Siemens SINUMERIK 840C Installation Instructions Manual page 488

09.95
Note:
This machine data is calculated only once during ramp-up; its value cannot therefore be
changed during operation.
1720
Default value
0000
This machine data is used to display detected CRC errors (cyclical redundancy check). The
counter information is output with every read request and is 5 bits in width (bit 4...bit 0 or
counter reading 0...31).
Note:
It cannot be guaranteed in all cases that the CRC error is assigned to the appropriate drive.
When the address is faulty, the "wrong" module indicates the error.
1797
Default value
0
Output of current data version (machine data list).
1798
Default value
0
Output of coded software version in decimal format. The date is coded as such: DDMMY,
where DD stands for day, MM for month and Y for the last number in the year.
Example: 01.06.1993 ˆ = 01063
1799
Default value
0
Output of current software version (configuration management).
©
Siemens AG 1992 All Rights Reserved
SINUMERIK 840C (IA)
CRC diagnosis parameter
Lower output limit Upper output limit
0
Data version
Lower output limit Upper output limit
0
Firmware date
Lower output limit Upper output limit
0
dec
Firmware version
Lower output limit Upper output limit
0
6FC5197- AA50
7 Drive Machine Data (SIMODRIVE Drive MD)
7.2.2 FDD MD (data description - SW 3)
Units
FFFF Hex
Units
32 767
Units
32 767
Units
32 767
Active
at once
Active
at once
–
Active
at once
–
Active
at once
–
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