Omron SYSDRIVE 3G3JV User Manual page 162

Communications
Message Name
The label (name) of the sequence. Input an appropriate, easy-to-distinguish name.
Note Set the label in the send message box in the table shown under Creating a Step.
Header <h>
Terminator <t>
Set the header and terminator.
Note No header or terminator is used for communications with the 3G3JV. Therefore, set both to None.
Check Code <c>
Set the check code.
Note The CRC-16 check code is used for communications with the 3G3JV. Select the CRC-16 check
code and set the default value to 65535.
Select Reverse for the conversion method. Then select BIN for date type.
Length <l>
Set the length of the data.
Note All communications with the 3G3JV are performed in byte units. Select 1 Byte and BIN. Select No
for reading data because there is no data to be read.
Address <a>
Set the addresses of the Slaves.
Note In this example, the Slave addresses are set in S + 2, S + 5, and S + 8. Therefore, retrieve the data
from those locations.
The address is set in the LSB of each word. To read the byte, select Variable Reverse, otherwise
the data is read from the LSB. Then click on Edit Variable with the left button of the mouse.
Select Read R () and set Data/Address to the operand (3N + 2) using the number (N) of times to
repeat the step.
Set Edit Length to 1 byte as a default. If the default value has been changed, set it to 0N + 1.
Data
Set the DSR message in details.
• DSR Message Requesting that the RUN Command and Frequency Reference be Written
The DSR message to write data to two registers from register 0001 Hex (the RUN command) consists
of the following items.
Function code (Write 10)
Slave address (Set with <a>)
7-46
Number of bytes of attached data (set with <l>)
Number of write data registers: 2
Write start register number (RUN command: 0001)
CRC-16 check (Set with <c>)
Next register data
Set with variables
Start register data
Chapter 7