Re: Eurotherm modbus support

[Mark Rivers via Tech-talk <tech-talk at aps.anl.gov>]

Thanks for sharing the source.

Can you post the errors you get when renaming the .c file to .cpp?

It looks like the C file is mainly a convenience function for creating the Modbus drivers. Most if not all of that could probably be done in the startup script instead.  But I can see what needs to be done to make it work with the current version of the Modbus driver.

Mark

Sent from my iPhone

On Aug 26, 2022, at 8:41 AM, William Kirstaedter <kirstaedter at fhi-berlin.mpg.de> wrote:



Hi Mark,

unfortunately, it doesnt work, various casts fail.

I've saved a dump here: https://gitlab.fhi.mpg.de/kw/eurotherm2k

(should be externally accessible)

William Kirstaedter
PP&B Computer Support Group
Fritz-Haber-Institut Berlin

Am 26.08.22 um 14:40 schrieb Mark Rivers:

Hi William,

You can probably just rename eurothermModbus.c to eurothermModbus.cpp.  See if that works.

How does eurothermModbus use drvModbusAsyn?

Mark

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From: Tech-talk on behalf of William Kirstaedter via Tech-talk
Sent: Friday, August 26, 2022 7:20 AM
To: tech-talk at aps.anl.gov
Subject: Eurotherm modbus support

Hi,

unfortunately the DLS site for the eurotherm support module is not available anymore...
(http://controls.diamond.ac.uk/downloads/support/eurotherm2k/)

does anybody still maintain eurotherms?

I kinda converted the 1-22 release to work with my environment and am now running into a C / C++ error...
newer asyn versions reference vector.h which is C++ while my eurotherm support file is C, which is bad because the C compiler doesnt know about the C++ vector.h ...

In file included from /home/epics/EPICS/epics-support/modbus/include/drvModbusAsyn.h:15,
                 from ../eurothermModbus.c:25:
/home/epics/EPICS/epics-support/asyn/include/asynPortDriver.h:4:10: fatal error: vector: No such file or directory
 #include <vector>
          ^~~~~~~~
compilation terminated.

Im not sure how to get around this....

maybe someone with more experience in the EPICS build system can help me out.

thanks,

William

--

William Kirstaedter (PP&B)	Fritz-Haber-Institut der MPG
Faradayweg 4-6	14195 Berlin
Tel: 030 8413 5405	Mail: kirstaedter at fhi-berlin.mpg.de