Nidec Unidrive M600 - Page 143

SI-Ethernet User Guide 143
Issue: 3
Safety
information
Introduction
Mechanical
installation
Electrical
installation
Getting started Parameters
Key features
and Protocols
PC Tools
Applications
Security Diagnostics
Glossary of
terms
Index
Example
To write the value 12345 to drive parameters 0.20.021 through 0.20.023 and read the values of
parameters 0.20.024 through 0.20.026 (Transaction ID=42) using standard addressing:
Master request data Slave response data
Byte
Hex
value
Description Byte
Hex
value
Description
0-1 00 2A
Transaction ID
(42)
0-1 00 2A
Transaction ID
(42)
2-3 00 00
Protocol ID
(0=TCP/IP)
2-3 00 00
Protocol ID
(0=TCP/IP)
4-5 00 17
Length
(Bytes=6)
4-5 00 0F
Length
(Bytes=15)
6FF
Unit identifier
(FF= Drive)
6FF
Unit identifier
(FF= Drive)
717
Function code
(23)
717
Function code
(23)
8-9 47 E7
Start read register
(20.023)
80C
Length of data
(Bytes=12)
10-11 00 06
Number of read registers
(6)
9-12
?? ??
?? ??
Register data 0
(Pr 20.024)
12-13 47 E4
Start write register
(20.020)
13-16
?? ??
?? ??
Register data 1
(Pr 20.025)
14-15 00 06
Number of write registers
(6)
17-20
?? ??
?? ??
Register data 2
(Pr 20.026)
16 0C
Length of register data to
write
(Bytes=12)
17-20
00 00
30 39
Register data 0
(12345)
21-24
00 00
30 39
Register data 1
(12345)
25-28
00 00
30 39
Register data 2
(12345)