Appendix D. Modbus Register Map - GE moisture.IQ User Manual

Appendix D.
Note: The Modbus Register Map in Table 13 below has some fields in grey boxes. These are currently not supported
and will return a value of –1.0.
Function Parameter
0 Error register,
non-latching.
Read only.
1000 Latching Error
Register
2000 Analog Output
(4-20)
Channel 1 /
Output A
Channel 1 /
Output B
moisture.IQ User's Guide
Modbus Register Map
Table 13: Modbus Register Map
Sub Parameter ID ModBus
Address
0
0
0
Output (percent 100
of scale)
State 102
Units 104
Type 106
Zero 108
Span 110
Output (percent 120
of scale)
State 122
Units 124
Type 126
Zero 128
Span 130
Type Access Modbus
0 32-bit Integer RO
1000 32-bit Integer RW
2112 32-bit float RW
2102 32-bit Integer RW
2104 32-bit Integer RW
2106 32-bit Integer RW
2108 32-bit float RW
2110 32-bit float RW
2132 32-bit float RW
2122 32-bit Integer RW
2124 32-bit Integer RW
2126 32-bit Integer RW
2128 32-bit float RW
2130 32-bit float RW

Appendix D. Modbus Register Map

Qty. of Notes
Request Registers
Read Input 2
(0x04)
Read Holding 2 Write 0 to clear
(0x03)
Read Holding 2 When TEST MODE
(0x03) enabled, force output
to value
Read Holding 2 2 = TEST MODE
(0x03) All else = run mode
Read Holding 2 Measurement/Unit
(0x03) Code --- 0 = off,
others see tab
Read Holding 2 1 = 4-20 mA,
(0x03) 2 = 0-20 mA,
3 = 0-2 volts
Read Holding 2
(0x03)
Read Holding 2
(0x03)
Read Holding 2 When TEST MODE
(0x03) enabled, force output
to value
Read Holding 2 2 = TEST MODE,
(0x03) All else = run mode
Read Holding 2 Measurement/Unit
(0x03) Code --- 0 = off,
others see tab
Read Holding 2 1 = 4-20 mA,
(0x03) 2 = 0-20 mA,
3 = 0-2 volts
Read Holding 2
(0x03)
Read Holding 2
(0x03)
125