Siemens SINAMICS G120P - Page 123

Communication via RS485
5.3 Communication via USS
Fieldbuses
Function Manual, 04/2018, FW V4.7 SP10, A5E34229197B AE
121
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 (page index): = 0 hex
(offset 0 ≙ 0 hex)
●
IND, bit 0 … 7 (subindex): = 1 hex
(command data set, CDS1 = index1)
●
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 or bit number of the parameter: DI 2 = r0722.2)
Figure 5-6 Telegram, to assign DI 2 with ON/OFF1