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9–16
D485 MODBUS TO DEVICENET CONVERTER – USER GUIDE
APPLICATION EXAMPLE
This can be done by using I/O data input area mapping mailbox command (06h)
1.
Right click on
EndInit
item and insert a new mailbox.
2.
Set command code to 06 (row 3).
3.
The offset and length of attribute for each attribute must be provided. Each attribute
requires two words (four bytes) in message data; therefore, 5 attributes require 20
bytes. Enter 20 in the
Data size
field - it will automatically convert and display as
0x0014 (hex).
Figure 9-27: Setting offset and data length for IO data input attributes
4.
The offset and data length for each attribute in bytes in given below.
5.
Enter the offset and data length values from the table above, then select the
File >
Apply Changes
menu item to save the changes.
6.
The above I/O data input mapping object class A0h attributes are mapped to
assembly object class 04h instances with fixed attribute number 03h. The mapping is
given below.
Attribute
Offset
Data length
1
0x0000
0x0006
2
0x0006
0x0002
3
0x0008
0x0002
4
0x000A
0x0004
5
0x000E
0x0002
Class A1h,
instance 01h,
attribute
Corresponding instance in
assembly object class 04h
(Attribute 03h)
Description
1
96h
Input 1
2
97h
Input 2
3
98h
Input 3
4
99h
Input 4
5
9Ah
Input 5
Содержание D485
Страница 32: ...3 14 D485 MODBUS TO DEVICENET CONVERTER USER GUIDE DATA EXCHANGE ...
Страница 46: ...4 14 D485 MODBUS TO DEVICENET CONVERTER USER GUIDE SOFTWARE OVERVIEW ...
Страница 52: ...5 6 D485 MODBUS TO DEVICENET CONVERTER USER GUIDE COMMUNICATION MODEL ...
Страница 92: ...9 20 D485 MODBUS TO DEVICENET CONVERTER USER GUIDE APPLICATION EXAMPLE ...
Страница 94: ...10 2 D485 MODBUS TO DEVICENET CONVERTER USER GUIDE MISCELLANEOUS ...