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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
113
Table 6- 8
Telegram status in the inverter
Control ⇒ inverter
Inverter ⇒ control
Process data
item
Status of the received
word
Bits 0…15 in the
received word
Defining the word to be
sent
Status of the sent word
PZD01
r2050[0]
r2090.0 … r2090.15
p2051[0]
r2053[0]
PZD02
r2050[1]
r2091.0 … r2091.15
p2051[1]
r2053[1]
PZD03
r2050[2]
r2092.0 … r2092.15
p2051[2]
r2053[2]
PZD04
r2050[3]
r2093.0 … r2093.15
p2051[3]
r2053[3]
PZD05
r2050[4]
-
p2051[4]
r2053[4]
PZD06
r2050[5]
-
p2051[5]
r2053[5]
PZD07
r2050[6]
-
p2051[6]
r2053[6]
PZD08
r2050[7]
-
p2051[7]
r2053[7]
Select telegram
Select the communication telegram using parameters p0922 and p2079. The following
dependencies apply:
● P0922 < 999:
For p0922 < 999, the inverter sets p2079 to the same value as p0922.
With this setting, the inverter defines the length and the content of the telegram. The
inverter does not permit any changes to the telegram.
● p0922 = 999, p2079 < 999:
For p0922 = 999, select a telegram via p2079.
Also with this setting, the inverter defines the length and the content of the telegram. The
inverter does not permit any changes to the telegram content. However, you can extend
the telegram.
● p0922 = p2079 = 999:
For p0922 = p2079 = 999, enter the length and the content of the telegram.
With this setting, you can define the telegram length via the central PROFIdrive
configuration in the master. You define the telegram contents via the signal
interconnections of the BICO technology. Using p2038, you can define the assignment of
the control word according to SINAMICS or VIK/NAMUR.
You will find more details on the interconnection of command and setpoint sources,
depending on the selected protocol, in the List Manual in function block diagrams 2420 to
2472.
6.3.3.1
Control and status words
Description
The control and status words fulfill the specifications of PROFIdrive profile version 4.1 for
"speed control" mode.