IDEC High Performance Series - 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