GE moisture.IQ, User Manual

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moisture.IQ User’s Manual 127
Appendix D. Modbus Register Map
Appendix D. Modbus Register Map
Note:
The
Modbus Register Map in
Table 13 below has some fields in gray boxes. These are currently not
supported and will return a value of –1.0.
Table 13: Modbus Register Map
Function Parameter
Sub
Parameter ID
Modbus
Address Type Access
Modbus
Request
Qty. of
Registers Notes
0 Error register,
non-latching.
Read only.
0 0 32-bit Integer RO Read Input
(0x04)
2
1000 Latching Error
Register
0 1000 32-bit Integer RW Read
Holding
(0x03)
2 Write 0 to clear
2000 Analog Output
(4-20)
0
Channel 1 /
Output A
Output
(percent of
scale)
100 2112 32-bit float RW Read
Holding
(0x03)
2 When TEST MODE
enabled, force
output to value
State 102 2102 32-bit Integer RW Read
Holding
(0x03)
2 2 = TEST MODE
All else = run mode
Units 104 2104 32-bit Integer RW Read
Holding
(0x03)
2 Measurement/Unit
Code --- 0 = off,
others see tab
Type 106 2106 32-bit Integer RW Read
Holding
(0x03)
2 1 = 4-20 mA,
2 = 0-20 mA,
3 = 0-2 volts
Zero 108 2108 32-bit float RW Read
Holding
(0x03)
2
Span 110 2110 32-bit float RW Read
Holding
(0x03)
2
Channel 1 /
Output B
Output
(percent of
scale)
120 2132 32-bit float RW Read
Holding
(0x03)
2 When TEST MODE
enabled, force
output to value
State 122 2122 32-bit Integer RW Read
Holding
(0x03)
2 2 = TEST MODE,
All else = run mode
Units 124 2124 32-bit Integer RW Read
Holding
(0x03)
2 Measurement/Unit
Code --- 0 = off,
others see tab
Type 126 2126 32-bit Integer RW Read
Holding
(0x03)
2 1 = 4-20 mA,
2 = 0-20 mA,
3 = 0-2 volts
Zero 128 2128 32-bit float RW Read
Holding
(0x03)
2
Span 130 2130 32-bit float RW Read
Holding
(0x03)
2