Connection to a fieldbus
6.2 Setting the bus address via DIP switch
Inverter with CU240B-2 and CU240E-2 Control Units
104 Operating Instructions, 07/2010, FW 4.3.2, A5E02299792B AA
Control and status words
Control and status words always comprise two bytes. Depending on the control type, the two
bytes are differently interpreted as higher or lower significance. An example for transferring
control and status words with a SIMATIC control is provided in Chapter STEP 7 program
exam
ple for cyclic communication (Page 124).
6.2 Setting the bus address via DIP switch
You can set the bus address via DIP switch or via parameter. The DIP switches have priority
over the parameter.
The inverter always uses the parameter to make the setting if all DIP switches for the bus
address are at "OFF" (0) or "ON" (127) or if the address is not valid (e.g. 124 for USS).
Setting via parameter is described in the sections for the particular fieldbus interfaces.
You can find the position of the DIP switches at the inverter in Interfaces, connectors,
swit
ches, terminal blocks and LEDs of the CU (Page 51).
Table 6- 1 Examples of setting the bus addresses
DIP switch 1 2 3 4 5 6 7
Address = added values of the DIP switches
that are set to ON.
1 2 4 8 16 32 64
Example 1:
Address = 10 = 2 + 8
ON
OFF
Example 2:
Address = 39 = 1 + 2 + 4 + 32
ON
OFF
To Next Page
Loading...
