Siemens LOGO! - CM as Interface, Behaviour on Communication Failure; CM as Interface, Communication States; LED (RUN;STOP) Is Lit; LED AS-I Is Lit

51
LOGO! Manual
A5E00380835-01
LED (RUN/STOP) is lit
Green (RUN) Red (STOP) Orange/Yellow
The expansion
module
communicates with
the device to its left
The expansion
module does not
communicate with
the device to its left
Initialization phase
of the expansion
module
CM AS Interface, communication states
The CM AS Interface knows three communication states:
The LED is lit green, red or flashes red/yellow.
LED AS-I is lit
Green Red Red/Yellow
AS Interface
communication OK
AS Interface
communication
failed
Slave has address
”0”
CM AS Interface, behaviour on communication failure
 If the AS-Interface voltage fails, communication between
the LOGO! system and the expansion modules, which
are arranged to the right of the LOGO! CM AS-Interface
expansion module, is interrupted.
Recommendation: Position LOGO! CM AS-Interface on
the far right-hand side!
 If communication is interrupted, the switching outputs
are reset after about 40 to 100 ms.
CM EIB/KNX, communication states
The CM EIB/KNX knows three communication states: The
LED is lit green, red or orange.
LED BUS is lit
Green Red Orange
Bus connection OK,
communication OK,
no programming
mode
Bus connection
interrupted
Programming mode
active and bus
connection OK
LOGO! installation and wirin
g