A-12
Programmable Logic Controllers S7-300 Module Data
A5E00105505-03
Structure of data record 1
The figure below shows the structure of data record 1 for SM 331;
AI 8 xRTD. You activate a parameter by setting the corresponding bit to “1”.
Byte 0
76 0
Diagnostics interrupt enable
Limit value interrupt enable
Bytes 1 to 13 are not assigned
Cycle end interrupt enable
2
Temperature unit 0: degrees Celsius
1: degrees Fahrenheit
Figure A-4 Data Record 1 of the Parameters for SM 331; AI 8 x RTD