Siemens SIMATIC ET 200pro - Acyclic Communication

Configure the fieldbus
7.1 PROFIdrive profile for PROFIBUS and PROFINET
SIMATIC ET 200pro FC-2 converter
Operating Instructions, 04/2015, FW V4.7.3, A5E34257324B AB
89
Procedure
Proceed as follows to extend a telegram:
1. Set p0922 = 999.
2. Interconnect additional PZD send words and PZD receive words with signals of your
choice via parameters r2050 and p2051.
You have extended the telegram.
Parameter
Description
p0922
PROFIdrive telegram selection
999: Free telegram (message frame) configuration
r2050[0…3]
PROFIdrive PZD receive word
Connector output to interconnect the PZD (setpoints) in the word format received
from the PROFIdrive controller.
p2051[0…3]
PROFIdrive PZD send word
Selection of the PZD (actual values) in the word format to be sent to the PROFIdrive
controller.
Selection of the PZD (actual values) in the word format to be sent to the PROFIdrive
controller. For further information refer to the function block diagrams 2468 and 2470 of the
List Manual.
7.1.2
Acyclic communication
The inverter supports the following types of acyclic communication:
● For PROFIBUS:
acyclic communication via data set 47
● For PROFINET:
acyclic communication via B02E hex and B02F hex
The maximum data length per request is 240 bytes.
Note
Precondition for error-free acyclic communication
•
Use the USB interface of the frequency converter if you use STARTER or SCOUT to
access the device in operation.
•
If you access the frequency converter using STARTER or SCOUT via the interface
module, you must switch the higher-level control into the STOP condition, as otherwise,
faults can occur when executing the tasks from the control system and from
STARTER/SCOUT.