WAGO-I/O-SYSTEM 750
750-464 2/4 AI RTD configurable
Table 22: Status byte S1
Bit 7
Reg_Com
Underrange
Overrange
Bit 6
Bit 5
General
Wire
Error
Break
Underrange
Ptxxx, Nixxx (all versions 750-464/xxx-xxx)
NTCxxk (only version 750-464/020-000)
0:
The overrange limit (see section "Feature Register") is OFF or the
resistance value is above the lower temperature limit in relation to the
calculated temperature.
1:
The overrange limit is ON and the resistance value is below the lower
temperature limit in relation to the calculated temperature.
10R...1k2R, 10R...5kR
0:
The overrange limit (see section "Feature Register") is OFF or the
resistance value is above the lower resistance limit.
1:
The overrange limit is ON and the resistance value is below the lower
resistance limit.
Potentiometer
0:
This bit is always 0.
Range exceeded
Ptxxx, Nixxx (all versions 750-464/xxx-xxx)
NTCxxk (only version 750-464/020-000)
0:
The overrange limit (see section "Feature Register") is OFF or the
resistance value is below the upper temperature limit in relation to the
calculated temperature.
1:
The overrange limit is ON and the resistance value is above the upper
temperature limit in relation to the calculated temperature.
10R...1k2R, 10R...5kR
0:
The overrange limit (see section "Feature Register") is OFF or the
resistance value is below the upper resistance limit.
1:
The overrange limit is ON and the resistance value is above the upper
resistance limit.
Potentiometer
0:
This bit is always 0.
Bit 4
Bit 3
Short
User
Circuit
Over-
Under-
range
range
Process Image
Bit 2
Bit 1
Bit 0
User
Over-
Under-
range
range
Manual
Version 1.1.0
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