Beckhoff KL3302, Documentation, Page: 36 / 51

Access from the user program
KL3311, KL3312, KL3314 and KL3302 36 Version: 4.2
5.2.1 KL3311 - Default Mapping
For: CANopen, CANCAL, DeviceNet, ControlNet, Modbus, RS232 and RS485 Coupler
Conditions Word offset High byte Low byte
Complete evaluation: no
Motorola format: no
Word alignment: any 0 Ch0 D1 Ch0 D0
1 - -
2 - -
3 - -
For: Profibus and Interbus Coupler
Conditions Word offset High byte Low byte
Complete evaluation: no
Motorola format: yes
Word alignment: any 0 Ch0 D0 Ch0 D1
1 - -
2 - -
3 - -
Conditions Word offset High byte Low byte
Complete evaluation: yes
Motorola format: no
Word alignment: no 0 Ch0 D0 Ch0 CB/SB
1 - Ch0 D0
2 - -
3 - -
Conditions Word offset High byte Low byte
Complete evaluation: yes
Motorola format: yes
Word alignment: no 0 Ch0 D1 Ch0 CB/SB
1 - Ch0 D0
2 - -
3 - -
For: Lightbus & Ethernet Coupler and Bus Terminal Controller (BCxxxx, BXxxxx)
Conditions Word offset High byte Low byte
Complete evaluation: yes
Motorola format: no
Word alignment: yes 0 Res. Ch0 CB/SB
1 Ch0 D1 Ch0 D0
2 - -
3 - -
Conditions Word offset High byte Low byte
Complete evaluation: yes
Motorola format: yes
Word alignment: yes 0 Res. Ch0 CB/SB
1 Ch0 D0 Ch0 D1
2 - -
3 - -
Key
Complete evaluation The terminal is mapped with control and status byte.
Motorola format Motorola or Intel format can be set.
Word alignment The terminal is positioned on a word boundary in the Bus Coupler.
Ch n CB Control byte for channel n (appears in the process image of the outputs).
Ch n SB Status byte for channel n (appears in the process image of the inputs).
Ch n D0 Channel n, data byte 0 (byte with the lowest value)
Ch n D1 Channel n, data byte 1 (byte with the highest value)
"-" This byte is not used or occupied by the terminal.
Res. Reserved: this byte is assigned to the process data memory, although it has no function.