Siemens SIWAREX FTA - Page 137

Weighing Functions
SIWAREX FTA
5-125
Name
Type
Length
Range of Values / Explanation
Reference
Log ID
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.
MMC ID
BYTE[5]
5
1 byte manufacturer ID and 4 bytes serial
number
Reserve 1
UBYTE
1
Reserve 1
Reserve 2
INT
2
Reserve 2
MMC – memory capacity
DINT
4
MMC - total memory capacity in bytes
Available MMC capacity
for log data
DINT
4
Capacity of the MMC for log data [Bytes]
Available capacity for trace
data
DINT
4
Display depending on defined trace target;
RAM or MMC in interface parameters [Bytes]
Oldest MMC-Log-ID
DINT
4
Oldest element
Youngest MMC-Log-ID
DINT
4
Youngest element
Oldest MMC-Trace-ID
DINT
4
Oldest element
Youngest MMC-Trace-ID
DINT
4
Youngest element
Oldest RAM-Trace-ID
DINT
4
Oldest element
Youngest RAM-Trace-ID
DINT
4
Youngest element
48
Table 5-35 Overview of MMC data
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
Type
Length
Range of Values / Explanation
Reference
MMC-ID+
BYTE[5]
5
1 byte manufacturer ID + 4 bytes serial number
Reserve 1
UBYTE
1
Reserve 1
Length
INT
2
[n] number of valid data bytes in the log text;
if 0, then the requested log number does not
exist
Log ID
DINT
4
Identification for saved log text
Log text
BYTE[n]
174
Log text 1|2|3|4
Block check character
DWORD
2
CRC16
(MMC-ID + Log ID + Log text[n])
188
Table 5-36 DR 122 MMC log