Experimental Physics and
Industrial Control System

Mark Rivers <[email protected]> · Wed, 20 Aug 2014 02:45:29 +0000

Folks,

Release R2-7 of the EPICS "modbus" module is now available. This is from the release notes:

- Added support for function code 23, Read/Write Multiple Registers. Because of the architecture of the EPICS Modbus support, a driver that uses function 23 is restricted to being either a read-only driver where no data is written, or a write-only driver where no data is read. It is preferable to use functions codes 3, 4, 6, or 16 if they are supported. However, some older devices only support function code 23.

The release notes are here:
http://cars.uchicago.edu/software/epics/modbusReleaseNotes.html

The documentation is here:
http://cars.uchicago.edu/software/epics/modbusDoc.html

The tar file is here:
http://cars.uchicago.edu/software/pub/modbusR2-7.tgz

Cheers,
Mark

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System