Siemens SIMATIC S7 - Page 301

IP244
C79000–B8576–C866–01
7–23
The following table shows the allocation of DB-C and DB-C’:
Data word Allocation Data word Allocation
DBW 0 ...
DBW 30
– free –
DBW 160 ...
DBW 190
Message frame 34:
Data for closed-loop controller 4
DBW 32 Message frame 30: Normalization of
actual value
DBW 192 ...
DBW 222
Message frame 35:
Data for closed-loop controller 5
DBW 34 Minimum temperature difference
p
DBW 36 –
DBW 38 Maximum gradient for heating
DBW 224 ...
DBW 254
Message frame 36:
DBW 40 Delay for heating
DBW 254
Data for closed-loop controller 6
DBW 42 –
DBW 44 –
DBW 256 ...
DBW 286
Message frame 37:
DBW 46 Sampling time for cooling
DBW 286
Data for closed-loop controller 7
DBW 48 Gain for cooling
DBW 50 Integral-action time for cooling
DBW 288 ...
DBW 318
Message frame 38:
DBW 52 Derivative-action time for cooling
DBW 318
Data for closed-loop controller 8
DBW 54 Amount of gradient for cooling
DBW 56 Delay for cooling
DBW 320 ...
DBW 350
Message frame 39:
DBW 58 –
DBW 350
Data for closed-loop controller 9
DBW 60 –
DBW 62 Message frame number
DBW 352 ...
DBW 382
Message frame 40:
DBW 64 ...
DBW 94
Message frame 31:
Data for closed-loop controller 1
DBW 382
Data for closed-loop controller 10
DBW 96 ...
DBW 126
Message frame 32:
Data for closed-loop controller 2
DBW 384 ...
DBW 414
Message frame 41:
Data for closed-loop controller 11
DBW 128 ...
DBW 158
Message frame 33:
Data for closed-loop controller 3
DBW 416 ...
DBW 446
Message frame 42:
Data for closed-loop controller 12
Allocation of DB-C
and DB-C’
FC162