Siemens SIMATIC NET Manuel page 165

Twisted
DTE
Pair
OLM
Transceiver
TPTR
Industrial
twisted pair
line
Fig. 6: Redundant ring structure via the F/O ports of the OLM equipments
2.2 REDUNDANT RING STRUCTURE
(OLM)
Redundant ring structures can be built up
using the F/O ports of the OLM. Figure 6
shows a redundant ring structure with OLM
equipment. To do so, the first piece of
equipment is connected to the last in the
fiber optical line structure consisting of
OLM equipment (see above) and the redun-
dant fiber optical ring thus closed.
To do so, the redundant connection on pre-
cisely one of the two OLMs is to be connec-
ted to port 5, and port 5 switched to redun-
dant mode. Switchover is effected at the 6-
pin DIP switch on top of the equipment (see
chapter entitled "Functional description -
Controls".
Note: All the modules in the redundant
ring may only be connected to one another
via F/O runs (ECFL2, ECFL4).
2.3 COMBINATION WITH
CONCENTRATORS OF THE ASGE, MC
AND AMC FAMILY
The OLM/ELM can also be combined with
concentrators of the ASGE, MC and AMC
family. The OLM/ELMs can be cascaded for
example in line structures via the ECFL2,
ECFL4, ECTP3 etc. interface cards.
The number of pieces of equipment which
can be cascaded depends on the overall
network structure. Redundant ring
structures can be implemented via the F/O
ports (OLM).
Hints on calculating the maximum network
expansion can be found in the Ethernet
manual, Chapter 8 (see „Technical Data" for
order number).
OLM
A maximum of 11 OLMs might be cascaded
in a fiber optical line.
Here the total line length between the termi-
nal equipments with the maximum distance
might not exceed 1180 m.
The total line length is determined by the
total sum of all F/O line sections and the
two ITP lines to the terminal equipments.
ELM
A maximum of 13 OLMs/ELMs might be
cascaded in an ITP line, with a maximum
length of 100 m per ITP line.
A maximum of 2050 m total line length is
allowed between two terminal equipments.
Industrial
twisted pair
OLM OLM OLM
Ring
F/O line with redundant run
3. Assembly, startup procedure
and dismantling
3.1 UNPACKING, CHECKING
– Check whether the package was delivered
complete (see scope of delivery).
– Check the individual parts for transport
damage.
Warning!
v
Use only undamaged parts!
3.2 ASSEMBLY
The equipment is delivered in a ready-to-
operate condition. The following procedure
is appropriate for assembly:
– Check whether the switch pre-setting suits
your requirements.
– Pull the terminal block off the OLM/ELM
and wire up the supply voltage and indica-
tor lines.
– Fit the OLM/ELM on a 35 mm standard bar
to DIN EN 50 022.
– Suspend the upper snap-in hook of the
OLM/ELM in the standard bar, insert a
screwdriver horizontally under the hou-
sing into the locking slide pull this down-
wards (cf. Fig. 8, Dismantling) and press
the bottom of the module onto the stan-
dard bar until it locks in position (Fig. 7).
– Fit the signal lines.
Fig. 7: Assembling the OLM/ELM
DTE
line
TPTR
Port 5
Port 4
Notes:
– The housing of the OLM/ELM is grounded
via the standard bar. There is no separate
ground connection.
– The screws in the lateral half-shells of the
housing may not be undone under any
circumstances.
– The shielding ground of the industrial twi-
sted pair lines which can be connected is
electrically connected to the housing.
3.3 STARTUP PROCEDURE
You start up the OLM/ELM by connecting
the supply voltage via the 5-pin terminal
block. Lock the terminal block with the
locking screw at the side.
3.4 DISMANTLING
To take the OLM/ELM off the standard bar,
insert a screwdriver horizontally under the
housing into the locking slide, pull it (with-
out tipping the screwdriver) downwards
and fold the OLM/ELM upwards (Fig. 8).
SIMATIC NET OLM f. Industrial Ethernet
P 1 P 2
DA CD
LS1
LS2
LS3
LS4
LS5
Port 1
Port 2 Port 3
locking slide
Fig. 8: Dismantling the OLM/ELM
4. Further support
In the event of technical queries, please talk
to your Siemens contact in the
agencies/offices responsible for looking
after you. You can find the addresses
– in our IK10 catalogue
– and on the Internet
(http://www.ad.siemens.de)
Our hotline is also at your disposal:
Tel: +49 911 895-7000 (Fax: -7001)
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