Siemens 6RA7086-6KS22 Operating Instructions Manual page 548

Parameter list
PNU Description
G-SST 2 (RS485 on X172) (see also Section 8, Sheets G171 and G173 and Section 9)
P790 Selection of protocol for G-SST2 basic converter interface
*
0 Setting has no function
(G171)
2 USS protocol
(G173)
5 "Peer-to-peer" communication
6 Communication with the SIMOREG CCP
9 For internal factory test purposes
P791 Number of process data for G-SST2
*
When P790 = 0 or 9 is selected: Parameter is irrelevant
(G171)
(G173)
When USS protocol (P790=2) is selected: Number of PZD elements
0 No process data are expected or sent in the USS protocol
1...16 Number of process data words in USS protocol (same number
applies to transmission and receipt)
The received PZD elements (1 to max. 16) are available at
connectors (K6001 to K6016) and, in some cases, bit-serially at
binectors for "internal wiring" purposes.
The PZD elements to be transmitted (1 to max. 16) are selected
in parameters P794.01 to P794.16.
When peer-to-peer (P790= 5) is selected: Number of transferred words
0 Illegal setting
1...5 Number of transferred words
6...16 Illegal setting
P792 Length of parameter jobs for G-SST2
*
(G171)
This parameter is effective only when P790=2 (USS protocol).
0 No PKW data are expected or sent in the USS protocol.
3, 4 3 or 4 PKW data words are expected in the USS protocol and 3
or 4 PKW data words are also sent (for transmission of
parameter values).
127 Number of PKWs is determined by the telegram length
P793 Baud rate for G-SST2
*
1 300 baud
(G171)
2 600 baud
(G173)
3 1200 baud
4 2400 baud
5 4800 baud
6 9600 baud
7 19200 baud
8 38400 baud
9 56700 baud
11 93750 baud
13 187500 baud
11-84
Value range No. indices
[Unit] Factory
Steps setting
Type
0, 2, 5, 6, 9 Ind: None
1 FS=0
Type: O2
0 to 16 Ind: None
1 FS=2
Type: O2
0, 3, 4, 127 Ind: None
1 FS=127
Type: O2
1 to 13 Ind: None
1 FS=6
Type: O2
SIEMENS AG
SIMOREG DC Master Operating Instructions
05.05
See
Change
(Access /
Status)
P052 = 3
P051 = 40
Offline
P052 = 3
P051 = 40
Offline
P052 = 3
P051 = 40
Offline
P052 = 3
P051 = 40
Offline
6RX1700-0AD76