1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 <2012> 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 | Index | 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 <2012> 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 |
<== Date ==> | <== Thread ==> |
---|
Subject: | modbus questions |
From: | Pierrick Hanlet <[email protected]> |
To: | Tech Talk <[email protected]> |
Date: | Wed, 9 May 2012 10:33:25 -0500 |
Hi, First, let it be known that I'm new to modbus. My questions are as follows: 1) The download site has a link to V2.4, but what is there for downloading only goes to V2.3; nonetheless, there is V2.4 documentation. Where is it? 2) I have a read command that I only want to perform once, how can I do so? It wants to continue polling. 3) I can't find any sample code for writing. Specifically, I want to write (and read) from the analog output holding registers for my device (40001-4999) with function 16 (and 3 for read). Are there any examples from which I can glean? I would like to see both the database entries as well as the drvModbusAsynConfigure commands. Thank you, Pierrick "Whether you think you can or think you can't, either way, you are correct" -- Henry Ford _______________________________________________________________ Pierrick Hanlet IIT/Fermilab +1-630-840-5555 (FNAL) +1-312-567-5745 (IIT) +1-630-697-8758/+44-79-48-860-1978 (US/UK mobile) |