Yokogawa Value Series FX1000 Manuel d'utilisateur télécharger pdf (Page 75)

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IM 04L21B01-64EN

Modbus master

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 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

• Command

Set the transmitted command type.

Settings Description

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 computation channel (32-bit signed integer type) to the slave.

You can only select [R-Math] or [W-Math] on models that have the /M1, /PM1, or /PWR1 option.

• Start channel/End channel (master channel numbers)

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

you can specify vary depending on the command type and are shown below. However,

the total number of channels that you can specify varies depending on the model.

R-Math: C01 to C24, Write: 1 to 12, W-Math: 101 to 124

• Address

Enter the address of the slave device in the range of 1 to 247.

2.6 Entering Basic Settings

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Yokogawa Value Series FX1000 Manuel d'utilisateur Page 75