BECKHOFF KL5101-0000 - Manual (Page 17)

Terminal configuration
KL5101 15
3.5 Mapping in the bus coupler
Each terminal channel is mapped in the bus coupler. In the standard case,
this mapping is done with the default setting in the bus coupler / bus
terminal. This default setting can be modified with the Beckhoff KS2000
configuration software or using master configuration software (e.g.
ComProfibus or TwinCAT System Manager). The following tables provide
information on how the KL5101 maps itself in the bus coupler depending
on the set parameters.
Mapping in the bus coupler The KL5101 is mapped in the bus coupler depending on the set
parameters. The terminal is always evaluated completely, the terminal
occupies memory space in the process image of the input and outputs.
Default mapping for
CANopen, CANCAL,
DeviceNet, ControlNet,
Modbus, RS232 und
RS485 Couplers
Conditions word offset high byte low byte
Complete evaluation: any 0 D0 CB/SB
Motorola format: no 1 D2 D1
Word alignment: no 2 D4 D3
Default mapping for
Profibus and Interbus
Couplers Conditions word offset high byte low byte
Complete evaluation: any 0 D1 CB/SB
Motorola format: yes 1 D2 D0
Word alignment: no 2 D3 D4
Default mapping for
Lightbus, EtherCAT and
Ethernet Couplers and Bus
Terminal Controllers
(BCxxxx, BXxxxx) Conditions word offset high byte low byte
Complete evaluation: any 0 - CB/SB
Motorola format: no 1 D1 D0
Word alignment: yes 2 - D2
3 D4 D3
Conditions word offset high byte low byte
Complete evaluation: any 0 - CB/SB
Motorola format: yes
1 D0 D1
Word alignment: yes
2 - D2
3 D3 D4
Key Complete evaluation: The terminal is mapped with control / status byte.
Motorola format: The Motorola or Intel formal can be set.
Word alignment: The terminal is at a word limit in the bus coupler.
CB: Control- Byte (appears in the process image of the outputs).
SB: Status- Byte (appears in the process image of the inputs).
D0/D1: Counter word (read/set)
(D2): contains the period, together with 3/D4
D3/D4: Latch word (read)