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Advant Controller AC 31 / Issued: 08.99
A – 3
Appendix
3
A2
Historical values
Historical values are basic unit specific internal variables which enable the interim results of
results, which are required for numerous cycles, to be stored.
So that cycle N can be executed correctly, certain functions require the results obtained during
cycle N-1 (e.g. the PI and PIDT1 controllers).
The total number of available historical values in the 40 and 50 series is 256.
The following table contains a list of functions with the number of historical values which they
use:
Timer functions
ASV
1 (additional memory for the timers is restricted to 42 variables)
ESV
1 (additional memory for the timers is restricted to 42 variables)
MOA
1 (additional memory for the timers is restricted to 42 variables)
MOK
1 (additional memory for the timers is restricted to 42 variables)
PDM
1 (additional memory for the timers is restricted to 42 variables)
Counter functions
VRZ
3
CS31 bus functions
CS31CO
1
Communication functions
MODBUS
®
2
EMAS
1
DRUCK
2
SINIT
1
Controller functions
PI
3
PID
5
High order functions
BMELD
3 + number of inputs E
UHR
1
Содержание 07CR41
Страница 6: ...Contents 4 Advant Controller AC 31 Issued 08 99 3 ...
Страница 58: ...Installation 4 10 Advant Controller AC 31 Issued 08 99 3 Figure 16 Relay outputs Figure 17 Transistor outputs ...
Страница 62: ...Installation 4 14 Advant Controller AC 31 Issued 08 99 3 Figure 22 Extension XK 08 F1 l ...
Страница 94: ...Programming 5 22 Advant Controller AC 31 Issued 01 99 3 ...
Страница 110: ...Communication 6 16 Advant Controller AC 31 Issued 01 99 3 ...
Страница 122: ...Appendix A 4 Advant Controller AC 31 Issued 08 99 3 ...
Страница 123: ......