Mitsubishi Electric M800VW Series Programming Manual page 640

M800V/M80V Series PLC Programming Manual (2/2)
14 PLC Help Function
14.10 Arbitrary Reverse Run
Contact Signal name
A MACRO INTERRUPT PRIORITY
[Function]
In the arbitrary reverse run, turning ON the "Macro interrupt" (UIT) signal executes a block stop during the reverse run.
Then this signal is used to select the operation when an automatic operation is started while the "Reverse run" (VRV)
signal is OFF.
[Operation]
When this signal is OFF, a forward run is executed with the fall of the "Automatic operation "start" command" signal.
When this signal is ON, a macro interrupt program is executed with the fall of the "Automatic operation "start" command"
signal.
This signal is available only in the reverse run control mode.
[Related signals]
(1) Reverse run from block start (RVSP: YD08)
(2) Reverse run control mode (RVMD: YD0A)
(3) Reverse run (VRV: YC27)
Contact Signal name
A REVERSE RUN CONTROL MODE
[Function]
This signal is used to save the reverse run information used for the reverse run control in the arbitrary reverse run.
[Operation]
When this signal is ON, the reverse run information is saved.
Turn this signal ON at the start of the block where the reverse run control is executed. Turn it OFF when resetting.
Turn ON the "Recalculation request" signal (CRQ) when turning ON this signal.
Unless the recalculation is requested, the reverse run information does not include the block that has been created by pre-
reading.
[Related signals]
(1) Reverse run from block start (RVSP: YD08)
(2) Macro interrupt priority (RVIT: YD09)
(3) Recalculation request (CRQ: YC2B)
Signal abbre-
$1 $2
viation
RVIT YD09 YE49
Signal abbre-
$1 $2
viation
RVMD YD0A YE4A
619
$3 $4
YF89 Y10C9
$3 $4
YF8A Y10CA
IB-1501668-B