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