Slave-To-Slave Communication; Acyclically Reading And Writing Inverter Parameters - Siemens SINAMICS G120D Series Operating Instructions Manual

Write request: Assign digital input 2 with the function ON/OFF1 (p0840[1] = 722.2)
In order to link digital input 2 with ON/OFF1, you must assign parameter p0840[1] (source,
ON/OFF1) the value 722.2 (DI 2). To do this, you must fill the telegram of the parameter
channel as follows:
● PKE, bit 12 ... 15 (AK): = 7 hex (change, parameter value (field, word))
● PKE, bit 0 ... 10 (PNU): = 348 hex (840 = 348 hex, no offset, as 840 < 1999)
● IND, bit 8 ... 15 (subindex): = 1 hex (CDS1 = index1)
● IND, bit 0 ... 7 (page index): = 0 hex (offset 0 ≙ 0 hex)
● PWE1, bit 0 ... 15: = 2D2 hex (722 = 2D2 hex)
● PWE2, bit 10 ... 15: = 3F hex (drive object - for SINAMICS G120, always 63 = 3f hex)
● PWE2, bit 0 ... 9: = 2 hex (index of parameter (DI 2 = 2))
Figure 6-6 Telegram, to assign DI 2 with ON/OFF1
"Reading and writing parameters" application example
See: Reading and writing parameters via PROFIBUS
(http://support.automation.siemens.com/WW/view/en/8894584).
6.2.1.5

Slave-to-slave communication

"Direct data exchange" is sometimes called "slave-to-slave communication" or "data
exchange broadcast". Here, slaves exchange data without any direct involvement of the
master.
You can find more information in: "Manuals for your inverter in the fieldbus function manual
(Page 316)".
6.2.2

Acyclically reading and writing inverter parameters

The inverter supports the writing and reading of parameters via acyclic communication:
● For PROFIBUS: Up to 240 bytes per write or read request via data set 47
● For PROFINET: Write or read requests via B02E hex and B02F hex
You will find more information on acyclic communication in the Fieldbus Function Manual;
see also section: Manuals for your converter (Page 316).
Converter with control units CU240D-2
Operating Instructions, 04/2015, FW V4.7.3, A5E34262100B AB
6.2 PROFIdrive profile for PROFIBUS and PROFINET
Adapt fieldbus configuration
105