Register overview

All registers can be read or written via register communication.

Registers R0 to R31 (direct access)

These registers are used to parameterize the terminal KL3681.

Register no.

Comment

Default value

R/W

Memory

R0

Raw value of the A/D converter

0x0000

0dec

R

RAM

R1

Current measuring range / mode

0x0000

0dec

R

RAM

R2

Internal calibration value

0x0000

0dec

R

RAM

R3

Sampling duration in milliseconds

0x0000

0dec

R

RAM

R4

Register page selection register

0x0000

0dec

R/W

RAM

R5

reserved

-

-

-

-

R6

Diagnostic register

0x0000

0dec

R

RAM

R7

Command register

0x0000

0dec

R/W

RAM

R8

Terminal type

0x0E61

3681dec

R

ROM

R9

Firmware version

e.g.

e.g. 1AASCI

R

ROM

R10

Multiplex shift register, data length

0x0130

304dec

R

ROM

R11

Signal channels

 

 

R

ROM

R12

Minimum data length

 

 

R

ROM

R13

Data structure

 

 

R

ROM

R14

reserved

-

-

-

-

R15

Alignment register

typically

typically

R/W

RAM

R16

Hardware version number

 

 

R/W

SEEPROM

R17

reserved

-

-

-

-

...

reserved

-

-

-

-

R28

reserved

-

-

-

-

R29

Terminal type, version

0x0000

0dec

R

ROM

R30

reserved

-

-

-

-

R31

Code word register

0x0000

0dec

R/W

RAM

Register page 0

These registers are also used for parameterization of the KL3681 (access selectable via register R4).

Register no.

Comment

Default value

R/W

Memory

R32

Feature register

0x2804

10244dec

R/W

SEEPROM

R33

Zero Comp Interval

0x0000

0dec

R/W

SEEPROM

R34

reserved

-

-

-

-

R35

reserved

-

-

-

-

R36

User scaling, measuring range 300 mVDC, offset

0x0000

0dec

R/W

SEEPROM

R37

User scaling, measuring range 300 mVDC, gain

0x2000

8192dec

R/W

SEEPROM

R38

User scaling, measuring range 3 VDC, offset

0x0000

0dec

R/W

SEEPROM

R39

User scaling, measuring range 3 VDC, gain

0x2000

8192dec

R/W

SEEPROM

R40

User scaling, measuring range 30 VDC, offset

0x0000

0dec

R/W

SEEPROM

R41

User scaling, measuring range 30 VDC, gain

0x2000

8192dec

R/W

SEEPROM

R42

User scaling, measuring range 300 VDC, offset

0x0000

0dec

R/W

SEEPROM

R43

User scaling, measuring range 300 VDC, gain

0x2000

8192dec

R/W

SEEPROM

R44

User scaling, measuring range 300 mVAC, offset

0x0000

0dec

R/W

SEEPROM

R45

User scaling, measuring range 300 mVAC, gain

0x2000

8192dec

R/W

SEEPROM

R46

User scaling, measuring range 3 VAC, offset

0x0000

0dec

R/W

SEEPROM

R47

User scaling, measuring range 3 VAC, gain

0x2000

8192dec

R/W

SEEPROM

R48

User scaling, measuring range 30 VAC, offset

0x0000

0dec

R/W

SEEPROM

R49

User scaling, measuring range 30 VAC, gain

0x2000

8192dec

R/W

SEEPROM

R50

User scaling, measuring range 300 VAC, offset

0x0000

0dec

R/W

SEEPROM

R51

User scaling, measuring range 300 VAC, gain

0x2000

8192dec

R/W

SEEPROM

R52

User scaling, measuring range 100 mADC, offset

0x0000

0dec

R/W

SEEPROM

R53

User scaling, measuring range 100 mADC, gain

0x2000

8192dec

R/W

SEEPROM

R54

User scaling, measuring range 1 ADC, offset

0x0000

0dec

R/W

SEEPROM

R55

User scaling, measuring range 1 ADC, gain

0x2000

8192dec

R/W

SEEPROM

R56

User scaling, measuring range 10 ADC, offset

0x0000

0dec

R/W

SEEPROM

R57

User scaling, measuring range 10 ADC, gain

0x2000

8192dec

R/W

SEEPROM

R58

User scaling, measuring range 100 mAAC, offset

0x0000

0dec

R/W

SEEPROM

R59

User scaling, measuring range 100 mAAC, gain

0x2000

8192dec

R/W

SEEPROM

R60

User scaling, measuring range 1 AAC, offset

0x0000

0dec

R/W

SEEPROM

R61

User scaling, measuring range 1 AAC, gain

0x2000

8192dec

R/W

SEEPROM

R62

User scaling, measuring range 10 AAC, offset

0x0000

0dec

R/W

SEEPROM

R63

User scaling, measuring range 10 AAC, gain

0x2000

8192dec

R/W

SEEPROM

Register page 1

These registers are used for calibration of the KL3681 (access selectable via register R4).

Register no.

Comment

Default value

R/W

Memory

R32

Internal calibration data

 

 

R

SEEPROM

...

...

 

 

...

...

R35

Internal calibration data

 

 

R

SEEPROM

R36

Manufacturer calibration

 

 

R

SEEPROM

...

...

 

 

...

...

R63

Manufacturer calibration

 

 

R

SEEPROM