SIEMENS Energy & Automation 10-79
SIMOREG DC Master Base Drive Panel Operating Instructions
PNU
Description Value range
[Unit]
Steps
No. indices
Factory
setting
Type
See
Change
(Access /
Status)
P786
*
(G170)
USS bus address for G-SST1
This parameter is functional only when P780=2 (USS protocol). Address via
which the unit can be addressed in USS bus operation.
0 to 30
1
Ind: None
FS=0
Type: O2
P052 = 3
P051 = 40
Offline
P787
(G170)
Telegram failure time for G-SST1
The failure time set in this parameter is valid when setting P780=2 (USS
protocol) is selected.
0.000 No time monitoring
0.001...65.000 Time which may elapse between the receipt of two
telegrams addressed to the unit before a fault message
is activated.
Fault message F011 is activated if no valid telegram is received within this
time period.
Note:
The telegram monitoring function is active
• from the receipt of the first error-free telegram after connection of the
electronics power supply
• from the receipt of the first error-free telegram after the telegram monitor
has responded (i.e. monitoring timeout).
0.000 to 65.000
[s]
0.001s
Ind: None
FS=0.000
Type: O2
P052 = 3
P051 = 40
Offline
P788
*
(G170)
Source for activation of F011
Selection of binector which will activate fault message F011 when it
switches to log. "1"
2030 = binector B2030
2031 = binector B2031
2030, 2031 Ind: None
FS=2030
Type: L2
P052 = 3
P051 = 40
Offline
r789
(G170)
Diagnostic information for G-SST1
Free-running counter, overflow at 65535
i001: Number of error-free
telegrams
i002: Number of errored
telegrams:
Byte frame, parity, overrun or BCC error
i003: Number of byte frame errors
i004: Number of overrun errors
i005: Parity error
i006: STX error:
Start interval before STX not observed,
telegram residual transfer time not observed,
delay time of LGE character too long,
erroneous STX, i.e.
≠ 02
i007: Violation of telegram residual transfer time
i008: Block check error
i009: Incorrect telegram length:
With P782=3 or 4 only:
The length of the received telegram is
≠ P781 + P782
(Note: If the received values are correct, they will be processed
even when this error has been detected)
i010: Timeout error:
No valid telegram has been received for a period exceeding the
setting in P787. After the occurrence of a timeout error, this
counter is not activated again until the next valid telegram is
received.
Ind: 10
Type: O2
P052 = 3
G-SST 2 (RS485 on X172) (see also Section 8, Sheets G171 and G173 and Section 9 of Operating Instructions 6RX1700-0AD**)
P790
*
(G171)
(G173)
Selection of protocol for G-SST2 basic converter interface
0 Setting has no function
2 USS protocol
5 ”Peer-to-peer” communication
9 For internal factory test purposes
0, 2, 5, 9
1
Ind: None
FS=0
Type: O2
P052 = 3
P051 = 40
Offline
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