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4-31
4 Remote I/O Master Communications
CJ-series DeviceNet Units Operation Manual for NJ-series CPU Unit(W497)
4-5 Sta
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Rem
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I/O C
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4
4-5-1 Star
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I/O C
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4-5
Starting and Stopping Remote I/O
Communications
Remote I/O communications start automatically after the Unit is restarted or the Controller is reset,
including when the power is turned ON.
The
*_Mstr1IOCommSta
(I/O Data Communications Status) is changed to TRUE when remote I/O
communications is started with at least one slave.
Remote I/O communications stop under the following user-controlled conditions. Message communica-
tions can still be performed when the remote I/O communications stop.
Stop Communications with All Slaves
When
*_Sw1IOCommStopCmd
(Remote I/O Communications Stop Switch) is changed to TRUE.
Stop Communications with a Specified Slave
When associated device variables for CJ-series Unit
*_CnctNdCmd[0]
to
*_CnctNdCmd[63]
(Dis-
connect/Connect Switches for Node Address 0-63 Slave) are changed to TRUE (Disconnected
when changed to TRUE).
Note
The communications cycle time is not shorter even though a slave was disconnected from
remote I/O communications by setting the Disconnect/Connect Switch to TRUE. (Blank time
in the communications cycle will only be increased.)
Remote I/O communications restart under the following conditions.
Restart Communications with All Slaves
Remote I/O communications restart when
*_Sw1IOCommStartCmd
(Remote I/O Communications
Start Switch) is changed to TRUE. (Only communications with slaves with the Disconnect/Connect
Switch changed to FALSE will be restarted.)
Restart Communications with Specified Slave
When associated device variables for CJ-series Unit
*_CnctNdCmd[0]
to
*_CnctNdCmd[63]
(Dis-
connect/Connect Switches for Node Address 0-63 Slave) are changed to FALSE. (Connected when
changed to FALSE.)
4-5-1
Starting Remote I/O Communications
4-5-2
Stopping Remote I/O Communications
4-5-3
Restarting Remote I/O Communications
Содержание CJ1W-DRM21
Страница 12: ...Manual Structure 10 CJ series DeviceNet Units Operation Manual for NJ series CPU Unit W497 ...
Страница 42: ...Revision History 40 CJ series DeviceNet Units Operation Manual for NJ series CPU Unit W497 ...
Страница 214: ...6 Message Communications 6 26 CJ series DeviceNet Units Operation Manual for NJ series CPU Unit W497 ...
Страница 345: ...Index 1 CJ series DeviceNet Units Operation Manual for NJ series CPU Unit W497 I Index ...
Страница 349: ......