9
Operation
Intelligent Power Supply KNX PS640-IP 2U
• Version: 21.09.2021 • Technical changes and errors excepted.
The total number KNX Bus Resets, Device Startups and Short Circuits of can be read
out by CO no.36. The counters for KNX Bus Resets and Device Startups can be read out
by COs no.17 and no.20. For example: When there was no reset or startup and CO
no.36 sends an info telegram on the bus to report an event, this event was a short cir-
cuit.
Table 3: Event Counter Readout by Communication Objects
CO Counter Read-
out
KNX Bus Resets
Device Startups
Short Circuits
CO no.36 "Power
supply on"
X
X
X
CO no.17 "Number
of restarts"
X
CO no.20 "Number
of startups"
X
Reset by button press
Reset by object
Mains power outage
ETS programming
Short circuits
