Process image

KL3404 and KL3464 as well as KL3444 and KL3454

KL3404 and KL3464 as well as KL3444 and KL3454 represent themselves in the process image with up to 12 bytes of input data and 12 bytes of output data.

Format

Input data

Output data

Byte

SB1

CB1

Word

DataIN1

DataOUT1

Byte

SB2

CB2

Word

DataIN2

DataOUT2

Byte

SB3

CB3

Word

DataIN3

DataOUT3

Byte

SB4

CB4

Word

DataIN4

DataOUT4

Key

SB n: Status byte for channel n
CB n: Control byte for channel n

DataIN n: Input data word channel n
DataOUT n: Output data word channel n

  • Please refer to the Mapping page for the assignment of the bytes and words to the addresses of the controller.
  • The meaning of the control and status bytes is explained in Control and status bytes.
  • In process data mode the analog values are transferred in input data words DataIN1 to DataIN4. Output data words DataOUT1 to DataOUT4 are not used.

KL3408 and KL3468 as well as KL3448 and KL3458

KL3408 and KL3468 as well as KL3448 and KL3458 represent a special case with regard to the process image:
Essentially, two four-channel terminals are accommodated in one terminal housing, which behave like two terminals for the K-bus.

Each of these eight channel analog terminals has the same process image like two four channel terminals of same signal type, plugged next to each other. The KS2000 configuration software and the TwinCAT System Manager display them like two separate four channel analog terminals.

Special treatment for 8-channel analog terminals

Regarding K-bus diagnosis for your Bus Coupler (e.g. for flashing codes, error code and error argument), note that these eight channel analog terminals are represented as two four channel terminals from a Bus Coupler perspective. If the Bus Coupler is the fault location in the event of an error, you must count each eight channel analog terminal as two terminals!