Process image

The terminal is represented in the complex process image with 24 bytes of input data and 24 bytes of output data. These are organized as follows:

byte offset
(without word alignment)

byte offset
(with word alignment*)

format

input data

output data

0

0

Byte

SB1

CB1

1

2

Word

DataIN1

DataOUT1

3

4

Byte

SB2

CB2

4

6

Word

DataIN2

DataOUT2

6

8

Byte

SB3

CB3

7

10

Word

DataIN3

DataOUT3

9

12

Byte

SB4

CB4

10

14

Word

DataIN4

DataOUT4

12

16

Byte

SB5

CB5

13

18

Word

DataIN5

DataOUT5

15

20

Byte

SB6

CB6

16

22

Word

DataIN6

DataOUT6

18

24

Byte

SB7

CB7

19

26

Word

DataIN7

DataOUT7

21

28

Byte

SB8

CB8

22

30

Word

DataIN8

DataOUT8

The terminal is represented in the compact process image with 16 bytes of input data and no output data. These are organized as follows:

byte offset
(without word alignment)

byte offset
(with word alignment*)

format

input data

output data

0

0

Word

DataIN1

-

1

1

Word

DataIN2

-

2

2

Word

DataIN3

-

3

3

Word

DataIN4

-

4

4

Word

DataIN5

-

5

5

Word

DataIN6

-

6

6

Word

DataIN7

-

6

6

Word

DataIN8

-

*) Word alignment: The Bus Coupler places values on even byte addresses

Key

SB1 ... SB8:

status bytes of channels 1 to 8

CB1 ... CB8:

control bytes of channels 1 to 8

DataIN1 ... DataIN8:

input words of channels 1 to 8

DataOUT1 ... DataOUT8:

output data words of channels 1 to 8 (are used for register communication)