Yokogawa Data Acquisition with PID Control CX2000 User Manual

Page 103

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4-9

IM 04L31A01-17E

4

Modbus Protocol

Selecting the Number of Retrials

9.

Use the arrow keys to move the cursor to the [Retrials] box.

10.

Press one of the soft keys from [Off] to [20] to select the number of retrials.

On the CX1000, confirm the settings here.
To confirm the new settings, press the DISP/ENTER key. To cancel the
settings, press the ESC key.

For a detailed procedure in confirming or canceling settings, see “Setup Procedure Using
Operation Keys” on page ix.

Setting Commands

• Turning On/Off the command
On the CX1000, if you confirmed the settings in step 10, press the ESC key to return
to the communication function setting menu of step 4. Then, press the [#8 (Modbus
master (COMMAND))] soft key.

11.

Use the arrow keys to move the cursor to the [On/Off] box.

12.

Press the [On] or [Off] soft key.
If you selected [On] proceed to step 13; if you selected [Off] proceed to step 24.

• Setting the communication input data (First, Last) to read the data in
13.

Use the arrow keys to move the cursor to the [First] box.

14.

Press one of the soft keys from [C01] to [C30] to select the first channel.

15.

Set the last channel in the similar fashion as described in step 14.

• Setting the address of the slave device
16.

Use the arrow keys to move the cursor to the [Address] box.

17.

Press the [Input] soft key. An entry box (numeric value input pop-up window)
appears.

18.

Enter the address in the entry box.

19.

Press the DISP/ENTER key. On the CX1000, select [ENT] and then press the
DISP/ENTER key.
The address that you entered appears in the [Address] box.

4.3 Setting the Modbus Master Function

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