[Nut-upsdev] New APC "SMT" UPSes support MODBUS, will there be support in NUT?

[Ted Mittelstaedt]

Interesting,

The work that was done with apcupsd is available.  I don't know if it 
uses libmodbus.

APC gave a UPS with modbus support in it to the apcupsd developer who 
wrote the support.  My guess is that they would do the same for a 
developer who added the support into NUT

Ted


On 9/13/2013 2:46 PM, Arnaud Quette wrote:
> Hello Ted,
>
>
> 2013/9/11 Ted Mittelstaedt <tedm at mittelstaedt.us
> <mailto:tedm at mittelstaedt.us>>
>
>     Hi All,
>
>        About a month ago APC announced they were including MODBUS
>     protocol support in their new APC UPSes.  The technical note on this
>     is here:
>
>     http://www.apcmedia.com/__salestools/MPAO-98KJ7F/MPAO-__98KJ7F_R0_EN.pdf
>     <http://www.apcmedia.com/salestools/MPAO-98KJ7F/MPAO-98KJ7F_R0_EN.pdf>
>
>     "Application Note #176  Modbus Implementation in APC Smart-UPS"
>
>     The APC "announcement" appeared on their site in their user blogs by
>     an APC employee, here:
>
>     http://forums.apc.com/thread/__5374?start=30&tstart=0
>     <http://forums.apc.com/thread/5374?start=30&tstart=0>
>
>     It states: "we have recently released a firmware update for certain
>     Smart-UPS SMT models (UPS 09.1)"
>
>     APC made firmware updates to their SMT UPSes for this new protocol,
>     which are referred to here:
>
>     http://www.schneider-electric.__us/sites/us/en/support/faq/__faq_main.page?page=content&__country=US&lang=en&id=__FA164737&redirect=true
>     <http://www.schneider-electric.us/sites/us/en/support/faq/faq_main.page?page=content&country=US&lang=en&id=FA164737&redirect=true>
>
>     It appears from this the affected models are:
>
>     SMT Towers with firmware >= UPS 08.0
>     SMT 2U Rackmount
>     SMT 1U Rackmount (Follow SMX <=1500VA firmware)
>
>     The announcement also appeared on the apcupsd mailing list here:
>
>     http://blog.gmane.org/gmane.__comp.sysutils.apcupsd.user/__month=20130801
>     <http://blog.gmane.org/gmane.comp.sysutils.apcupsd.user/month=20130801>
>
>     where it was stated that code was available.
>
>     I understand that the Socomec ITyS UPS (2000VA) UPS also uses this same
>     Modbus protocol.
>
>     Anyway, with all of that said, will the NUT developers be looking
>     into implementing this support into NUT in the future?
>
>
> I'd like to say yes, since modbus support in NUT is something planned
> for years.
> but sadly, no.
>
> for now, I've dumped my preliminary work and a ticket:
> https://github.com/networkupstools/nut/issues/50
>
> If someone has time + motivation + a modbus dev. (I've currently none of
> these 3), I can drive him on completing this.
>
>     Ted
>
>     PS  by the way - NUT allowed me to get data out of my 15 year old
>     Compaq R3000 UPS - I haven't got reporting data from it since NT 4
>     Server became obsolete.  Many many thanks!
>
>
>   cool, I always love to hear that.
>
> cheers,
> Arnaud