1. KL3208, KL3228 - Eight channel input terminals for PT1000, NI1000, NTC
  2. Access from the user program
  3. Control and status bytes
  4. Register communication

Register communication

Control byte 1 (in register communication)

Control byte 1 (CB1) is located in the output image, and is transmitted from the controller to the terminal.

Bit

CB1.7

CB1.6

CB1.5

CB1.4

CB1.3

CB1.2

CB1.1

CB1.0

Name

RegAccess

R/W

Reg. no.

Key

Bit

Name

Description

CB1.7

RegAccess

1bin

Register communication switched on

CB1.6

R/W

0bin

Read access

1bin

Write access

CB1.5 to CB1.0

Reg. no.

Register number:
Enter the number of the register that you

  • want to read with input data word DataIn or
  • want to write with output data word DataOut.

Status byte 1 (in register communication)

The status byte 1 (SB1) is located in the input image and is transmitted from terminal to the controller.

Bit

SB1.7

SB1.6

SB1.5

SB1.4

SB1.3

SB1.2

SB1.1

SB1.0

Name

RegAccess

R/W

Reg. no.

Key

Bit

Name

Description

SB1.7

RegAccess

1bin

Acknowledgement for register access

SB1.6

R

0bin

Read access

SB1.5 to SB1.0

Reg. no.

Number of the register that was read or written.