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Chapter 6: can communications – Horner APG XL4 OCS User Manual

Page 27

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MAN0964-01-EN

CH.6

June 29, 2012

Page 27 of 122

CHAPTER 6: CAN COMMUNICATIONS


Note: For additional CAN information, refer to the CAN Networks manual (

MAN0799) on our

website.


6.1

Overview


All XL4 OCS models provide a CAN networking port, which is implemented with a 5-pin connector. The
connector is labeled CAN1.






Figure 6.1 – CAN1 Connector



Like the MJ1 serial port, the CAN1 port can be used for XL4 OCS programming by connecting it to the
CAN port of a PC running Cscape. The CAN1 port also allows the XL4 OCS to exchange global data
with other OCS/RCS controllers and to access remote Network I/O devices (SmartStix, Smart Blocks and
Smart Rail Modules).

6.2

Port Description


The XL4 OCS CAN1 port implements the ISO 11898-2 physical layer and the CAN 2.0A data link layer
standards. Also, since the CAN1 port is powered by an internal isolated power supply, external CAN
power is not required.