Horner APG QX351 OCS HEQX351C103 - Manual (Page 29)

MAN0892-03-EN CH.6
February 25, 2010 Page 29 of 109 #1039
CHAPTER 6: CAN COMMUNICATIONS
Note: For additional CAN information, refer to the CAN Networks manual (
MAN0799) on our website.
6.1
Overview
All QX351 OCS models provide a CAN networking port, which is implemented with a 5-pin connector.
The connector is labeled NET1.
Figure 6.1: NET 1 Connector
Like the MJ1 serial port, the NET1 port can be used for QX351 OCS programming by connecting it to the
CAN port of a PC running Cscape. The NET1 port also allows the QX351 OCS to exchange global data
with other OCS/RCS controllers and to access remote Network I/O devices (SmartStix Modules).
6.2
Port Description
The QX351 OCS NET1 port implements the ISO 11898-2 physical layer and the CAN 2.0A data link layer
standards. Also, since the NET1 port is powered by an internal isolated power supply, external CAN
power is not required.
6.3
CAN (NET1) Port Wiring
This section shows how the CsCAN port pins are assigned.
Figure 6.2: CsCAN Port Connector
Note: The V+ connection is not
required on the QX351 OCS.
The QX351 OCS network port is
self-powered. Supporting devices
can require this connection, and
this pin can be used to land the
extra wire required for those
devices.