Communication
6.4 Communication via PROFIBUS
Control Units CU240S
150
Operating Instructions, 07/2008 - FW 3.2, A5E00766042B AD
P0918 PROFIBUS Address
● If address 0 is set on the DIP-switches of the Control Unit (default setting), then the
PROFIBUS DP address can be changed in parameter P0918. Valid settings are 1 to 125
(default = 3).
● DIP-switch address settings have priority to P0918 settings. That means if a valid
PROFIBUS DP address is set via DIP-switches, the settings of P0918 will be ignored. In
this case, the parameter displays the PROFIBUS DP address as set on the DIP-switches.
P0700 and P1000 selection of command and setpoint source
● Command and setpoint source can be quickly selected via P0700 and P1000.
P0922 Selection of PROFIBUS standard telegram
● For failure-free operation, you must select the correct type of telegram. For details, refer
to section "Cyclic Communication" of this manual or the Parameter Manual.
r2050 and P2051 BICO
● Much greater flexibility is afforded by the interconnection of process data using
binectors/connectors.
● Detailed connection of setpoints and actual values to and from the PROFIBUS DP
interface is parameterized in r2050 and P2051.
● The following table shows the parameters specific to the PROFIBUS DP interface relating
to the connection of process data:
Table 6-29 Parameters for flexible interconnection of process data
Telegram
PZD1
STW/ZS
W
PZD2
HSW/HIW
PZD3
PZD4
PZD5
PZD6
Link values for setpoints
master to inverter
r2050.00 r2050.01 r2050.02 r2050.03 r2050.04 r2050.05
Link parameters for actual
values inverter to master
P2051.00 P2051.01 P2051.02 P2051.03 P2051.04 P2051.05
Note
r2050 also acts as a display parameter through which the setpoints received by the
PROFIBUS DP interface can be checked.
P2041 PROFIBUS DP functions
A number of advanced property settings for the PROFIBUS DP interface can be
accomplished using the indexed parameter P2041.
For most applications, however, the defaults values are adequate (value = 0). The following
table shows the property setting options.