Beckhoff KL301 Series, Documentation

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Access from the user program
KL301x, KL302x 34 Version: 4.1
Default mapping for: Profibus and Interbus Coupler
Conditions Word offset High byte Low byte
Complete evaluation: no
Motorola format: yes
Word alignment: any 0 Ch1 D0 Ch1 D1
1 Ch2 D0 Ch2 D1
2 - -
3 - -
Conditions Word offset High byte Low byte
Complete evaluation: yes
Motorola format: no
Word alignment: no 0 Ch1 D0 Ch1 CB/SB
1 Ch2 CB/SB Ch1 D1
2 Ch2 D1 Ch2 D0
3 - -
Conditions Word offset High byte Low byte
Complete evaluation: yes
Motorola format: yes
Word alignment: no 0 Ch1 D1 Ch1 CB/SB
1 Ch2 CB/SB Ch1 D0
2 Ch2 D0 Ch2 D1
3 - -
Default mapping 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. Ch1 CB/SB
1 Ch1 D1 Ch1 D0
2 Res. Ch2 CB/SB
3 Ch2 D1 Ch2 D0
Conditions Word offset High byte Low byte
Complete evaluation: yes
Motorola format: yes
Word alignment: yes 0 Res. Ch1 CB/SB
1 Ch1 D0 Ch1 D1
2 Res. Ch2 CB/SB
3 Ch2 D0 Ch2 D1
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.
5.3 Register overview
These registers exist once for each channel.