ABB 6637517A1模塊,6637517A1使用數(shù)據(jù)
PLC軟件配置
按照PLC文件中的說明安裝RTU接口模塊。2、執(zhí)行PLC組態(tài)軟件。
3.從主菜單進(jìn)入配置包。4、選擇合適的文件夾。5.從配置菜單中選擇輸入/輸出配置。
6、光標(biāo)指向包含RTU接口模塊的插槽。7.選擇“其他”和“外部”。
8.以下屏幕應(yīng)顯示光標(biāo)向下至%I起始地址，并輸入8%I位的起始地址。10.將光標(biāo)向下移動(dòng)到%I大小，輸入RTU接口模塊（8）的%I位數(shù)。11.對%Q起始地址和大小重復(fù)步驟9和10。
ABB 6637517A1模塊12.將光標(biāo)移到字節(jié)1并輸入1（0000000 1）。這向PLC表示RTU模塊是智能模塊。
13.字節(jié)2和3用于HE693RTU940的撥號位置（第3.7節(jié)）。注：這僅適用于HE693RTU940。
14.應(yīng)根據(jù)下一頁的表2-2設(shè)置字節(jié)2至12。15.所有剩余字節(jié)應(yīng)設(shè)置為0Modbus協(xié)議
Modbus協(xié)議使用主/從協(xié)議，可以支持一個(gè)主總線和一個(gè)以上總線的公共總線至247個(gè)Modbus從站。然而，請注意，通常用于Modbus的介質(zhì)（RS-485）限于32單位。作為Modbus從設(shè)備，RTU接口模塊必須分配一個(gè)唯一的地址。地址零保留用于向所有單元廣播消息。RTU接口模塊將處理廣播將返回消息，但不返回響應(yīng)數(shù)據(jù)包。
Configuration with the PLC Software
1. Install the RTU Interface module as described in the PLC documentation.
2. Execute the PLC Configuration Software.
3. Enter the Configuration Package from the Main Menu <F2>.
4. Select the proper folder.
5. Choose I/O Configuration from the Configuration Menu <F1>.
6. Cursor over to the slot containing the RTU Interface module.
7. Select Other <F8> and Foreign <F3>.
8. The following screen should be displayedCursor down to the %I starting address and enter the starting address for the 8 %I bits.
10. Cursor down to the %I size and enter the number of %I bits for the RTU Interface Module (8).
11. Repeat steps 9 and 10 for the %Q starting address and size.
12. Cursor over to byte 1 and enter a 1 (00000001). This signifies to the PLC that the RTU Module is
an intelligent module.
13. Bytes 2 and 3 are used for the location of the dial number for the HE693RTU940 (Section 3.7).
Note: This only applies to the HE693RTU940.
14. Bytes 2 through 12 should be setup according to Table 2-2 on the following page.
15. All remaining bytes should be set to 0Modbus Protocol
The Modbus protocol uses a Master/Slave protocol that can support a common bus of one master and up
to 247 Modbus Slaves. However, note that the media (RS-485) typically used for Modbus is limited to 32
units. As a Modbus slave, the RTU Interface Module must be assigned a unique address. Address zero
is reserved for broadcasting a message to all units. The RTU Interface Modules will process broadcast
messages but no response packet will be returned.
