Omron CS1W-SLK11-21 - 06-2004, Руководство пользователя

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Data Link Status Section 4-9
!Caution
Check the following before starting the data links. If the data link table settings
or the DM parameter settings are unsuitable, there is a risk of injury due to
unanticipated operation of the system.
(a) Manual settings: Check that suitable data link tables have been
set in each data link node. Check that data link tables have been
deleted for nodes not participating in the data links.
(b) Automatic settings: Check that suitable DM parameters have
been set in the data link startup node.
!Caution
Even if the data link table settings or the DM parameter settings are suitable,
check that there will be no adverse effects on the controlled equipment before
starting or stopping the data links.
4-8-1 DM Parameter Area Software Switches
To start the data links, turn ON the Data Link Start/Stop Bit in DM parameter
area in the CPU Unit of the node you wish to use as the startup node.
To stop the data links, turn OFF Data Link Start/Stop Bit in DM parameter
area in the CPU Unit of a node participating in the data links.
The Data Link Start/Stop Bit can be turned ON and OFF using the user pro-
gram, Support Software, or a Programming Console (refer to
4-4-3 Data Link
Start/Stop Bit ).
Refer to Section 4-12 CX-Programmer Procedures or CX-Programmer Opera-
tion Manual for actual procedures.
4-8-2 DATA LINK START/HALT Commands
Data links can be started by sending a DATA LINK START command from a
host computer or by executing the CMND(490) instruction to send the com-
mand from a PLC to the node you wish to use as the startup node.
Data links can be stopped by sending a DATA LINK HALT command from a
host computer or by executing the CMND(490) instruction to send the com-
mand from a PLC to a node participating in the data links.
Note Refer to 6-4-1 DATA LINK START and 6-4-2 DATA LINK HALT for details.
4-8-3 CX-Net in CX-Programmer
The data link can be started or stopped from the Support Software. Refer to
CX-Programmer Operation Manual for details.
4-9 Data Link Status
The status of the local node and the nodes in the data links can be checked
from the data link status area in the words allocated to the SYSMAC LINK
Unit as a CPU Bus Unit.
Word: (100 x unit number)
Bit
Data Link Start/Stop Bit
The data links will start when the bit is turned ON,
or if it is already ON when the power is turned ON.
The data links will be stopped when the bit
is turned OFF.
−
: Other settings