Viessmann Vitocal 350-A Installation And Service Instructions Manual page 162

Troubleshooting
Control unit diagnostics
Page 2: Network variables and status
LON diagnosis
LON1 :
05310002
LON1 :
00001001
Foreign :
05130002
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
RTO:
_ _ _ _ _ _ _ _ _ _ _
Rel : : A040
?AT : 8.0 [ 0 ]
?Z : 18.11.2008 15:30:22
>>
Display
LON1 / LON2 / foreign
RTO
162
(cont.)
BACK
Explanation
LON module identification
"Receive timeout": If the data of one of the 31 network var-
iables (max.) was not received in the receive interval
(receive heartbeat), the symbol "X" appears at the corre-
sponding point of the sequence.
1 nviNodeAlarm
2 nviNodeOATemp
3 nviBocBoilerCmd
4 nviBocApplicMd
5 nviBocSetpoint
6 nviCfdmProdCmd
7 nviCfdmApplicMd
8 nviCfdmSetpoint
9 nviCfdmConsDmd
10 nviDhwcApplicMd
11 nviHcc1ApplicMd
12 nviHcc1SpaceSet
13 nviHcc1FlowTemp
14 nviHcc2ApplicMd
15 nviHcc2SpaceSet
16 nviHcc2FlowTemp
17 nviHcc3ApplicMd
18 nviHcc3SpaceSet
19 nviHcc3FlowTemp