Yaskawa Profibus-DP Option Card CM061 Manuel d'utilisateur Page 30
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Network Communications 3-6
# Parameter Access Command Message Structure
Two command, output, functions are available, read parameter data, 03h, and write parameter data, 10h. If no parameter access
communications is desired, use 00h as the function code. These function codes are programmed in byte 16 of the 16 word input/output
message. Bytes 17 and 18 contain the parameter access address of the parameter to be accessed. Byte 19 contains the number of data bytes
to be read from or written to the drive. Since each parameter consists of two bytes, this value is incremented by two for each parameter
accessed. Bytes 19 through 27 contain the data to be written to the selected parameter. If the command is to read parameter data, bytes 19
through 27 must be set to 0.
Table 3.4 – 16 Word Input/Output Message Parameter Access Command Structure
Output Data – Parameter Access Command Message (PROFIBUS-DP Master -> Drive)
Byte Name Function
16 Function Code
Parameter Access Command Code (Read data = 03h, Write data = 10h)
17 Starting Address MSB
18 Starting Address LSB
The first register to be read or written
19 Data Quantity Bytes of data (2 x Number of parameters to be read or written)
20 Data 1 MSB
21 Data 1 LSB
Value of data to write to the drive parameter Starting Address
22 Data 2 MSB
23 Data 2 LSB
Value of data to write to the drive parameter Starting Address + 1
24 Data 3 MSB
25 Data 3 LSB
Value of data to write to the drive parameter Starting Address + 2
26 Data 4 MSB
27 Data 4 LSB
Value of data to write to the drive parameter Starting Address + 3
28 Reserved
29 Reserved
30 Reserved
31 Handshaking Register Synchronizes drive communication with PROFIBUS-DP Master
# Parameter Access Response Message Structure
The standard Parameter Access response structure is described below. In a non-erroneous response, the Function Code, Starting Register
and Data Quantity are identical to the command message. If the command function code is 03h, read data, the data bytes will contain the
values of the requested parameters. If the command function code is 10h, write data, the data bytes will contain 0 and should be ignored.
Table 3.5 – 16 Word Input/Output Message Parameter Access Response Structure
Input Data – Parameter Access Response Message (Drive -> PROFIBUS-DP Master )
Byte Name Function
16 Function Code
Parameter Access Response Code (Command code or command code & 80h for error)
17 Starting Address MSB
18 Starting Address LSB
The first register to be read or written
19 Data Quantity Bytes of data (2 x Number of parameters to be read or written)
20 Data 1 MSB
21 Data 1 LSB
Value of data read from the drive parameter Starting Address
22 Data 2 MSB
23 Data 2 LSB
Value of data read from the drive parameter Starting Address + 1
24 Data 3 MSB
25 Data 3 LSB
Value of data read from the drive parameter Starting Address + 2
26 Data 4 MSB
27 Data 4 LSB
Value of data read from the drive parameter Starting Address + 3
28 Reserved
29 Reserved
30 Reserved
31 Handshaking Register Synchronizes drive communication with PROFIBUS-DP Master
- Option 1
- Warnings and Cautions 3
- Introduction 4
- Table of Contents 5
- Chapter 1 Installation 7
- Installation 1-2 8
- Installation Check Sheet 9
- Installation 1-4 10
- Unpack and Inspect 11
- Installation and Wiring 12
- Installation 1-7 13
- # Set Node Address 14
- # Set Network Termination 14
- Installation 1-9 15
- Option LEDs 16
- # LED Diagnostics 17
- Drive Faults 18
- Network Configuration 2-1 19
- Network Configuration 2-2 20
- Configuration 21
- # Select Station Type 22
- # Station Configuration 22
- Network Configuration 2-5 23
- GSD File 24
- Network Communications 3-2 26
- 16 Word Input/Output Message 27
- # Fast I/O Output Data 28
- # Fast I/O Input Data 29
- # Parameter Access Area 29
- Network Communications 3-6 30
- 6 Word Input/Output Message 31
- Network Communications 3-9 33
- 3 Word I/Os Message 34
- Network Communications 3-12 36
- Handshaking 37
- Network Communications 3-14 38
- Product Specification A-1 39
- Product Specification A-2 40
- Product Specification B-1 41
- Product Specification B-2 42
- Product Specification B-3 43
- Product Specification B-4 44
- Appendix C Parameter Access 45
- Parameter Access C-2 46
- Parameter Access Overview 47
- Parameter Access C-4 48
- Read Drive Data Example 49
- Parameter Access C-6 50
- Write Drive Data Example 51
- Parameter Access C-8 52
- Appendix D Troubleshooting 53
- Troubleshooting D-2 54
- Troubleshooting Check List 55
- Troubleshooting D-4 56
- Troubleshooting D-5 57
- Troubleshooting D-6 58
- Troubleshooting D-7 59
- Wiring And Cabling 60
- Troubleshooting D-9 61
- # Cable Is Routed Correctly 62
- PROFIBUS-DP Configuration 63
- # LED Indicators 64
- # Module Status Indicators 65
- # Drive Faults 66
- PROFIBUS-DP 68
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