Standard format
In the standard format, the KL6021 is mapped by default with 4 bytes of input and output data (adjustable: 2 to 6 bytes via R35).
Note: In the standard format, the Control/Status byte is used for register and process data communication.
Conditions | I/O offset | High byte | Low byte |
|---|---|---|---|
Complete evaluation: any Motorola format: any Word alignment: any | 3 |
|
|
2 | D4(opt.) | D3(opt.) | |
1 | D2(opt.) | D1(opt.) | |
0 | D0 | CB/SB |
Alternative format
In the alternatives format, the KL6021 is mapped with 4/6 bytes of input data and 4/6 bytes of output data. The KL6021 is delivered in the alternative format.
Note: In the alternative format, the Control/Status byte is only used for register communication, while the Ser. Control/Status byte is only used for the data handshake.
Default for: CANopen, CANCAL, DeviceNET, ControlNet, RS232 and RS485
Conditions | I/O offset | High byte | Low byte |
|---|---|---|---|
Full evaluation: no Motorola format: no Word alignment: no | 3 |
|
|
2 |
|
| |
1 | D2 | D1 | |
0 | D0 | Ser-CB/SB |
Default for: PROFIBUS and Interbus
Conditions | I/O offset | High byte | Low byte |
|---|---|---|---|
Full evaluation: no Motorola format: yes Word alignment: no | 3 |
|
|
2 |
|
| |
1 | D1 | D2 | |
0 | Ser-CB/SB | D0 |
Conditions | I/O offset | High byte | Low byte |
|---|---|---|---|
Full evaluation: yes Motorola format: no Word alignment: no | 3 |
|
|
2 | D2 | D1 | |
1 | - | D0 | |
0 | Ser-CB/SB | CB/SB |
Conditions | I/O offset | High byte | Low byte |
|---|---|---|---|
Full evaluation: yes Motorola format: yes Word alignment: no | 3 |
|
|
2 | D1 | D2 | |
1 | - | Ser-CB/SB | |
0 | D0 | CB/SB |
Default for: Lightbus and Bus Terminal Controller (BCxxxx)
Conditions | I/O offset | High byte | Low byte |
|---|---|---|---|
Full evaluation: yes Motorola format: no Word alignment: yes | 3 | D2 | D1 |
2 | - | - | |
1 | D0 | Ser-CB/SB | |
0 | - | CB/SB |
Conditions | I/O offset | High byte | Low byte |
|---|---|---|---|
Full evaluation: yes Motorola format: yes Word alignment: yes | 3 | D1 | D2 |
2 | - | - | |
1 | Ser-CB/SB | D0 | |
0 | - | CB/SB |
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 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). |
Ser. CB | Control byte for the handshake (appears in the process image of the outputs). |
Ser. SB | Status byte for the handshake (appears in the process image of the inputs). |
D0-D4 | Data byte 0 - 4 |
“-“ | This byte is not used or occupied by the terminal. |