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Appendix B: Profibus
™
DP Slave Communication
312785C 57
Appendix B: Profibus
™
DP Slave Communication
Overview
This appendix describes the Gateway’s support for Pro-
fibus DP and details the configuration steps necessary
to set up a Graco Gateway with an S7300 PLC,
CPU315-2DP via Profibus. It does not provide a
detailed description of Profibus, but only a brief introduc-
tion, necessary to define the terms that are used
throughout the remainder of this document.
Introduction
Profibus DP stands for “Profibus for Decentralized
Peripherals”. Profibus DP is a device level bus that sup-
ports both analog and discrete signals. It has wide-
spread usage for such items as remote I/O systems,
motor control centers, and variable speed drives. Profi-
bus DP communicates at speeds from 9.6 Kbps to 12
Mbps over distances from 100 to 1,200 meters.
The protocol supported by the Profibus DP option card
is Profibus DP Slave. Therefore, the Graco Gateway
must be linked to a Profibus network with a PLC.
Profibus Port Protocols
The Profibus option card has one Profibus port. See
F
IG. 47.
Also see Appendix B: Profibus
™
DP Slave Communi-
cation on page 57.
F
IG. 47: Profibus PLC Connection
TI13964a
Profibus Option
Card
PLC Connection