Siemens 6RA7086-6KS22 Operating Instructions Manual page 627

05.05
PNU Description
U741 SLB Telegram failure time
(2741) The telegram failure time defines the period within which a valid
synchronizing telegram (SYNC telegram) must be received. Failure of any
*
SYNC telegram to arrive within the set period indicates a communications
error. The unit activates fault message F015 (see also U753) as a function
of U741.
(Z121)
0 = No telegram failure monitoring
i001: For first SLB in unit
i002: Reserved
U742 SLB Transmitter power
(2742) Setting of power of fiber optic transmitter
*
1 = 0m to 15m (length of plastic fiber optic cable)
2 = 15m to 25m (length of plastic fiber optic cable)
3 = 25m to 40m (length of plastic fiber optic cable)
(Z121)
Operation at a lower transmitter power increases the service life of the
transmitter and receiver modules. Reducing the transmitter power also
allows hidden fault sources on the transmission path (e.g. poor contacts on
fiber optics) to be detected.
i001: For first SLB in unit
i002: Reserved
U744 SLB Selection of active SLB board
(2744) Selection of the active SIMOLINK board (SLB) when two SLBs are installed
in one unit.
*
0 = Binector B0000
1 = Binector B0001 etc.
A binector value of 0 means "SLB in low slot is active".
A binector value of 1 is reserved for "SLB in high slot is active".
U745 SLB No. of channels
(2745) Number of channels which dispatcher provides for each transceiver.
Together with U746, the number of channels determines the number of
*
addressable nodes.
This parameter is relevant only for the dispatcher.
(Z121)
i001: For first SLB in unit
i002: Reserved
U746 SLB Cycle time
(2746) The cycle time is the period required for all telegrams to be passed around
the SIMOLINK ring. Together with U745, the cycle time determines the
*
number of addressable nodes.
This parameter is relevant only for the dispatcher.
(Z121)
i001: For first SLB in unit
i002: Reserved
Caution:
Settings 0.20 ms to 0.99 ms are permissible only if option S00 is not
activated. Otherwise F059 with fault value 3 is output.
If option S00 (free function blocks) is not activated and if an SLB cycle time
of < 1.00 ms is set in parameter U746, connectors K7001 to K7008 are
updated immediately every time a telegram is received. The other
connectors (K7009 to K7016) and binectors B7100 to B7915 are updated
only once in each computation cycle (= 1/6 line period). In addition, the
connectors selected in U751.001 to U751.008 are read with every transmit
telegram and the relevant up-to-date value transmitted. The connectors
selected in parameters U751.009 to U751.016 are read only once in each
computation cycle and written to the transmit buffer of the SLB.
[A cycle time of < 1.00 ms can be set in SW 1.9 and later]
SIEMENS AG 6RX1700-0AD76
SIMOREG DC Master Operating Instructions
Value range
[Unit]
Steps
[SW 1.5 and later] 0 to 6500
[ms]
1
[SW 1.5 and later] 1 to 3
1
All binector numbers
[SW 1.5 and later]
[SW 1.5 and later] 1 to 8
1
0.20 to 6.50
[SW 1.5 and later]
[ms]
0.01
Parameter list
No. indices See
Factory Change
setting (Access /
Type Status)
Ind: 2 P052 = 3
FS=0 P051 =40
Type: O2 Online
Ind: 2 P052 = 3
FS=3 P051 =40
Type: O2 Online
Ind: None P052 = 3
FS=0 P051 =40
Type: L2 Online
Ind: 2 P052 = 3
FS=3 P051 =40
Type: O2 Offline
Ind:2 P052 = 3
FS=1.20 P051 =40
Type: O2 Offline
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