Siemens SIMATIC - Page 555

Parameter sets of signal modules
A.8 Parameters of SM 331; AI 8 TC
S7-300 Module data
Manual, 06/2017, A5E00105505-AJ
555
Measurement type
Code
Measuring range
Code
TC-IL: (thermocouple, linear, internal comparison) 2#1101 B
N
E
R
S
J
L
T
K
U
C
TXK/XK(L)
2#0000
2#0001
2#0010
2#0011
2#0100
2#0101
2#0110
2#0111
2#1000
2#1001
2#1010
2#1011
TC-EL: (thermocouple, linear, external comparison) 2#1110 B
N
E
R
S
J
L
T
K
U
C
TXK/XK(L)
2#0000
2#0001
2#0010
2#0011
2#0100
2#0101
2#0110
2#0111
2#1000
2#1001
2#1010
2#1011
Reaction to open thermocouple of the SM 331; AI 8 x TC
The table below lists the codes for the reaction to an open thermocouple to enter at the
corresponding byte of data record 128 (refer the previous figure.)
Table A- 19 Codes of the reaction to open thermocouple of SM 331; AI 8 x TC
Response to open thermocouple
Code
Overflow
2#0
Underflow
2#1