
130
Micro Motion
®
Model 3711 Gas Flow Computers
Function Sequence Tables
Figure 11-7
FST Example 2
11.9.3
Example 3 – Cycling an FST on a periodic basis
In this example, the FST is set to run on a 10-second cycle. A timer is used to determine how much, if
any, of the cycle remains after the FST executes, and therefore the number of seconds to wait before
restarting the FST.
The FST is shown in Figure 11-8. In this FST:
•
Step 0: Set Timer 1 to 100 100-millisecond intervals (10 seconds).
•
Steps 1–4: These are the steps to be cycled.
•
Step 5: Store the value in Timer 1 to RR.
•
Step 6: Convert the value in Timer 1 to seconds, and store the result in RR.
•
Step 7: Wait for the number of seconds specified in RR.
•
Step 8: Complete the FST, delay 100 milliseconds, then restart at Step 0.
Figure 11-8
FST Example 3
FST body
Содержание Micro Motion 3711
Страница 32: ...24 Micro Motion Model 3711 Gas Flow Computers ...
Страница 44: ...36 Micro Motion Model 3711 Gas Flow Computers ...
Страница 56: ...48 Micro Motion Model 3711 Gas Flow Computers ...
Страница 68: ...60 Micro Motion Model 3711 Gas Flow Computers ...
Страница 92: ...84 Micro Motion Model 3711 Gas Flow Computers ...
Страница 108: ...100 Micro Motion Model 3711 Gas Flow Computers ...
Страница 140: ...132 Micro Motion Model 3711 Gas Flow Computers ...
Страница 196: ...188 Micro Motion Model 3711 Gas Flow Computers ...
Страница 210: ...202 Micro Motion Model 3711 Gas Flow Computers ...
Страница 233: ......