Keyence LS-7000 Bedienungsanleitung Seite 148

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Seitenansicht 147
7-6
Chapter 7 RS-232C
7
Outline of Command Formats
When LS-7000 Series receives a command from the external device, the LS-7000 Series
will respond to the received command and return a response to the external device. The
following section provides information on respective command formats.
Note: When you write a control program, check that the program will enable the
external device to send the next command after the external device confirms
the response from the LS-7000 Series.
Connection to a PC/PLC Link Unit
Connection to KV-10/80 series
LS
Command
Response
Command format
cr
Response format
cr
STX
Command format
STX
Response format
LS
Command
Response
ETX
ETX
The Cr character is appended to the com-
mands and responses.
The STX+ETX characters are used to insert
a delimiter each to the command and
response formats.
Outline of Command Formats
The following typical examples of command formats are explained below.
Command format
Response format
Error response format
Command Format
Main command
, , ,
Identifier 1 Identifier 2 Identifier 3
[][] ][
Response Format
The received main command or identifier will be
added as the header.
, , ,
[][] ][
Error Response Format
Main command
E R , ,
Error number
00: Command error
01: Command error due to operational problem
06: Delimiter error at the time of PLC selection
20: Data length error
21: Error in the number of data items
22: Data value overrange
88: Time-out error
99: Others
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