Siemens SIMATIC S7 - Page 300

IP244
C79000–B8576–C866–01
7–22
The following table shows the allocation of DB-B (the shaded areas are allo-
cated by the standard block):
Data word Allocation Data word Allocation
DBW 0 ...
DBW 30
DBW 224 ...
DBW 254
Message frame 21:
Collective setpoints
(in cascaded control)
DBW 32 ...
DBW 62
Message frame 15:
Master control bytes, general-purpose
parameters
DBW 256 ...
DBW 284
Message frame 22:
Curve values 1 ... 15, channel 13
DBW 64 ...
DBW 94
Message frame 16:
Status information, error messages
DBW 286 ...
DBW 314
Message frame 23:
Curve values 16 ... 30, channel 13
DBW 96 ...
DBW 126
Message frame 17:
Actual values
DBW 316 ...
DBW 344
Message frame 24:
Curve values 31 ... 45, channel 13
DBW 128 ...
DBW 158
Message frame 18:
Manipulated variables
DBW 346 ...
DBW 374
Message frame 25:
Curve values 46 ... 60, channel 13
DBW 160 ...
DBW 190
Message frame 19:
Minimum values
DBW 376 ...
DBW 406
Message frame 46:
Error messages, closed-loop controllers
0 ... 12
DBW 192 ...
DBW 222
Message frame 20:
Maximum values
Allocation of DB-B
FC162