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W
F
EIGHING
UNCTIONS AND
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 5-27
Overview of MMC data
5.27 DR 122 Log Data MMC
By reading the DR 122, SIWATOOL FTC can be used to determine which log data
is stored on the MMC.
A log can then be read for a defined log ID.
Name
MMC-ID
Reserve 1
Length
Log ID
Log text
Block check character
Table 5-28
MMC log
SIWAREX FTC
P
ARAMETERS
Type
Length
Range of Values / Meaning
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
BYTE
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 the defined trace target
RAM or MMC in the 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
Type
Length
Range of Values / Meaning
BYTE[5]
5
1 byte manufacturer ID + 4 bytes serial
number
BYTE
1
Reserve 1
INT
2
[n] Number of valid data bytes in the log text;
if 0, the requested log number does not exist
DINT
4
ID for stored log text
BYTE[n]
174
Log text 1|2|3|4
INT
2
CRC16
(MMC-ID + Log ID + Log text[n])
188
5-87
Reference
Reference
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