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WAGO-I/O-SYSTEM 750
750-451 8 AI RTD
Table 21: Status Byte
Bit 7
Reg_Com
Reg_Com
Err_G
Wire Break
Short Circuit
User Overrange
User
Underrange
Overrange
Underrange
No short-circuit detection for resistance measurements!
For sensor types "Resistance measurement 1" and "Resistance measurement 2",
short-circuit detection is not technically possible.
Status byte CH1_S0, byte 0
Bit 6
Bit 5
Bit 4
Err_G
Wire
Short
Break
Circuit
This bit indicates which communication mode is enabled.
0:
Process data communication is enabled.
1:
Register communication is enabled.
This bit generally indicates whether an underrange, overrange, short circuit or
wire break has been detected.
0:
No error present.
1:
General error present (see section "Diagnostics").
This bit indicates whether a wire break has been detected.
0:
No wire break present.
1:
Wire break present.
This bit indicates whether the corrected raw value falls below the limiting value
for short circuit detection or whether the ADC reports a reference voltage error.
0:
No short circuit present.
1:
Short circuit present.
This bit indicates whether the limiting value specified by the user exceeds the
calculated resistance or temperature value.
0:
Limiting value not overrange.
1:
Limiting value overrange.
This bit indicates whether the limiting value specified by the user falls below the
calculated resistance or temperature value.
0:
Limiting value not underrange.
1:
Limiting value underrange.
This bit indicates whether the calculated resistance or temperature value
exceeds the measuring range set.
0:
Range not exceeded.
1:
Range exceeded.
This bit indicates whether the calculated resistance or temperature value falls
below the measuring range set.
0:
There is no underrange.
1:
There is an underrange.
Process Image
Bit 3
Bit 2
User
User
Overrang
Underrange
e
31
Bit 1
Bit 0
Overrang
Underrange
e
Manual
Version 1.2.0
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