38-byte process image
For AS-i networks, in which slave addresses greater than 32 are used, the 38-byte process image is required for direct access to the process data of these AS-i slaves.
Input data (KL6201/KL6211 -> PLC)
Parameter data block (6 bytes) | Process data block (32 bytes) | |||||||||
---|---|---|---|---|---|---|---|---|---|---|
Byte 0 | Byte 1 | Byte 2 | Byte 3 | Byte 4 | Byte 5 | Byte 6 | Byte 7 | Byte 8 | ... | Byte 37 |
SB0 | SB1 | ParaIn0 | ParaIn1 | ParaIn2 | ParaIn3 | ASiSN | ASiIn | ASiIn | ... | ASiIn |
Output data (PLC -> KL6201/KL6211)
Parameter data block (6 bytes) | Process data block (32 bytes) | |||||||||
---|---|---|---|---|---|---|---|---|---|---|
Byte 0 | Byte 1 | Byte 2 | Byte 3 | Byte 4 | Byte 5 | Byte 6 | Byte 7 | Byte 8 | ... | Byte 37 |
CB0 | CB1 | ParaOut0 | ParaOut1 | ParaOut2 | ParaOut3 | ASiCN | ASiOut | ASiOut | ... | ASiOut |
Key
CB n: control byte n
SB n: status byte n
Para In n: Input parameter, byte n
Para Out n: Output parameter, byte n
ASiSN: AS-i status nibble
ASiCN: AS-i command nibble
ASiIn slave x+y: Input data of the AS-i slaves x and y (one nibble per slave)
ASiOut slave x+y: Output data of the AS-i slaves x and y (one nibble per slave)