Servicing - Siemens SIMOREG DC Master 6RA7028-6DS22 Operating Instructions Manual

Start-Up
A total of five PPO types are defined:
PKW section
PKE
st
1
word
PPO
1
PPO
2
PPO
3
PPO
4
PPO
5
PKW: Parameter ID value
PZD: Process data
PKE: Parameter identifier
The acyclic channel MSCY_C2 (see diagram above) is used exclusively for the start-up and
servicing of SIMOVIS.
Mechanisms for processing parameters via the PROFIBUS:
The PKW mechanism (with PPO types 1, 2 and 5 and for the two acyclic channels MSAC_C1 and
MSAC_C2) can be used to read and write parameters. A parameter request job is sent to the drive
for this purpose. When the job has been executed, the drive sends back a response. Until it
receives this response, the master must not issue any new requests, i.e. any job with different
contents, but must repeat the old job.
The parameter section in the telegram always contains at least 4 words:
Parameter identifier
The parameter value is entered as PWE2 (also as PWE1 with double words) in write jobs.
Index IND contains the value zero for non-indexed parameters and the appropriate index value for
indexed parameters. An index value of 255 means that the job refers to all indices of the
corresponding parameter. The parameter values for all indices of the parameter must therefore be
transferred with a write job. In contrast, the drive returns all index values in the response telegram
for a read job.
The parameter identifier defines what task should be performed by which parameter. It is a 16-bit
value consisting of the following areas:
Job/response identifier
Bits 0 to 10 contain the number of the relevant parameter. Bits 12 to 15 contain the job identifier or
the response identifier as defined in the following list:
7-22
IND PWE PZD1
STW
1
ZSW
1
nd rd th st
2 3 4 1
word word word word
IND:
PWE: Parameter value
STW: Control word
Index
PKE IND
PZD section
PZD2 PZD3 PZD4 PZD5 PZD6 PZD7 PZD8 PZD9
HSW
HIW
nd rd th th
2 3 4 5
word word word word
Index
Parameter value 1
PWE1 (H word)
Parameter number (PNU)
th th th
6 7 8
word word word
ZSW Status word
HSW: Main setpoint
ISW: Main actual value
Paramter value 2
PWE2 (L word)
SIEMENS AG
SIMOREG DC Master Operating Instructions
02.00
PZD
10
th th
9 10
word word
6RX1700-0AD76