LON Bus Terminal KL6401
Error 2
LON service/status
Error 1 
Power contact
+24 V
Power contact 0 V
+24 V
0 V
+24 V
0 V
Top view 
Contact assembly 
extended shock and vibration range

KL6401 | LON Bus Terminal

The KL6401 LON Bus Terminal enables direct connection of LON devices. The network variables of the connected devices are available for the Bus Coupler or the higher-level bus system. This simplifies the data exchange between a variety of systems and a LON network. Status LEDs directly indicate the bus status. The LON terminal operates independent of the bus system used. Several KL6401 can be used with a single Bus Coupler or a Bus Terminal Controller. The KL6401 supports 62 SNVTs. All SNVT types can be configured as input or output variable via the KS2000 software. The KS2000 software generates an XIF file that is integrated in an LON tool.

Technical data KL6401
Technology LON
Number of channels 1
Data transfer standard FTT-10, LPT
Data transfer channels 1
Network variables 62 (standard network variables SNVTs), max. 15 LON devices
Data transfer rates 78 kbit/s
Bus segment length 500 m
Bus access CSMA
Current consumpt. K-bus typ. 55 mA
Current consumption power contacts only load
Electrical isolation 500 V (K-bus/LON-bus)
Bit width in the process image input/output: 36 bytes
Configuration KS2000, LonMaker or another LON Tool, TwinCAT (function blocks)
Nominal voltage 24 V DC (-15 %/+20 %)
Special features 15 devices; TwinCAT library: TwinCAT PLC LON
Weight approx. 85 g
Operating/storage temperature 0…+55 °C/-25…+85 °C
Relative humidity 95 %, no condensation
Vibration/shock resistance conforms to EN 60068-2-6/EN 60068-2-27
EMC immunity/emission conforms to EN 61000-6-2/EN 61000-6-4
Protect. class/installation pos. IP 20/variable
Approvals CE, UL, Ex
TwinCAT PLC LON The library is installed free of charge together with TwinCAT from V2.11 Build 2229 (R3 and x64 engineering).
subsystem For further subsystem products please see the system overview.