Keyence Visual KV Series Bedienungsanleitung Seite 284

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7.5 KV Mode Programming
KV-300 Series Only
KV-300
KV-10/80
Chapter 7 KV-L2 Serial Interface Module
1-260
7
Reading DM
Reads content of the specified data memory address.
Command: RD_DMnnnn [nnnn = data memory no.]
Response: ddddd [ddddd = 00000 to 65535 (in decimal)]
Writing into DM
Writes values into the specified data memory address.
Command: WR_DMnnnn_ [nnnn = data memory no.]
ddddd [ddddd = 00000 to 65535 (in decimal)]
Response: OK
Reading TM
Reads content of the specified temporary memory address.
Command: RD_TMnn [nn = 00 to 31 (temporary memory no.)]
Response: ddddd [ddddd = 00000 to 65535 (in decimal)]
Writing into TM
Writes values into the specified temporary memory address.
Command: WR_TMnn_ddddd [nn=00 to 29 (temporary memory no.)]
[ddddd = 00000 to 65535 (in decimal)]
Response: OK
An underscore (_) in the command represents a space.
Other response codes
The KV-L2 returns a response corresponding to the command transmitted by the
computer. If the command from the computer is an unspecified one, or if an error
occurs in the KV-300 CPU, the KV-L2 issues an appropriate response code for the
status.
The following table summarizes the description, cause, and remedy for a response
code.
Response
Code Description Cause Remedy
E0 Relay no.
error
Undefined relay, counter,
timer, DM, CTH, or CTC
number was specified.
Counter, timer, CTH or CTC
number not used in a pro-
gram was specified.
Undefined or inconnect
command was transmitted.
Specify a number that is
defined in the KV-300 CPU
being used.
Check the program, and
specify a number used in
the program.
Transmit the connect
command.
E1 Command
error
Undefined or incorrect
command was transmitted.
Command other than "CR"
was transmitted before the
communications path was
established.
Transmit the correct com-
mand.
Transmit "CR" to initiate
communications, then
transmit the command.
KVHKA Chap 07_5to10.p65 08.3.11, 11:18 AM260
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