BST ekr CON 600 net - Connector Assignment

Design and Function
2
ekr CON 600 net – Process Data Exchange via Profibus 15/79
2.3.3.2 Acyclic Data Traffic
The function extensions to Profibus-DP, called DPV1 for short,
provided for in the Profibus standard IEC 61158, supplement the
cyclic communication functions of Profibus-DP with the possibility
of acyclic data transmission.
The acyclic data traffic between the Profibus class1 master (cus-
tomer control system) and the slaves (e.g. ekr CON 600net web
guiding controller) is used for events that are not repeated con-
tinuously. The acyclic services are handled with low priority, paral-
lelly and additionally to the cyclic process data transfer. This min-
imizes the time influence on the high-priority cyclic process data
transmission. The acyclic data traffic allows parameterization of
the web guiding controller or reading out status information.
The acyclic data are not described in the GSDML file. You can find
an explanation of these data in the chapter Acyclic Data, page
44.
2.3.3.3 Data Types Used
Data Type Data Width Sign Value Range
Unsigned8 8 Bit = 1 Byte Unsigned 0 … 255
Unsigned16 16 Bit = 2 Byte Unsigned 0 … 65,535
SInteger16 16 Bit = 2 Byte Signed -32,768 … 32,767
Unsigned32 32 Bit = 4 Byte Unsigned 0 … 2
32
SInteger32 32 Bit = 4 Byte Signed -(2
31
) … (2
31
-1)
UInteger32 32 Bit = 4 Byte Unsigned 0 … 2
32
Char[16] 128 Bit = 16 Byte — Unicode UTF-8