Siemens DESIGO PX Series - Terminal Blocks; LED Indicators; Engineering; Service Pin

The terminal blocks are removable for easy wiring.
Communication
RS232/RS485: RX (Green) : TX (Yellow)
KNX: RX (Green) TX (Yellow) Service (Red)
The other LEDs have the following meaning:
Service pin
LED
Color
Activity
Function
RUN
Green Continuously ON
Continuously OFF
Power OK
No power
FAULT
Red Continuously OFF
Continuously ON
Rapid flashing
OK
Fault
Firmware missing / corrupt
LOW
BATT
Red Continuously OFF
Continuously ON
Battery OK
Battery empty– replace!
COMM
Red Continuously ON
Continuously OFF
Flashing
Connection to switch OK
No connection to switch
Communication
INFO
Red
Freely programmable
SERVICE
(Ethernet,
PXC001-
E.D)
Red Continuously OFF
Continuously ON
Flashing
Flashing per wink
command *)
OK
No connection to switch
No IP address configured
Physical identification of system
controller after receipt of wink
command
SERVICE
(LonTalk,
PXC001.D)
Red Continuously OFF
Continuously ON
Flashing
Flashing per wink
command *)
L
ONWORKS node is configured
Faulty L
ONWORKS chip, or service pin
currently depressed
L
ONWORKS node is not configured
Physical identification of system
controller after receipt of wink
command
*)
Wink command pattern:
2s
1s
21s
5 Hz 5 Hz
9222z02
2s
1s
Identification of the system controller in the IP network or L
ONWORKS network
See "Commissioning".
Engineering
See the PX open documents in folder CM110761.
Terminal blocks
LED indicators
Service pin
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Siemens PXC001 System controllers CM1N9223en_01
Building Technologies 2014-04-04