Yokogawa Button Operated MV2000 - Manual (Page 52)

IM MV1000-17E
2-37
Using the Ethernet Interface
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2
3
4
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7
App
Index
Function for Automatically Assigning MW100s to the Modbus Client (MV2000
only)
The following setup is carried out from the MV using YOKOGAWA MW100 Data
Acquisition Unit as a Modbus server.
If the MV2000 is a Modbus client, MW100s—Modbus servers on the network—can be
automatically assigned to the MV2000. This feature is available only on MV2000s with
the external input channel function (/MC1 option).
Setup Preparation
Configure the MW100s so that they are ready to make measurements (IP address,
system construction, range setting, and the like of the MW100s that are going to be
automatically assigned). For details, see the MW100 User’s Manual.
Setup Procedure
If the MV IP address is not set, set it before carrying out the procedure below.
1. Press MENU and then select Menu tab > Basic setting mode > Menu tab >
Communication (Ethernet) > Modbus client > Auto setting.
2. Carefully read the displayed precautions. Select Yes to execute the auto setting.
Select No to return to the screen operation.
3. From the list of MW100s that is displayed, select the MW100s to be connected
using the up and down arrow keys, and press DISP/ENTER. The selected
MW100s are assigned to the external input channels of the MV.
Displays the IP address or host name. Displays the MW100 unit number. The list displays up to
16 units in order from the smallest unit number.
Pressing the Call soft key causes “--” to blink for 2 seconds on the 7-segment LED
display of the selected MW100.
This feature allows you to check which MW100 is selected if multiple MW100s are connected.
Displays the status of the external input
channel assignments.
No settings: The MW100 is not automatically
assigned.
Not Ready: The MW100 cannot be connected.*
A value: Displays the number of the
assigned external input channel
Example: If an MW100 is assigned
to external input channels
201 to 220, the status
displays 201/220.
To correct the problem, see the
MV1000/MV2000 User’s Manual.
2.9 Reading/Writing Data on Another Device from the MV via Modbus