Cutler-Hammer D320 PLC, Руководство пользователя

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D320 PLC User's Manual
The individual words of the register block define the operating parameters for the functioning of a
given PID loop, as well as providing a workspace for the D320 to perform its calculations. These
parameters are summarized in Table 3 below.
TABLE 3 – PID Parameter Block
Word # Description Type Abbrev. Range
0 Status Register System Output SR See Table 3
1 Setpoint User Input SP -327.67 – +327.67
2 Process Value System Input PV -327.67 – +327.67
3 Process Value (Scaled) System Input PVs -327.67 – +327.67
4 Control Value System Output CV -327.67 – +327.67
5 Control Value (Scaled) System Output CV -327.67 – +327.67
6 Control Value Maximum User Input CVmax -327.67 – +327.67
7 Control Value Minimum User Input CVmin -327.67 – +327.67
8 Proportional Term User Input Kp 0 – +327.67
9 Integral Term User Input Ki 0 – +327.67
10 Derivative Term User Input Kd 0 – +327.67
11 FeedForward or Bias User Input FF/Bias -327.67 – +327.67
12 Sampling Cycle Time (unit: 10ms) User Input Dt 0.01s – +327.67s
13 Dead Band User Input DB -327.67 – +327.67
14 Manual CV Setting User Input CVm -327.67 – +327.67
15 Reserved - - -
16 Reserved - - -
17 Maximum Scaling Value User Input Smax -327.67 – +327.67
18 Minimum Scaling Value User Input Smin -327.67 – +327.67
19 Number of PID Operations System Output - 0 – 65535
20-31 Reserved - - -