YOKOGAWA UP35A, Руководство пользователя

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9-41
IM 05P02D41-01EN
Program Pattern Functions
9
9.13 Synchronized Program Pattern Operation
9.13.1 Synchronized Operation During Switching Between Segments
Description
A synchronized operation during switching between segments can be performed using a
wait during switching between segments and a contact I/O.
This function can be implemented by registering a wait due to a contact input (parameter
WAIT) and a control flag for segment transition (I relay: 4261) in the contact output and
using the respective contact I/Os.
The following parameters are available in wait operations using this function.
Wait parameters:
WT.SW1, WZ.UP1, WZ.LO1
The following shows an example of synchronized operation during switching between
segments.
Wire each contact I/O of controllers 1 to 3 as shown in the following figure.
When setting parameters, set “5027” in the Wait ON/OFF switch parameter “WAIT” of
each controller (DI function registration menu: DI.SL) and set “4261” in the AL3 function
selection parameter “AL3.S” of each controller (AL1-AL3 function registration menu: ALM).
Once controller 1 is put in the wait state, none of the controllers are allowed to transition
to the next segment and are forcibly put in the wait state. They are allowed to transit to
the next segment only when each control flag for segment transition (I relay: 4261) of all
the controllers is set to OFF.
When each control flag for segment transition (I relay: 4261) of all the controllers
is set to OFF, each controller is allowed to transit to the next segment.
Occurrence of wait
state
AL3 DI3
No.1 No.2 No.3
AL3 DI3 AL3 DI3
Forcibly wait the operation
by digital input
Forcibly wait the operation
by digital input
Control flag for segment transition (I relay: 4261)
When the control flag for segment transition is ON:
• The controller is in the wait state at segment transition (out of the wait zone) or the
remaining segment time is not zero.
When the control flag for segment transition is OFF:
• The controller is not in the wait state and the remaining segment time is zero.
• Each control flag for segment transition (I relay: 4261) of all the controllers is set to OFF
and a one-second off state is caused immediately after segment transition takes place.
• The operation concerned is not program pattern operation.(Reset, Local)
• The wait function ON/OFF switch (WT.SW1) is OFF.
Note
• Turn on the power switches of all the controllers at the same time.
• Set each segment time to five seconds or more.
• Set JC=CONT usually because transition to the next segment may not take place depending
on the setting contents (wait switching or hold switching) of the junction code (JC).