KL6831, KL6841 - Introduction
The SMI master terminals KL6831 and KL6841 enable direct connection to the SMI bus system.
The automation of roller shutters and sun blinds in building automation is simplified with the SMI-Bus system (Standard Motor Interface). With SMI drives roller shutters can drive to precise positions and blind drives can drive to angular positions with an accuracy of a degree. The SMI drives can return actual positions, error messages and service information to the SMI master terminal.
The KL6831 is designed for installations with 24 V LoVo SMI drives, the KL6841 for installations with 230 VAC SMI drives.
The KL6831 and KL6841 may only be operated at the designated SMI drives. Interchanging of 24 V LoVo SMI drives and 230 VAC SMI drives or mixed operation is not permitted, since it may lead to malfunctions and destruction of modules.
The wiring effort is reduced compared with standard drives, since each SMI master terminal can control up to 16 SMI drives.
Further information on the SMI bus and SMI drives are provided by the SMI Group under http://standard-motor-interface.com.
The KL6831 and KL6841 contain an integrated power supply unit for the electrically isolated SMI power supply. No further components are required for the operation of SMI drives. The KL6831 and KL6841 operate fieldbus-independent.
The TwinCAT PLC Lib SMI library, which is available free of charge (see TwinCAT Information System), is used to control the SMI master terminals directly from the PLC program. In addition, high-performance PLC function blocks for room automation according to VDI 3813 are available in the TwinCAT library TS8040 (TwinCAT 2) / TF8040 (TwinCAT 3).
 | Support for KL6831 and KL6841 The KL6831 and KL6841 are only supported in conjunction with the TwinCAT library for the SMI master terminal! |