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16 word input/output message, Network communications 3-3 – Yaskawa Profibus-DP Option Card CM061 User Manual

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Network Communications 3-3

16 Word Input/Output Message

The PROFIBUS-DP Option can be configured as one of three possible I/O messages; 16 word input/output message, 6 word input/output
message and 3 word I/Os messages. The 16 word input/output message structure is described in this section.

The 16 word input and output messages are divided into two areas. The first 16 bytes of each message is fixed. This is the most frequently
used data and is referred to as the fast I/O data. The remaining 16 bytes of each message are used for reading from and writing to all other
drive parameters and is referred to as parameter data. All command, monitor, and parameter data in the drive is accessible via the parameter
access portion of the message.

Table 3.1 – PROFIBUS-DP 16 Word Input/Output Message Table

Output Data (PROFIBUS-DP Master-> Drive)

Input Data (Drive -> PROFIBUS-DP Master )

Byte

Function

Byte

Function

0

RUN Operation Command MSB

0

Drive Status MSB

1

RUN Operation Command LSB

1

Drive Status LSB

2

Frequency Reference MSB

2

Motor Speed MSB

3

Frequency Reference LSB

3

Motor Speed LSB

4

Torque Reference/Limit MSB (Flux Vector Mode)

4

Torque Reference/Limit MSB (Flux Vector Mode)

5

Torque Reference/Limit LSB (Flux Vector Mode)

5

Torque Reference/Limit LSB (Flux Vector Mode)

6

Torque Compensation MSB (Flux Vector Mode)

6

Speed Detection PG Count MSB (w/ PG)

7

Torque Compensation LSB (Flux Vector Mode)

7

Speed Detection PG Count LSB (w/ PG)

8

Reserved

8

Frequency Reference MSB

9

Reserved

9

Frequency Reference LSB

10

Analog Output Channel 1 MSB

10

Output Frequency MSB

11

Analog Output Channel 1 LSB

11

Output Frequency LSB

12

Analog Output Channel 2 MSB

12

Output Current MSB

13

Analog Output Channel 2 LSB

13

Output Current LSB

14

Multifunction Digital Output MSB

14

Analog Input Channel 1 MSB

Fast I/O

Area

15

Multifunction Digital Output LSB

Fast I/O

Area

15

Analog Input Channel 1 LSB

16

Function Code

16

Function Code

17

Starting Address MSB

17

Starting Address MSB

18

Starting Address LSB

18

Starting Address LSB

19

Data Length (2, 4, 6 or 8bytes of data)

19

Data Length (2, 4, 6 or 8bytes of data)

20

Data 1 MSB

20

Data 1 MSB

21

Data 1 LSB

21

Data 1 LSB

22

Data 2 MSB

22

Data 2 MSB

23

Data 2 LSB

23

Data 2 LSB

24

Data 3 MSB

24

Data 3 MSB

25

Data 3 LSB

25

Data 3 LSB

26

Data 4 MSB

26

Data 4 MSB

27

Data 4 LSB

27

Data 4 LSB

28 Reserved

28 Reserved

29 Reserved

29 Reserved

30 Reserved

30 Reserved

Parameter Access Area

31 Handshake

Register

Parameter Access Area

31 Handshake

Register