106
Main
code
MeaningSub-
code
Description
21 Write not possible 01 The specified area is read-only or is write-protected via the key switch,
the PROGRAM AREA PROTECT command, or the PC Setup.
02 The specified area is protected.
04 The corresponding data does not exist.
05 A non-existing program no. has been specified.
06 A non-existing file has been specified.
07 The specified file already exists.
08 The operation failed due to improper data.
22 Not executable in current PC 03 The PC is in PROGRAM mode.
mode 04 The PC is in DEBUG mode.
05 The PC is in MONITOR mode.
06 The PC is in RUN mode.
23 No Unit 01 A file device does not exists where specified.
02 The specified memory does not exist.
03 No clock exists.
04 The specified Unit does not exist.
25 Unit error 0F A memory error has occurred in internal memory, in the memory card,
or in expansion data memory.
26 Command error 01 The specified area is not protected. This response code will be
returned if an attempt is made to clear an area that is not protected.
02 An incorrect password has been specified.
03 The specified program no. is an area that cannot be executed.
04 The specified area is protected.
30 Access right error 01 The access right is held by another device.
Note If PCs are used in a network, response codes other than the above may be re-
turned. Refer to the CV-series SYSMAC LINK System Manual or the CV-series
SYSMAC NET Link System Manual for response codes related to these Sys-
tems.
6-4-2 Network Errors
When a network error has occurred, it is possible to find from the response code
and the succeeding text the node on which the error has occurred.
915 14 13 12 11 10 43210
1 Main code Subcode
Bit
1: Non-fatal error occurred.
1: Fatal error occurred.
Communications error occurred.
8
765
First byte Second byte
Response code
Network address with an error Node number with an error
Text after the response code
Network address with an error: 00 to 7F (0 to 127)
Node number with an error SYSMAC NET: 01 to 7E (1 to 126)
Node number with an error SYSMAC LINK: 01 to 3E (1 to 62)
After checking the node on which the error has occurred, take necessary steps
for possible correction.
CV-mode Response Codes
Section 6-4
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