Experimental Physics and
Industrial Control System

Mark Rivers <[email protected]> · Mon, 17 Feb 2014 12:34:28 +0000

Hi Rémi,

Are you using the EPICS "modbus" module? It can be found here:
http://cars.uchicago.edu/software/epics/modbus.html

That has examples of how to build an IOC application, and has a test iocBoot directory to demonstrate it.

Basically your IOC xxxInclude.dbd file needs this line:
include "modbusSupport.dbd"

and your IOC Makefile needs this line:
PROD_LIBS += modbus

If you are using the "modbus" module and still have questions please let me know.

Mark

________________________________________
From: [email protected] [[email protected]] on behalf of faure [[email protected]]
Sent: Monday, February 17, 2014 3:05 AM
To: [email protected]
Subject: EPICS/ModbusTCP communication with Rockwell Micro 850 PLC

Hi,

I want to create an EPICS IOC to communicate with a Rockwell Micro 850
PLC via Modbus TCP, but I'm stuck at the start of the process.

Which template of MakeSupport.pl is recommended for Modbus TCP?

Where can I find "how to" document for Modbus TCP communication? It
helped myself perfectly for my firsts Serial and GPIB tries.

Thank you in advance.
Yours sincerely

--
Rémi FAURE
Assistant Engineer at Detectors and Instrumentation Department
LPSC Grenoble
53 av des Martyrs
38026 Grenoble Cedex
FRANCE
tel 33 (0)4 76 28 41 21
fax 33 (0)4 76 28 41 84
E-mail: [email protected]

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System