BECKHOFF KL5121 - Manual (Page 8)

Register description
8 KL5121
Interbus Coupler BK4000
The BK4000 Interbus coupler normally maps the KL5121 with 6 bytes of
input data and 6 bytes of output data.
Offset Terminal1 Channel1 = 0
Offset Terminal1 Channel2 = 3
Offset Terminal2 Channel1 = 6
KL 5121 Channel1
KL 5121 Channel 2
The control-/status byte
must be inserted for
parameterization.
K-Bus
Interbus bus coupler
BK4000
To the bus terminal
Data H
Data L
D1 - 0
D0 - 0
D0 - 1
D1 - 1
C/S - 0
C/S
C/S - 1
0
The terminal is
mapped in the
bus coupler.
Other bus couplers and
further information You will find further information on the mapping configuration of bus
couplers in the annex of the respective bus coupler manual under the
heading of "Configuration of masters".
i
Note
The annex contains an overview of the possible mapping configurations
depending on the adjustable parameters.
Parametrization with the
KS2000 software Parametrization operations can be carried out independantly of the field
bus system using the Beckhoff KS2000 configuration software via the
serial configuration interface in the bus coupler.
Register description
The complex terminals can be adjusted to different operating modes or
functionalities. The " general description of register " describes the
contents of the registers, which are identical for all complex terminals.
The terminal-specific registers are explained in the section following to it.
The access to the internal registers of the terminal is described in the
section " register communication ".
General register description
Complex terminals that possess a processor are capable of bidirectionally
ex-changing data with the higher-level control system. Below, these
terminals are referred to as intelligent bus terminals. They include the
analog inputs (0-10V, -10-10V, 0-20mA, 4-20mA), the analog outputs (0-
10V, -10-10V, 0-20mA, 4-20mA), serial interface terminals (RS485, RS232,
TTY, data transfer terminals), counter terminals, encoder interfaces, SSI
interfaces, PWM terminals and all other parametrizable terminals.
Internally, all intelligent terminals possess a data structure that is identical
in terms of it's essential characteristics. This data area is organized in