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LCN System Installation
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SCANNER APPLICATION MODULE INSTALLATION
Section 13
Provides for the installation of the Scanner Application Module.
13.1 PLACEMENT
The Scanner Application Module (SAM) can be placed where any other Five-Slot Module
can be placed.
13.2 GROUNDING
The Scanner Application Module is grounded the same as an Application Module in a
Five-Slot Module with the logic ground connected to the safety ground.
13.3 AC POWER
Connect the ac power cords attached to the module to the ac power strip in an LCN cabinet
or to the ac distribution box in a Universal Station or Universal StationX.
13.4 LCN CABLE CONNECTION
The LCN A and LCN B cables are connected to the LCN I/O board as any other node in the
system—see Section 3.
13.5 COMMUNICATION CONNECTION TO MC0
There are two types of connections between the SAM and MC0. If the RS232 interface is
used, the distance between the SAM and MC0 cabinet is limited to <20 meters (66 ft). If
the RS422 interface is used for longer distances, adapters that convert the RS232 signal to
RS422 level is used.
For RS232 interface, a shielded cable (Part No. 51196082-115) with three wires is
sufficient for the transmission. The cable is connected at the main cable strip of the cabinet.
For RS422 interface, a cable with five wires is sufficient for the transmission. RS422
transmits differential signals that are not sensitive to disturbances.
Current loop interfaces can also be used.
Содержание TotalPlant LCN
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