Technical information

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Presentation,
description
Modicon M340 automation
platform
Multi-rack configuration
Composition of a multi-rack configuration
Multi-rack configurations are made up of standard BMX XBP pp00 racks. They
comprise:
2 racks maximum for a station with BMX P34 1000 processor
4 racks maximum for a station with BMX P34 2pp0 processor
Each rack is equipped with:
A BMX CPS ppppp power supply
A BMX XBE 1000 rack expansion module This module, inserted in the right-hand
end of the rack (
XBE slot, see page 1/10) does not occupy rack slots 00…11 (4, 6,
8 or 12 slots are still available)
The BMX XBE 1000 rack expansion modules are connected to each other by Bus
X cordsets
Bus X
The racks, distributed on the Bus X, are connected to each other by Bus X extension
cordsets
3 with a total length of 30 m maximum.
The racks are connected in a daisy chain using BMX XBC pp0K (1) Bus X extension
cordsets connected to the two 9-way SUB-D connectors
7 and 8 on the front panels
of the BMX XBE 1000 rack expansion modules
2.
Line terminators
4
Both expansion modules at the ends of the daisy chain must have a line terminator
4
TSX TLY EX on the unused 9-way SUB-D connector.
Note: The processor module is always positioned in the rack at address 0. However, in a Bus X
daisy chain, the order of the racks has no effect on operation. For example, the order of the daisy
chain can be 0-1-2-3, 2-0-3-1 or 3-1-2-0, etc.etc.
Description
The front panel of the BMX XBE 1000 rack expansion module comprises:
5 Safety screw for locking the module in its slot (at the far right-hand end of the rack)
6 A display block with 5 LEDs:
RUN LED (green): module in operation
COL LED (red): several racks have the same address, or rack address 0 does not
contain the
BMX P34 ppp0 processor module
LEDs 0, 1, 2 and 3 (green): rack address 0, 1, 2 or 3
7 A 9-way female SUB-D connector, marked Bus X, for the incoming Bus X cordset
3 connected to the upstream rack, or if it is the first rack, for the A/ line terminator
included in the TSX TLY EX
4 pack
8 A 9-way female SUB-D connector, marked Bus X, for the outgoing Bus X cordset
3 to the downstream rack, or if it is the last rack, for the /B line terminator included
in the TSX TLY EX
4 pack
On the right-hand side panel
A flap for accessing the 3 rack addressing micro-switches: 0…3.
Installation rules for BMX XBP ppp0 racks
Rules for installing racks in enclosures (see our website
www.schneider-electric.com).
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(1)
BMX XBC pp0K extension cordsets, length 0.8 m, 1.5 m, 3 m, 5 m or 12 m, with angled
connectors or TSX CBY p08K extension cordsets, length 1 m, 3 m, 5 m, 12 m, 18 m or
28 m, with straight connectors.
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I/O:
pages 2/2 and 2/14
Communication:
page 3/2
Software:
page 4/2
Ruggedized Modicon M340 modules:
page 6/2