Communic ation – IDEC High Performance Series User Manual
Page 143
WindO/I-NV2 User’s Manual
3-41
5 User Communication
3
Communic
ation
■
Variable
Select this check box to change the transmitted data size according to conditions. This can be configured only when
No Conversion is selected under Conversion Type. When the check box is not selected, the amount of data
(bytes) transmitted is data (bytes) for Number of bytes x Words.
Examples: Device for transmission command data
Example 1
When the trigger condition is satisfied, the value of device is read and data is transmitted in the following order.
Example 2
When the trigger condition is satisfied, the value of device is read and data is transmitted in the following order.
NULL (00h):
Send the data from the start data of the value of device up to 00 (hexadecimal). Data 00 will not
be sent. This setting is effective for sending only the character data section of character data
having 00 (hexadecimal) as the last data.
Device:
Specify a word device to which a number of bytes is applied for transmitted data.
Click
to display the Device Address Settings dialog box. For the device address configuration
procedure, refer to Chapter 2 “5.1 Device Address Settings” on page 2-67.
When the value of device exceeds Number of bytes x Words, or when it is negative, the Device
Data Variable Specification Error (address+0, bit 6) of the Status Device changes to 1, and
transmission does not occur.
Item
Setting
Conversion Type
No Conversion
Device
LDR100
Use Reference Device
OFF
Storage Method of data
from Upper byte
Number of bytes
1
Words
3
Variable
OFF
Item
Setting
Conversion Type
No Conversion
Device
LDR100
Use Reference Device
OFF
Storage Method of data
from Lower byte
Number of bytes
2
Words
3
Variable
OFF
1234h
LDR100:
5678h
LDR101:
9ABCh
LDR102:
No conversion
12h
Upper
Lower
Value of Device
34h
56h
78h
9Ah
BCh
from Upper byte
1 byte
Transmission data
12h
56h
9Ah
Order of transmission
Words: 3
LDR100:
LDR101:
Transmission data
34h
12h
78h
9ABCh
LDR102:
9Ah
BCh
56h
BCh
9Ah
Order of transmission
1234h
5678h
12h
34h
56h
78h
No conversion
Upper
Lower
Value of Device
from Lower byte
2 bytes
Words: 3