IDEC MicroSmart Pentra - Manual (Page 56)

D EVICE A LLOCATION OF PID M ODULE
FC5A MicroSmart PID Module User’s Manual FC9Y-B1283 5-15
0 0 2 1 1 1 1 2 0 2 1 1 1 9 9
Example 5: Hold Program Control when Program Ends
The following diagram shows an example of the program control when hold program control is selected as
the program end action.
Time of steps: Step 0 and 1: 60 minutes, Step 2: 30 minutes, Steps 3 to 9: 0 minute
In this example, D1000 is allocated to the control register and M500 is allocated to control relay.
Note: If minute is selected as the step time unit, the remaining time is handled with the unit of minute. If the remaining
time is between 29 minutes 1 second and 30 minutes 0 second, the remaining time will be 30 minutes.
Current step number
D1006
Control enable bit
D1022.0
Program control bit
D1022.3
Program control bit
(Monitor)
D1009.3
Program hold bit
D1022.4
Advance next step bit
D1022.6
Advance previous step bit
D1022.7
Program end output
D1010.6
30 sec 30 sec 20 min
60 min
60 min 40 min 40 min
The program control is started
from the start of step 0.
The program control is held, and
the fixed value control is performed
with the parameters of step 9.
The program control is held, and the
fixed value control is performed with
the parameters of step 9.
The control is enabled and the
program control is started.
The program hold is canceled, and the
program control is started from 40 minutes
of remaining time.
If the program hold, advance next step, and advance previous
step are executed simultaneously, they are executed as
follows:
1. Program Hold
The program control is held at 20 minutes of remaining time.
2. Advance Next Step
The program hold is canceled, and the program control is
proceeded to the start of step 2.
3. Advance Previous Step
The program control is moved back to the start of step 1.
As a result, only the execution of the advance previous step is
resulted in.
If the program hold and advance previous step
are executed simultaneously, they are executed
as follows:
1. Program Hold
The program control is held at 30 minutes (Note)
of remaining time.
2. Advance Previous Step
The program control is proceeded to the start of
step 1 while the program hold is maintained.
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF