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

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6
SYSMAC LINK Unit Functions Section 1-3
Data Link Specifications
Message Communications Specifications
1-3 SYSMAC LINK Unit Functions
This section explains the settings and functions for the SYSMAC LINK Unit.
For details, refer to the relevant sections.
1-3-1 Basic Settings
Perform the basic settings to use the SYSMAC LINK Unit.
Node Address
(See pages 18 and 35) Set the address of the local node in the network using the rotary switches on
the front of the SYSMAC LINK Unit.
Unit Number
(See pages 18 and 35) Up to 16 CPU Bus Units (SYSMAC LINK Units, Controller Link Units, Ethernet
Units, Serial Communication Units, etc.) can be mounted on one PLC. Of
these, however, only a maximum of four Units may be SYSMAC LINK Units.
Type of data link Automatic settings Manual settings
Number of data link nodes 62 nodes max. (2 nodes min.)
Number of words per node (sending
and receiving) 2,966 words max. (CIO Area + DM Area total)
Areas supporting
data links CIO Area Data Link Area:
CIO 1000 to
CIO 1063 Select from the
following: CIO
Area only, DM
Area only, CIO +
DM Areas CIO Area (CIO 0000 to CIO 6143)
DM Area D00000 to
D00127 DM Area (D00000 to D32767)
Starting data link
word CIO Area CIO 1000 Manual settings can be made between
CIO 0000 to CIO 6143
DM Area D00000 Manual settings can be made between
D00000 to D32767
Number of words
sent per node CIO Area Either 4, 8, 16, or 32 words (same for
each node) 0 to 254 words (separate for each
node)
DM Area Either 8, 16, 32, or 64 words (same for
each node)
Allocating data
link words CIO Area Each node has the same number of
data link words and words are allo-
cated to nodes in the order of node
addresses. The number of data link words and the
order of allocation can be set for each
node. The same order of allocation
must be used for both the CIO Area
and the DM Area.
DM Area
Instructions SEND(90)/RECV(98) CMND(490)
Application Data sending and receiving Reading and writing data at other nodes
(e.g., reading/writing file memory), con-
trolling operation (e.g., controller operat-
ing modes), reading error logs, etc.
Message contents Commands for sending and receiving
data Any supported FINS commands
Local node to
partner node PLC to PLC Possible Possible
PLC to computer Possible (requires program that returns
responses from the computer) Possible (requires program that returns
responses from the computer)
Computer to PLC Possible (requires program that receives
responses at the computer) Possible (requires program that receives
responses at the computer)
Local node: partner node SEND(90): 1:1 or 1:N (broadcast)
RECV(98): 1:1
1:1 or 1:N (broadcast)
Number of words sent and
received 256 words max. (512 bytes) 542 bytes max.