Omron SYSDRIVE 3G3MV User Manual page 243

Communications
Note The CRC-16 check code is used for communications with the 3G3MV. Select the
CRC-16 check code and set the initial value to 65535.
Select Reverse for the conversion method. Then select BIN.
Length (l)
Set the length of the data.
Note All communications with the 3G3MV 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 Execute
Address 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 Data Size 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 com-
mand) consists of the following items.
Function code (Write 10)
Slave address (Set with <a>)
Set data: <a> + [10] + [00] + [01] + [00] + [02] + <I> + (R (3N + 3), 4) + <c>
<a>
The Slave address is set in the address box. Insert the address with the Insert icon.
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
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