6.5.7 Examples for using the parameter channel
Read request: Read out serial number of the Power Module (p7841[2])
To obtain the value of the indexed parameter p7841, you must fill the telegram of the parameter
channel with the following data:
● PKE, bit 12 … 15 (AK): = 6 (request parameter value (field))
● PKE, bit 0 … 10 (PNU): = 1841 (Parameter number without offset)
Parameter number = PNU + offset (page index)
(7841 = 1841 + 6000)
● IND, bit 8 … 15 (subindex): = 2 (Index of the parameter)
● IND, bit 0 … 7 (page index): = 90 hex (offset 6000 ≙ 90 hex)
● Because you want to read the parameter value, words 3 and 4 in the parameter channel
for requesting the parameter value are irrelevant. They should be assigned a value of 0,
for example.
3DUDPHWHUFKDQQHO
3:(KLJKUGZRUG3:(ORZWKZRUG,1'QGZRUG
3DJHLQGH[3DUDPHWHUQXPEHU6XELQGH[3DUDPHWHUYDOXH
3.(VWZRUG
'ULYHREMHFW,QGH[$.
Figure 6-15 Telegram for a read request from p7841[2]
Write request: Change restart mode (p1210)
The restart mode is inhibited in the factory setting (p1210 = 0). In order to activate the automatic
restart with "acknowledge all faults and restart for an ON command", p1210 must be set to 26:
● PKE, bit 12 … 15 (AK): = 7 (change parameter value (field, word))
● PKE, bit 0 … 10 (PNU): = 4BA hex (1210 = 4BA hex, no offset, as 1210 < 1999)
● IND, bit 8 … 15 (subindex): = 0 hex (parameter is not indexed)
● IND, bit 0 … 7 (page index): = 0 hex (offset 0 corresponds to 0 hex)
● PWE1, bit 0 … 15: = 0 hex
● PWE2, bit 0 … 15: = 1A hex (26 = 1A hex)
3DUDPHWHUFKDQQHO
3:(KLJKUGZRUG3:(ORZWKZRUG,1'QGZRUG
3DJHLQGH[3DUDPHWHUQXPEHU6XELQGH[3DUDPHWHUYDOXHELW3DUDPHWHUYDOXHELW
3.(VWZRUG
$.
Figure 6-16 Telegram, to activate the automatic restart with p1210 = 26
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)
Advanced commissioning
6.5 Drive control via PROFIBUS or PROFINET
Converter with the CU230P-2 Control Units
Operating Instructions, 09/2017, FW V4.7 SP9, A5E34257946B AE 229
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