15
Transmission protocol
Power Supply Systems KNX PS640+ and KNX PS640+USB
Version: 19.08.2020 • Technical changes and errors excepted.
1 bit malfunction collection:
8 bit status collection:
A combination of error messages is possible. If e.g. value 34 is transferred, then Bit 1
= Overload and Bit 5 = Overtemperature are set.
The value set in the menu „current threshold value“ (see next chapter) is used as
cur
-
rent threshold value
. The additional settings for hysteresis etc. are
not
taken into ac
-
count for the status collection. Bit 6 „current threshold status exceeded“ is set, if the
threshold value has been exceeded for 1 minute. The bit is immediately deleted again,
if the threshold value is underrun.
Error log:
Object „1 bit malfunction collection“
This object results in a
disjunction of the 1 bit malfunction objects
• do not send
• send in case of change
• send in case of change to 1
• send in case of change to 0
• send in case of change and cyclically
• send in case of change to 1 and
cyclically
• send in case of change to 0 and
cyclically
Sending cycle
(only if sending „cyclically“)
5 sec • 10 sec • 30 sec • 1 min • … • 2 h
Object „8 bit status collection“
• do not send
• send in case of change
• send in case of change and cyclically
Sending cycle
(only if sending „cyclically“)
5 sec • 10 sec • 30 sec • 1 min • … • 2 h
Bit 0 = reset status of the linie
Bit 1 = overload
= value 1
= value 2
Bit 2 = external overvoltage
Bit 3 = internal overvoltage
= value 4
= value 8
Bit 4 = short circuit
Bit 5 = overtemperature
= value 16
= value 32
Bit 6 = current threshold value exceeded
Bit 7 = system defect
= value 64
= value 128
Use error log
No • Yes
