WAGO-I/O-SYSTEM 750
Process Image
71
750-464 2/4 AI RTD configurable
Manual
Version 1.0.1
Table 57: Control Byte C3
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
RegCom
0
0
0
0
0
0
0
RegCom
Register Communication
0:
Register communication is switched off (normal mode)
1:
Register communication is switched on (configuration, see section
"Feature Register")
0
The bit is reserved and many not be changed.
Table 58: Status byte S3
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Reg_Com
General
Error
Wire
Break
Short
Circuit
User
Over-
range
User
Under-
range
Over-
range
Under-
range
Underrange
Underrange
Ptxxx, Nixxx, NTCxxk
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.
Overrange
Range exceeded
Ptxxx, Nixxx, NTCxxk
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.