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Connection to a fieldbus
6.3 Communication via PROFIBUS
Inverter with CU240B-2 and CU240E-2 Control Units
Operating Instructions, 07/2010, FW 4.3.2, A5E02299792B AA
111
6.3.2
Communication parameters
Table 6- 4
The most important parameters
Parameter Description
p0700 = 6 Command source selection
Selecting the fieldbus as command source
p1000 = 6 Speed setpoint selection
Selecting the fieldbus as setpoint source
You set the command and setpoint source
during the basic commissioning, see
Commissioning (Page 55)
PROFIdrive telegram selection (factory setting for CU with PROFIBUS interface: 1)
Set the send and receive telegram, see
p0922
1:
20:
350:
352
353:
354:
999:
Standard telegram 1, PZD-2/2
Standard telegram 20, PZD-2/6
SIEMENS telegram 350, PZD-4/4
SIEMENS telegram 352, PZD-6/6
SIEMENS telegram 353, PZD-2/2, BW-PKW-4/4
SIEMENS telegram 354, PZD-6/6, BW-PKW-4/4
Free telegram configuring with BICO
Using parameter p0922, you automatically interconnect the corresponding signals of the
inverter to the telegram.
This BICO interconnection can only be changed, if you set p0922 to 999. In this case, select
your required telegram using p2079 and then adapt the BICO interconnection of the signals.
Table 6- 5
Advanced settings
Parameter Description
p2079
PROFIdrive PZD telegram selection extended
Contrary to p0922, using p2079, a telegram can be set and subsequently extended.
For p0922 < 999, the following applies: p2079 has the same value and is locked. All of
the interconnections and extensions contained in the telegram are locked.
For p0922 = 999, the following applies: p2079 can be freely set. If p2079 is also set to
999, then all interconnections can be set.
For p0922 = 999 and p2079 < 999, the following applies: The interconnections
contained in the telegram are locked. However, the telegram can be extended.
For further information, please refer to the Parameter Manual.