Yamaha SRCD Manual de usuario Pagina 25

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19
CHAPTER2 CC-Link Unit
Remote Register
Status
Reserved
Command response
-
0
0
0
0
RWrn
RWrn+1
RWrn+2
RWrn+3
RWrn+4
RWrn+5
RWrn+6
RWrn+7
Execution command
Command option
RWwn
RWwn+1
RWwn+2
RWwn+3
RWwn+4
RWwn+5
RWwn+6
RWwn+7
OUTPUT (RemoteMaster) INPUT (MasterRemote)
Address Description Address DescriptionDefault Default
n: Value determined by station number settin
g
.
*For details on the remote register, refer to "2-12 Remote Command".
2-7-2 Dedicated command inputs
Dedicated command inputs are inputs from the sequencer (PLC) to the controller for
performing specific processing such as origin return or servo recovery. To accept these
inputs, the READY, BUSY, and Lock signals must be set as follows:
READY : ON
BUSY : OFF
LOCK : ON
If the above conditions are not satisfied, then dedicated command inputs cannot be ac-
cepted. For example, when the BUSY signal is on, this means that the controller is al-
ready executing a dedicated command, so other dedicated commands are ignored if they
are input. When the LOCK signal is off, no other commands can be accepted since
interlock was triggered.
(As an exception, the reset command is executed if only the BUSY output conditions are
met. The servo recovery command is executed if the BUSY conditions are met and all
emergency stop inputs to the emergency stop circuit are cancelled.)
A dedicated command input is accepted when the dedicated command input is switched
from OFF to ON (at the instant the contact point closes). Whether the controller accepts
the command or not can be checked by monitoring the BUSY signal.
Note that dedicated command inputs cannot be used as data in a program.
!
CAUTION
The dedicated command inputs explained below must always be pulse inputs. In
other words, they must be turned off (contact open) when the BUSY signal turns
on.
If a dedicated command input is not turned off, then the BUSY signal will not turn
OFF even when the command has ended normally. This means that the next com-
mand cannot be accepted.
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