Gateway 312785C Appendix a DeviceNet Slave Communication, Overview, Introduction

Appendix A: DeviceNet™ Slave Communication

Appendix A: DeviceNet™ Slave Communication

Overview

This appendix describes the Gateway’s support for Devi- ceNet and details the configuration steps necessary to use this feature. It does not provide a detailed descrip- tion of DeviceNet, but only a brief introduction, neces- sary to define the terms that are used throughout the remainder of this document.

Introduction

DeviceNet is a low-level network using the Controller Area Network (CAN) technology, to provide communica- tion between a range of industrial devices, from simple devices such as sensors and actuators, to high-level devices such as controllers and HMIs.

•CAN_H

Position 4 of the pluggable connector provides the CAN_H bus line (active high). This terminal is iso- lated from the Graco Gateway.

•V+ (optional 24 Vdc)

Position 5 of the pluggable connector is provided for optional 24 Vdc connections. This position is avail- able only to tie 24 Vdc wires together. The Devi- ceNet option card neither provides or uses 24 Vdc power through this connection. The V+ position is not connected to any circuitry internal to the Devi- ceNet option card or Graco Gateway.

DeviceNet Port Protocols

The DeviceNet option card has one DeviceNet port. See FIG. 30. The port may be configured for various Devi- ceNet protocols. Contact Graco Technical Assistance for currently supported protocols.

Also see Appendix A: DeviceNet™ Slave Communi- cation on page 42.

DeviceNet Option Card Pin Outs

•V-

Position 1 of the pluggable connector provides a CAN ground connection. This terminal is isolated from the Graco Gateway.

•CAN_L

Position 2 of the pluggable connector provides the CAN_L bus line (active low). This terminal is iso- lated from the Graco Gateway.

•DRAIN (optional)

Position 3 of the pluggable connector is provided for optional drain connections. This position is available only to tie drain wires together or to earth ground.

There is no internal connection to earth ground. The DRAIN position is not connected to any circuitry internal to the DeviceNet option card.

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