Burkert 8640, Operating Instructions Manual

Page: 70 / 196

68 - 8640
F
IELD BUS
M
ODULE
PROFIBUS DP / V1
Example:
Physically present Configuration Effect
16 valves 1 Byte Only valves 1 to 8 may be communicated to
2 Byte Valves 1 to 16 may be communicated to
3 Byte Valves 1 to 16 may be communicated to,
1byte in the process map is occupied but unused
4 Byte Configuragtion error
Configuration of the valve batteries without extension batteries
The settings of the desired configuration, i.e. the setting of different identifiers, is generally done with the
aid of the GSD file. Up to 7 identifiers (slots) may be allocated.
With the writing of the configuration, the number of input and output bytes in the process map is set and
the permissible limits checked. By using different identifiers, the user has the possibility of freely
assigning the input and output bytes in the process map.
One valve battery has a maximum of 32 inputs and a maximum of 24 outputs. This corresponds to a
maximum of 4 input bytes and a maximum of 3 output bytes. For this reason, there may never be
configured in the process map of a valve battery more than the abovementioned number of input or output
bytes.
While observing the abovementioned limits (32 inputs, 24 outputs, 4 input bytes, 3 output bytes), it is
nevertheless possible to configure both fewer and more input or output bytes than are actually physically
present on the valve battery.
Manual configuration
If no GSD file is available, manual configuration must be performed. The following data apply. A
configuration telegramme may contain one or more identifiers, allowing the user to allocate them freely.
The identifiers are built up as follows:
Bit 7 Bit 6 Bit 5 - 4 Bit 3 - 0
Consistency
0 = Byte/Word
1 = entire length
Bytes/Words
0 = Bytes
1 = Words (2 Byte)
Input/Output
00 = special identifier format
01 = input
10 = output
11 = input/output
Lenght (number) of data
0000 = 1 Byte/Word
:
0010 = 3 Bytes/Words
:
1111 = 16 Bytes/Words
Hex Decimal Meaning
10 016 1 Byte input, consistency via Byte
11 017 2 Byte input, consistency via Byte
12 018 3 Byte input, consistency via Byte
13 019 4 Byte input, consistency via Bytee
20 032 1 Byte output, consistency via Byte
21 033 2 Byte output, consistency via Byte
22 034 3 Byte output, consistency via Byte
00 000 Reserve (blank))