Yokogawa DAQWORX Manuel d'utilisateur télécharger pdf (Page 251)

7-55

IM WX104-01E

Index

Configuring the MV1000/MV2000

Modbus master

Click to display the channel selection screen

Modbus master settings are enabled when you set [Protocol] to [Master] under [Serial] -

[Serial] in the [Basic Setting] tab.

Basic setting

• Read cycle

Set the read cycle to 125ms, 250ms, 500ms, 1s, 2s, 5s, or 10s.

• Timeout

Set the command timeout value to 125ms, 250ms, 500ms, 1s, 2s, 5s, 10s, or 1min.

• Retrials

Set the number of retrials when there is no response from the slave. Select OFF, 1, 2,

3, 4, 5, 10, or 20.

• Inter-block delay

Set the inter-block delay to OFF, 5ms, 10ms, 15ms, 45ms, or 100ms.

• Auto recovery

Set the auto recovery time from communication halt. Select OFF, 1min, 2min, 5min,

10min, 20min, 30min, or 1h.

Command setting

• Master command No.

Select from 1 to 16 for the command numbers to be congured.

• Command

Set the transmitted command type.

Settings Description

Read Read to the external input channel (16-bit signed integer type) from the slave.

R-Math Read to the communication input channel (32-bit floating point type) from the

slave.

Write Write the measurement channel (16-bit signed integer type) to the slave.

W-Math Write the measurement channel (32-bit signed integer type) to the slave.

[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 option)

installed.

• Start channel/End channel (master channel numbers)

Enter the rst and last channel numbers of input/output. The range of channels that

you can enter varies depending on the command type as follows:

Read: 201 to 440, R-Math: C01 to C60, Write: 1 to 48, W-Math: 101 to 160

7.5 Entering Basic Settings

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Yokogawa DAQWORX Manuel d'utilisateur Page 251