Master Operation Mode
110
05/01 AWB2700-1384GB
RECORD Input Parameter
The CPU evaluates the actual length of the read diagnostic data:
If the length of RECORD is
X
ess than the number of returned data sets, the data is rejected
and the associated error code is entered in RET_VAL.
X
greater than or equal to the number of the returned data sets,
the data is loaded into the target area and the actual length is
entered as a positive value in RET_VAL.
Standard Slaves With More Than 20 bytes of Diagnostic
Data
For standard slaves where the number of standard diagnosis data
is between 241 and 244 bytes, the following must be considered:
If the length of RECORD is
X
less than 240 bytes, the data is rejected and the associated error
information is entered in RET_VAL.
X
greater than or equal to 240 bytes, the first 240 bytes are
transmitted into the target area and the corresponding overflow
bit is set in the data.
RET_VAL Output Parameter
X
If an error occurred while processing the function, the returned
value receives an error code
X
If no error occurred during transmission, RET_VAL contains the
length of the read data in bytes as a positive number.
Error information
The error information specific to SFC 13 is a small part of the error
information for SFC 59 (RD REC).
h
You must ensure that the actual parameters of RECORD match
each other during all call-ups that belong to the same task.
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