
Description of the DP Functions, Data, and Error Codes
DP Base Programming Interface for CP 5613/CP 5614
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4.7.1 Structure of the General Slave Parameters
Overview
The components are bytes. They are byte-aligned, in other words, they are located
one immediately following the other. The parameters shown on a gray background
are only relevant for DP slaves with DP-V1 additional functions. Where necessary
the parameters are described in more detail later in the section.
Name Meaning (see below)
Sl_Flag Activates fail-safe mechanisms etc.
Slave_Typ Specified by the vendor
Max_Diag_Data_Len Max. length of the diagnostic data
Max_Alarm_Len Max. length of alarm data
Max_Channel_Data_Len Max. length of DPC1 frame
Diag_Upd_Delay Diagnostic counter
Alarm_Mode Max. number of simultaneous alarms
Add_Sl_Flag Data for AUTOCLEAR etc.
Bytes 1 to 6 reserved
Byte Structure
In some cases, in the following data structures single bits in the bytes are
significant. The bits are numbered as follows: the least significant bit has the
number 0 and the most significant bit has the number 7.
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