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Name
Log ID
MMC ID
Reserve 1
Reserve 2
MMC – memory capacity
Available MMC capacity
for log data
Available capacity for trace
data
Oldest MMC-Log-ID
Youngest MMC-Log-ID
Oldest MMC-Trace-ID
Youngest MMC-Trace-ID
Oldest RAM-Trace-ID
Youngest RAM-Trace-ID
Table 5-35
5.32 DR 122 Log data MMC
By reading DR 123, the log data that is stored on the MMC can be determined with
SIWATOOL FTA.
Then, a log for a defined log ID can be read with DR 122.
Name
MMC-ID+
Reserve 1
Length
Log ID
Log text
Block check character
Table 5-36
DR 122 MMC log
SIWAREX FTA
Type
Length
Range of Values / Explanation
DINT
4
Depending on the log output RS232 / MMC, this
ID is shown as follows
RS232
The ID is incremented with every log output
("not with repeat") and is stored and managed
in RAM memory. This number is only reset with
default values.
MMC
The ID is incremented with every log output
("not with repeat") and is stored and managed
in MMC memory. This number can only be
reset by deleting or formatting the card.
BYTE[5]
5
1 byte manufacturer ID and 4 bytes serial
number
UBYTE
1
Reserve 1
INT
2
Reserve 2
DINT
4
MMC - total memory capacity in bytes
DINT
4
Capacity of the MMC for log data [Bytes]
DINT
4
Display depending on defined trace target;
RAM or MMC in interface parameters [Bytes]
DINT
4
Oldest element
DINT
4
Youngest element
DINT
4
Oldest element
DINT
4
Youngest element
DINT
4
Oldest element
DINT
4
Youngest element
48
Overview of MMC data
Type
Length
Range of Values / Explanation
BYTE[5]
5
1 byte manufacturer ID + 4 bytes serial number
UBYTE
1
Reserve 1
INT
2
[n] number of valid data bytes in the log text;
if 0, then the requested log number does not
exist
DINT
4
Identification for saved log text
BYTE[n]
174
Log text 1|2|3|4
DWORD
2
CRC16
(MMC-ID + Log ID + Log text[n])
188
Weighing Functions
Reference
Reference
5-125
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