BECKHOFF BC8000 - Manual (Page 19)

RS485 – Controller BC8000
BC8000 19
If the serial interface on the bus terminal controller is not used for master
mode operation, the following chapter may be skipped.
Interface Programming
As described above, the RS485 interface of the BC8000 cannot be used
simultaneously for programming and for communication with an external
device. Hence as a first step the external device will be connected to a
serial communication terminal KL6001. After programming, this terminal is
removed and a KL6001 terminal emulation can be started. This emulation is
the RS485 interface of the BC8000.
Programming Instructions In order to simplify the process of programming the interface, a flow
diagram has been prepared to make the sequence clear. To orient you, you
will find portions of this diagram repeated in the margin.
KL6001 operation For programming a KL6001 is used in order to be able to monitor the
communication with the external serial device. The terminal must be
entered in the controller as standard format and with 5 bytes of user data,
as emulation requires this format. In order to shift the terminal, one may
either use KS2000 software or order a parameterised terminal (Order
designation KL6001-0020). The terminal is situated in the process image of
the controller (e.g. at %QB0 and %IB0 if it is plugged in as the first byte-
oriented terminal – see appendix).