Yokogawa DAQWORX - Manual (Page 331)

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Setting the Recorder
7.8 Setting MV1000/MV2000
MODBUS Client
Changes the upper/lower display area
Click to display the channel selection screen
Communication interval
Set the read cycle to 125ms, 250ms, 500ms, 1s, 2s, 5s, or 10s.
Auto recovery
Set the interval for retrying the connection when the connection is interrupted for some
reason. Select OFF, 10s, 20s, 30s, 1min, 2min, 5min, 10min, 20min, 30min, or 1h.
Modbus Server setting
• Server No.
Select from 1 to 16 for the server registration numbers to be configured.
• Port No.
Enter the port number in the range of 0 to 65535 for the selected server. The default
value is 502.
• Host Name
Set the destination Modbus server name using up to 64 alphanumeric characters.
• If the DNS is used, you can set the host name as a server name.
• You can also set the IP address. In this case, the DNS is not required.
• Unit
Select [Auto] if the unit number of the destination server is not required; Otherwise,
select [Fixed]. If you select [Fixed], the [Unit No.] item is displayed.
• Unit No.
Enter a fixed unit number in the range of 0 to 255.
Command setting
• Client command No.
Select from 1 to 16 for the transmitted command numbers to be configured.
• Command
Set the command type.
Settings Description
Read Read to the external input channel (16-bit signed integer type) from the server.
R-Math Read to the communication input data (32-bit floating point type) from the server.
Write Write the measurement channel (16-bit signed integer type) to the server.
W-Math Write the measurement channel (32-bit signed integer type) to the server.
[Read] can be selected on MV2000s with the external input channel (/MC1 option) installed.
[R-Math] and [W-Mat] can be selected on models with the computation function (/M1 or
/PM1 option) installed.