Omron V700 series, Operation Manual

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5-13 Section Connecting Commands
95
Command Frame Structure
STX Node No. Command 1 ETX BCC + Command 2
1 2 1 1 1
Response Frame Structure
1, 2, 3... 1. Normal End
STX Node No. Response 1 ETX BCC + Retry
Flag Response 2
1 2 1 1 1 1
2. Error Resulted
The command code of command 1 and the response code are sent.
STX Node No. Command 1
code ETX BCC Retry
Flag Response
code
1 2 1 1 1 2 2
Communications Specifications
When commands are connected, the communications option specified with
command 1 takes precedence. The POLLING AUTOREAD and POLLING AU-
TOWRITE commands use the single auto option. The MEMORY CHECK,
MEMORY CALCULATE, and WRITE PROTECT commands use the single trig-
ger option.
First Address and Number of Processed Bytes
The memory area of the ID Tag specified by command 1 and that specified by
command 2 for data processing must not overlap except for the following cases.
•
Connection of the MEMORY CHECK command to a READ (RD or PR) com-
mand.
•
Connection of MK command to WT, AD, or SB command when the addresses
written by MK do not overlap the addresses written by the other command.
POLLING Process
In case command 1 is POLLING AUTOREAD or POLLING AUTOWRITE com-
mand is specified in command 1, the Controller will perform polling processing.
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