Liebert Air Conditioners

drose12 · Joined: 10 Mar 2005 Posts: 31

We have a couple Liebert 10 ton AC's with the SNMP cards in them, so I thought I'd take a stab at creating a couple of graphs to monitor temperature and humidity. Hope I've exported this correctly.

csimet · Joined: 11 Mar 2005 Posts: 4 Location: Buffalo, NY, USA

Very nice drose12... I'm looking for this exact method to monitor my units.

Are there issues with downloads from this forum? Over the past few days, when I click any of the file dowloads, they fail (I only get the download.php file).

Linzer · Joined: 24 Sep 2002 Posts: 31

csimet · Joined: 11 Mar 2005 Posts: 4 Location: Buffalo, NY, USA

rony · Posted: Mon Mar 14, 2005 3:48 pm Post subject:

I was able to download and extract it just fine.

csimet · Joined: 11 Mar 2005 Posts: 4 Location: Buffalo, NY, USA

Most odd. Fired up Netscape and it worked. %#@^$% IE!

It was just funny that I could download files using IE from other topics. Oh well. Sorry and thanks for the help.

sazan1978 · Joined: 26 Aug 2005 Posts: 1

Great templates! I have made some OID modifications to display the temperatures in F instead of C.

csimet · Joined: 11 Mar 2005 Posts: 4 Location: Buffalo, NY, USA

Cool... Thanks!

jeffmeden · Joined: 10 Mar 2004 Posts: 14 Location: Columbus, OH

Nice work. It should be noted that the OIDs you have the 'thresholds' pointing to are the alarm high/low points, which can actually be nonexistent (return 0) if the alarm is disabled. If you see this behavior, that's why. I am working on a way for it to display the +/- tolerance which is the more commonly thought of 'setpoint' to make it more understandable.

edit/attach: I completed what i think is an improved template based on the work above. It includes setpoint indication, and zooms the temperature graph to exclude 0-40deg. I have some ideas to make it clearer but would appreciate feedback.

aragones · Joined: 04 Sep 2007 Posts: 13

Hey

I used the last XML for adding lieberts to my Cacti and I get this when I debug the graph since it never gets created. Any ideas?

RRDTool Says:

ERROR: invalid rpn expression in: b,h,+

streaker69 · Posted: Tue Sep 04, 2007 8:06 pm Post subject:

Check your CDEF's, I'm not familiar with this particular template, but that error is telling you there is something wrong in a CDEF.

aragones · Joined: 04 Sep 2007 Posts: 13

Im somewhat of a newbie to cacti but I checked the CDEF and found this one

cdef=CURRENT_DATA_SOURCE,h,+

and the graph info looks like this below

RRDTool Command:

/usr/bin/rrdtool graph - \
--imgformat=PNG \
--start=-86400 \
--end=-300 \
--title="Liebert AC#1 - Humidity" \
--base=1000 \
--height=120 \
--width=500 \
--upper-limit=100 \
--lower-limit=0 \
--vertical-label="Percent" \
--slope-mode \
DEF:a="/var/www/html/rra/liebert_ac1_humidity_158.rrd":humidity:AVERAGE \
DEF:b="/var/www/html/rra/liebert_ac1_humidity_tol_164.rrd":humidity_tol:AVERAGE \
DEF:c="/var/www/html/rra/liebert_ac1_humidity_high_t_160.rrd":humidity_high_t:AVERAGE \
DEF:d="/var/www/html/rra/liebert_ac1_humidity_low_t_162.rrd":humidity_low_t:AVERAGE \
DEF:e="/var/www/html/rra/liebert_ac1_liebert_humidifying_161.rrd":liebert_humidifying:AVERAGE \
DEF:f="/var/www/html/rra/liebert_ac1_liebert_dehumidify_159.rrd":liebert_dehumidify:AVERAGE \
DEF:g="/var/www/html/rra/liebert_ac1_humidity_setpt_163.rrd":humidity_setpt:AVERAGE \
CDEF:cdefe=b,h,+ \
CDEF:cdefi=h,b,- \
CDEF:cdefbc=e,2,-,-43,* \
CDEF:cdefbd=f,2,-,-43,* \
LINE3:a#157419:"Humidity" \
GPRINT:a:LAST:" Current\:%8.0lf" \
GPRINT:a:AVERAGE:"Average\:%8.0lf" \
GPRINT:a:MAX:"Maximum\:%8.0lf\n" \
LINE1:cdefe#FF0000:"High Set" \
GPRINT:cdefe:LAST:" %8.0lf" \
LINE2:c#FF0000:"High Alarm" \
GPRINT:c:LAST:" %8.0lf\n" \
LINE1:cdefi#0000FF:"Low Set" \
GPRINT:cdefi:LAST:" %8.0lf" \
LINE2:d#0000FF:"Low Alarm" \
GPRINT:d:LAST:" %8.0lf\n" \
AREA:cdefbc#0000FF:"Humidifying" \
AREA:cdefbd#55D6D3:"DeHumidifying\n":STACK \
LINE1:g:""

RRDTool Says:

ERROR: invalid rpn expression in: b,h,+

I changed quite a few things around and it still doesnt work, so im not sure what to try next, any ideas?

BSOD2600 · Posted: Wed Sep 05, 2007 10:53 am Post subject:

DEF[inition] h doesn't exist, hence the error with that CDEF. You'll get an error for h,b,- next.

aragones · Joined: 04 Sep 2007 Posts: 13

All righty, that seemed obvious

now should I be looking @ the graph template to add the new DEF? im going over the manuals and howto's so I can make myself more familiar with how Cacti works, but havent found anything related to this yet

BSOD2600 · Posted: Wed Sep 05, 2007 12:19 pm Post subject:

Check out the graph template. It's possible its using a hand-coded CDEF instead of one built in. If not, then edit the existing CDEF.

I wonder what that additional DEF h pointed to for data...