WAGO-I/O-SYSTEM 750
Commissioning
65
750-451 8 AI RTD
Manual
Version 1.1.0
Register
Function
Memory
Access
Default setting
35
Channel configuration
EEPROM
R/W
0xFF10
Bit 11: Diagnosis, user limiting value overrange
0
Diagnostics disabled
1*
Diagnostics enabled
Bit 12: Diagnosis, short circuit
0
Diagnostics disabled
1*
Diagnostics enabled
Bit 13: Diagnosis, wire break
0
Diagnostics disabled
1*
Diagnostics enabled
Bit 14: Group error
0
Diagnostics disabled
1*
Diagnostics enabled
Bit 15: Global enable and disable diagnostic functions
0
Diagnostics disabled
1*
Diagnostics enabled
*)
Default setting
Table 49: Register 36
Register
Function
Memory
Access
Default setting
36
Line resistance
EEPROM
R/W
0x0000
Bit 0 … 15: Line resistance
0 … 65535 Value range (raw), decimal, 16-bit unsigned integer
0 … FFFF
Value range (raw), hexadecimal, 16-bit unsigned integer
0 … 65.535 Value range (scaled), decimal, 16-bit unsigned integer
Resolution:
1/1000
Unit
Ohm
Equation:
R = R(raw) – Reg37
Table 50: Register 37
Register
Function
Memory
Access
Default setting
37
User calibration
Offset
EEPROM
R/W
0x0000
Bit 0 … 15: User scaling Offset
–32768 … 32767
Value range (raw), decimal, 16-bit integer
8000 … 7FFF
Value range (raw), hexadecimal, 16-bit integer
–262144 … 262136
Value range (scaled), decimal, 16-bit integer
FFFC0000 … 03FFF8 Value range (scaled), hexadecimal, 16-bit integer
Resolution:
8
Unit
–
Equation:
Raw value(corr) =
((raw value(ADC) × Reg38) / 32768) × (Reg37 × 8)
The user calibration is enabled if bit 6 in register 35 is not set.