On Jan 7, 2018, at 1:37 PM, Vitālijs Hodiko <hodik...@inbox.lv> wrote:
> 
> Hello,
> I want to create custom UPS monitoring client using js. I connected directly 
> to driver socket and can successfully receive data and instantiate commands. 
> Now i try to SET variables, but i receive some errors. So I found that 
> running "upsrw <ups name>" will give me a list of supported variables that i 
> can set. I started UPS driver with debug flags:
> > ./blazer_usb -DDDD -a ups
>  and have run 'upsrw ups' with and without admin credentials and driver 
> debugged nothing, no data in response either.
> I sent directly SET command like this ""SET var 'value'\n""  to socket and 
> driver debugged:
>  > new connection on fd 6
> > 1195.606235    Got SET, but driver lacks a handler
> From this o\p i can assume that blazer_usb doesnt support SET command, is it 
> true?

Apparently, yes. It seems to only register an instant command handler here:

https://github.com/networkupstools/nut/blob/v2.7.2/drivers/blazer.c#L756

Note that blazer_usb (and blazer_ser) have not been maintained for a while. 
Please try nutdrv_qx, and let us know if it is not backwards-compatible (it 
should be a superset of the blazer driver).

Also, while this still might not do anything for your UPS, nutdrv_qx does have 
a setvar handler:

https://github.com/networkupstools/nut/blob/v2.7.2/drivers/nutdrv_qx.c#L1423-L1424

> 
> My UPS supports multiple test commands, but i can run only one of them.
> Failed test 1:
> > 1758.386031    instcmd(test.battery.start.deep, 3)
> > 1758.388547    send: TL
> > 1758.785995    read: TL
> > 1758.786044    instcmd: command [test.battery.start.deep] failed
> 
> Failed test 2:
> > 2150.275428    instcmd(test.battery.start, [NULL])
> > 2150.277636    send: T10
> > 2150.688833    read: T10
> > 2150.688880    instcmd: command [test.battery.start] failed
> 
> Only quick test is working:
> > 2232.746956    instcmd(test.battery.start.quick, [NULL])
> > 2232.749549    send: T
> > 2233.136727    read: 
> > 2233.136780    instcmd: command [test.battery.start.quick] handled

Not all UPSes support the standard commands, especially with a de facto 
standard like the Qx protocol.

For testing the read/write variable support, you can also use the dummy-ups 
driver in dummy (simulation) mode:

http://networkupstools.org/docs/man/dummy-ups.html

-- 
Charles Lepple
clepple@gmail




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