FEDERAL PACIFIC NEF431020 MOLDED CASE 3P 20A 480V-AC CI

FEDERAL PACIFIC NEF431020 MOLDED CASE 3P 20A 480V-AC CI

6. 當(dāng)完成編輯“主機(jī)請(qǐng)求表”時(shí)，單擊確認(rèn)按鈕保存更改。

7. 在關(guān)閉“主機(jī)請(qǐng)求表”后，編輯一個(gè)用于特殊數(shù)據(jù)寄存器D8054 (傳輸?shù)却龝r(shí)間)和錯(cuò)誤檢測的用戶程序。

8. 將用戶程序下載到CPU模塊。

現(xiàn)在，設(shè)置Modbus主機(jī)完成。

Modbus從機(jī)設(shè)置

在 WindLDR 功能域設(shè)置中為端口 1 至端口 7 選擇Modbus ASCII 從機(jī)或 Modbus RTU（遠(yuǎn)程終端設(shè)備）從機(jī)，則可使用 Modbus 從機(jī)通信。 當(dāng)Modbus從機(jī)從Modbus主機(jī)接收請(qǐng)求時(shí)，Modbus從機(jī)根據(jù)請(qǐng)求讀取或?qū)懭霐?shù)據(jù)。 在用戶程序的END處理時(shí)處理請(qǐng)求。

使用WindLDR設(shè)置Modbus從機(jī)通信用于Modbus ASCII或Modbus RTU。 由于這些設(shè)置與用戶程序相關(guān)，所以必須在更改設(shè)置后將用戶程序下載到MicroSmart。

1. 在WindLDR菜單欄中選擇設(shè)置>功能設(shè)置>通信端口。此時(shí)出現(xiàn)通信端口的“功能設(shè)置”對(duì)話框。

2. 在“端口2”的“通信模式”下拉列表中，選擇Modbus ASCII從機(jī)或Modbus RTU從機(jī)

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