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132 • Reference Commands – Mailbox Commands
Download Commands
3.1.4.3.3
DLD_END (0x43)
End of Download
The download is completed and the stepper module checks the checksum. If
the checksum is not OK, the table is invalid and can not be activated. The
checksum is the sum of all data transferred with DLD_CONT. Summation is
performed at 8 bits, with the 4 bytes that were transferred with DLD_CONT
each being taken as 8-bit values. The difference between the sum of all
transferred data and the checksum must therefore be zero. The request data are
ignored for an upload. If a configuration table is transferred, saving to
EEPROM is performed automatically (but only when saving has been
completed successfully), with a subsequent warm start (even if the transfer
was faulted) that re-initializes all software modules.
The Reset status bit is set after the warm start; this must be canceled using
Reset_Quit.
Only then is the module operational again.
After a successful download of a Move program to RAM Table 1, that table is
automatically activated. (only when no other table is active however, see also
TABLE_START)
Byte
MB0
MB1
MB2
MB3
MB4
MB5
Byte
MB0
MB1
MB2
MB3
MB4
MB5
Return
Code
Request
7
6
5
4
2
2
2
2
0x43
T
Checksum for transferred data (LSB)
Checksum for transferred data
Checksum for transferred data
Checksum for transferred data (MSB)
Response
7
6
5
4
2
2
2
2
0x43
T
Return Code
Checksum for stored data (LSB)
Checksum for stored data
Checksum for stored data
Checksum for stored data (MSB)
0x00:
OK
0x31:
General error
3
2
1
0
2
2
2
2
-
3
2
1
0
2
2
2
2
WAGO-I/O-SYSTEM 750
I/O Modules
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