Omron CJ1W-FLN22, Руководство по эксплуатации, Страница: 147 / 277

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Command/Response Reference Section 7-5
7-5-7 WORD BLOCK DATA READ (UNSPECIFIED NODE NUMBER)
Sends the request message Word Block Data Read (Unspecified Node Num-
ber).
The remote node address specified in the control data of the CMND(490)
instruction is used for the read destination node number. The FINS command
can be executed from the CPU Unit in the FL-net Unit, but an error will occur if
the command passes through a FINS network on another layer.
Note 1. This command is provided to ensure compatibility with applications creat-
ed with the CS1W-FLN01.
2. Use the WORD BLOCK DATA READ/WRITE (specified node number)
commands to create new applications.
Command Block
Response Block
Parameters
First Address of the
Virtual Address Space
(Command) Set the first address of data that will be read using hexadecimal format.
Addresses spanning multiple areas cannot be set.
Refer to 7-4 CS/CJ-series Memory Areas and Virtual Addresses if the node
that will be read is an OMRON FL-net Unit. If it is another manufacturer’s FL-
net node however, refer to the manual for that node.
Size (Command) Specifies up to 512 words for the number of words in data that is received.
Response Codes
Application Example
This example shows a program with the WORD BLOCK DATA READ
(unspecified node number) command.
Sample configuration The FINS 2903 command executes at the point indicated by this mark and the
WORD BLOCK READ FRAME (transaction code: 65005) is sent.
29 03
Command
code
First address of the
virtual address space
Size
(words)
29 03
Command
code
0 to 1,024 bytes (512 words)
Completion
code
Data that is read
Response code Description
0000 Normal completion
0101 Local node not part of network
0104 Reception buffer overflow, queuing not started (reception side)
0107 Unit's internal buffer full
0205 No response from remote node
1001 Command length too long
1002 Insufficient command length
1005 Sequence number error, sequence version error
110C Source node is local node, requested number of words is
greater than 512.
2605 Servicing in progress