User Manual

Table Of Contents
106 Appendix
Mailbox Command References
WAGO-I/O-SYSTEM 750
I/O Modules
Response
Byte 2
7
2
6
2
5
2
4
2
3
2
2
2
1
2
0
0 MBX_DLD_START
1 T MBX_RESULT
2 MBX_DLD_RESULT
Return values
Parameter Value Description
DLD_OK (0x00) No error. The block transfer has been started.
DLD_DOWNLOAD_
NOT_STARTED (0x01)
The block transfer has not been started. An
undefined block is supposed to be transmitted.
DLD_OK_ABORTED
(0x02)
A block transfer is currently active. No new
transfer is being started.
DLD_ERROR (0x31) A non-supported writing or ready operation
has been started.
MBX_DLD_
RESULT
DLD_ERROR_TABLE_
READ_ONLY (0x32)
Protected area of configuration should receive
download.
MBX_CMD_GENERAL_
ERROR
Configuration mode: an error has occurred.
More detailed information in
MBX_DLD_RESULT
MBX_RESULT
MBX_CMD_DENIED_NOT
_APPLICABLE
The command has been called up in commu-
nication mode.