Siemens SIMATIC S5 Manual page 243

Function
Assignment in message 14 of data block DB-A with heating current monitoring
*) The message number must be entered by the user
The assignment in messages 15 and 16 is identical to that for standard controllers. The significance
of individual bits in the error bytes is, however, changed (see Part 3, Section 3.3, Heating Current
Monitoring).
5–38
IP244
C79000–B8576–C861–02