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Con nect the OIT to the PLC or Con trol ler
Connecting multiple PLC/controllers serially using daisy chaining
The RS485 4-wire and RS485 2-wire communications ports of the Silver Series family supports multi-drop
connections. A daisy-chain connection is made from the OIT to the first PLC/controller, and then from the first
PLC/controller to the second and so on (see below). The network may need biasing resistors – refer to the
PLC/controller documentation for more information.
Silver Plus Series OIT
Connecting one or more PLC/controllers via Ethernet
The Silver Series OITs have a single RJ45 Ethernet connector, configured for 10BaseT and 100BaseT operation.
This port is for both communicating with a PC for configuration purposes, as well as for communicating with
supported Ethernet PLCs and protocols.
The connector is wired just like the RJ45 Ethernet connector on a PC. The Ethernet connection to a PLC/controller
will vary with each PLC/controller. Some will require a straight-through connection, while others require a
crossover connection. See Maple Systems' website for cable drawings of Ethernet cables.
To connect a single PLC/controller to an OIT:
1.
Attach one end of the Ethernet cable to the RJ45 connector on the OIT
2. Attach the other end to the RJ45 connector on the PLC/controller
A router or switch is required to connect multiple PLCs/controllers to a single OIT. In general, standard
straight-through type cables can be used when connecting to a PLC/controller through a router or switch. Some
routers and switches may be auto-sensing. In this case, either type of cable may be used.
PLC
Refer to the Help Section of EasyBuilder-5000, under the How do I Section... for more
information.
RS-485
PLC
PLC
33
PLC
1010-1007W, Rev 06
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