Commissioning - Burkert 8640 Operating Instructions Manual

F M
IELD BUS ODULE

Commissioning

DP bus
DP main
island
1
Extension batteries are connected to the valve batteries via the RIO interface.
2
When is a bit-by-bit separation of advantage?
If the number of inputs or outputs does not match the byte raster, byte-by-byte configuration
results in unused bits. In the case of a valve battery with 4 valves and a valve battery with 10
valves, that is e.g. 10 (4+6) bits with byte-by-byte configuration, since for the first valve battery 1
byte and for the second 2 bytes are necessary. With bit-by-bit separation, the outputs can now be
„pushed together". In this way only 2 bytes are required and 2 bits remain unused.
Through bit-by-bit concentration, the identifiers or slots (assignment in the process map) may be
freely selected in the configuration telegramme.
66 - 8640
PROFIBUS DP / V1
DP bus
DP main
island
Rio extension