7-46
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 will be 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 expected response in details.
• Response to the RUN Command and Frequency Reference
The response to the DSR message written consists of the following items.
CRC-16 check (Set with <c>)
Number of write data registers: 2
Write start register number (RUN command: 0001)
Function code (Write 10)
Slave address (Set with <a>)
Set data: <a> + [10] + [00] + [01] + [00] + [02] + <c>
<a>
The Slave address is set in the address box. Insert the address with the Insert icon.
[10] + [00] + [01] + [00] + [02]
Set the constants contained in the response.
Use Set Constant and set the constants in Hex.
<c>
The check code is set in the check code box. Insert the check code by using the Insert icon. All the
data including the address data before the check code is used. Mark all the items if the Protocol
Support Tool is used. The check code is automatically set by the CX-Protocol.
• Response to the Inverter Status Read
The response to the DSR message to request the Inverter status in register 002C Hex consists of the
following items.
CRC-16 check (Set with <c>)
Inverter status data (Set with variable)
Number of bytes of attached data (set with <l>)
Function code (Write 10)
Slave address (Set with <a>)
Set data: <a> + [03] + <I> + (W (1N + 1), 2) + <c>
<a., [03], <c>
The address data, constant data, and check code data are the same as the above.
Communications Chapter 7
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