Serial interface TTY, 20 mA current loop KL6011
Top view 
Contact assembly 
extended shock and vibration range

KL6011 | Serial interface TTY, 20 mA current loop

The KL6011 serial interface allows devices with a 20 mA current interface to be connected. The interface operates passively. The device connected to the KL6011 terminal communicates with the automation device via the Bus Coupler. The active communication channel operates independently of the higher-level bus system in full duplex mode at up to 19,200 baud. The current interface (TTY) guarantees high immunity to interference through electrically isolated signals with injected current.

Technical data KL6011 | KS6011
Technology TTY
Data transfer channels 2 (1/1), TxD and RxD, full duplex
Data transfer rates 1,200…19,200 baud; default: 9,600 baud, 8 data bits, no parity and one stop bit
Bit transfer 2 x 20 mA
Load < 500 Ω
Line impedance
Cable length max. 1,000 m twisted pair
Power supply via the K-bus
Current consumpt. K-bus typ. 55 mA
Current consumption power contacts – (no power contacts)
Electrical isolation 500 V (K-bus/signal voltage)
Data buffer 128 bytes receive buffer, 16 bytes transmit buffer
Bit width in the process image input/output: 3 x 8 bit user data, 1 x 8 bit control/status (up to 5 x 8 bit user data are possible)
Configuration no address setting, configuration via Bus Coupler or controller
Special features 2 x 20 mA bit transfer
Weight approx. 60 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
Pluggable wiring for all KSxxxx Bus Terminals
Approvals CE, UL, Ex
Special terminals
KL6011-0020 standard format 5 bytes of user data