Connecting the controller to your network, Point-to-point connection, 10 connecting the controller to your network – Nematron Pointe Controller User Manual
Page 103: 1 point-to-point connection
Pointe Controller User Guide
Chapter 4: System Design and Installation
101
4.10 Connecting the Controller to Your Network
An Ethernet network connection is used to download finished control
applications from your PC to the Pointe Controller unit. It is also used to monitor
the unit's runtime performance and to share Modbus TCP data between different
control devices. An RJ-45 Ethernet port is located at the left side of the Pointe
Controller unit.
NOTE: The following sections discuss interconnection using the term hub. Any of
the configurations apply equally well to a switch.
In an Pointe Controller system, there should be a single master, the host PC. All
physical media interconnections should be made to commercial building wiring
standards EIA/TIA-568 and the specification for Unshielded Twisted Pair cable
defined in the TIA/EIA TSB40-A specifications. For best case 10Base-T wiring, we
recommend using all CAT5 type cabling for connecting your Pointe Controller
network.
4.10.1 Point-to-Point Connection
The simplest system is a point-to-point connection. Point to point connections, as
illustrated below, require only a crossover type patch cable.
An Ethernet crossover cable, shown below, connects the transmitter on one side,
with the receiver on the other. This is a category 5 type UTP crossover patch cable.
Cable length is limited to less than 100 meters.