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Wiki source code of PLC

Last modified by xingzhi lin on 2026/01/19 14:26
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1 {{velocity}}
2 $xwiki.ssx.use('Download.WebHome')
3 (%class="download-options"%)(((
4 (%class="col-xs-12 download-container download-option version-option border-blue fa-icon fa-desktop"%)(((
5 = [[Manual>>Servo.Manual.WebHome]] =
6 Provides users with online viewing of Servo product Manuals of varies series and Servo software help.
7 (%class="version-footer"%)(((
8 [[VD2 SA>>Servo.Manual.02 VD2 SA Series.WebHome||class="btn btn-primary]] [[Software Help>>Servo.Manual.04 Servo SCTool Help.WebHome||class="btn btn-primary]] [[More>>Servo.Manual.WebHome||class="btn btn-primary]]
9 )))
10 )))
11 (%class="col-xs-12 download-container download-option version-option border-cyan fa-icon fa-download"%)(((
12 =[[Download>>Servo.Download.WebHome]]=
13 Provides users with manuals, hardwares, and softwares downloads.
14 (%class="version-footer"%)(((
15 [[Manual>>Servo.Download.Manual.WebHome||class="btn btn-info]] [[Hardware>>Servo.Download.2 Hardware.WebHome||class="btn btn-info]] [[Software>>Servo.Download.3 Software.WebHome||class="btn btn-info]]
16 )))
17 )))
18 (%class="col-xs-12 download-container download-option version-option border-green fa-icon fa-table"%)(((
19 = [[Demo>>Servo.Demo.WebHome]] =
20 Provides users with demonstrations about Wecon servo drives.
21 (%class="version-footer"%)(((
22 [[More>>Servo.Demo.WebHome||class="btn btn-success]]
23 )))
24 )))
25 )))
26 {{/velocity}}
27 (((
28 (% class="wikigeneratedid" %)
29
30
31 = **PLC LX3V - Modbus programming Config** =
32 )))
33
34 (% style="color:#000000; font-family:Arial,sans-serif; font-size:13pt; font-style:normal; font-variant:normal; font-weight:700; text-decoration:none; white-space:pre-wrap" %)**การตั้งค่า Modbus Communication (RS-485)**
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36 (% style="line-height:1.38; margin-top:16px; margin-bottom:16px" %)
37 (% style="color:#000000; font-family:Arial,sans-serif; font-size:11pt; font-style:normal; font-variant:normal; font-weight:400; text-decoration:none; white-space:pre-wrap" %)ตัวอย่างการตั้งค่าการสื่อสารผ่านพอร์ต COM2 (RS-485) สำหรับ PLC โดยใช้โหมด RTU พร้อมกำหนดค่าในโปรแกรม Ladder ดังนี้:
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39 * (% style="color:#000000; font-family:Arial,sans-serif; font-size:11pt; font-style:normal; font-variant:normal; font-weight:700; text-decoration:none; white-space:pre-wrap" %)**Communication Format**(% style="color:#000000; font-family:Arial,sans-serif; font-size:11pt; font-style:normal; font-variant:normal; font-weight:400; text-decoration:none; white-space:pre-wrap" %):
40 ** (% style="color:#000000; font-family:Arial,sans-serif; font-size:11pt; font-style:normal; font-variant:normal; font-weight:400; text-decoration:none; white-space:pre-wrap" %)Baud Rate: 19200(%%)
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42 ** (% style="color:#000000; font-family:Arial,sans-serif; font-size:11pt; font-style:normal; font-variant:normal; font-weight:400; text-decoration:none; white-space:pre-wrap" %)Data Bits: 8(%%)
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44 ** (% style="color:#000000; font-family:Arial,sans-serif; font-size:11pt; font-style:normal; font-variant:normal; font-weight:400; text-decoration:none; white-space:pre-wrap" %)Parity: None(%%)
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46 ** (% style="color:#000000; font-family:Arial,sans-serif; font-size:11pt; font-style:normal; font-variant:normal; font-weight:400; text-decoration:none; white-space:pre-wrap" %)Stop Bit: 1(%%)
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48 ** (% style="color:#000000; font-family:Arial,sans-serif; font-size:11pt; font-style:normal; font-variant:normal; font-weight:400; text-decoration:none; white-space:pre-wrap" %)Protocol: RTU(%%)
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50 * (% style="color:#000000; font-family:Arial,sans-serif; font-size:11pt; font-style:normal; font-variant:normal; font-weight:700; text-decoration:none; white-space:pre-wrap" %)**Ladder Logic ตั้งค่าค่าเริ่มต้น:**
51 ** (% style="color:#188038; font-family:~"Roboto Mono~",monospace; font-size:11pt; font-style:normal; font-variant:normal; font-weight:400; text-decoration:none; white-space:pre-wrap" %)MOV H91 → D8120(% style="color:#000000; font-family:Arial,sans-serif; font-size:11pt; font-style:normal; font-variant:normal; font-weight:400; text-decoration:none; white-space:pre-wrap" %) (ตั้งค่า Com Port)(%%)
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53 ** (% style="color:#188038; font-family:~"Roboto Mono~",monospace; font-size:11pt; font-style:normal; font-variant:normal; font-weight:400; text-decoration:none; white-space:pre-wrap" %)MOV K1 → D8121(% style="color:#000000; font-family:Arial,sans-serif; font-size:11pt; font-style:normal; font-variant:normal; font-weight:400; text-decoration:none; white-space:pre-wrap" %) (กำหนด Station No. = 1)(%%)
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55 ** (% style="color:#188038; font-family:~"Roboto Mono~",monospace; font-size:11pt; font-style:normal; font-variant:normal; font-weight:400; text-decoration:none; white-space:pre-wrap" %)MOV H2 → D8126(% style="color:#000000; font-family:Arial,sans-serif; font-size:11pt; font-style:normal; font-variant:normal; font-weight:400; text-decoration:none; white-space:pre-wrap" %) (ตั้งค่าโปรโตคอลเป็น RTU)(%%)
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57 * (% style="color:#000000; font-family:Arial,sans-serif; font-size:11pt; font-style:normal; font-variant:normal; font-weight:700; text-decoration:none; white-space:pre-wrap" %)**สถานะเริ่มต้น**(% style="color:#000000; font-family:Arial,sans-serif; font-size:11pt; font-style:normal; font-variant:normal; font-weight:400; text-decoration:none; white-space:pre-wrap" %): ใช้ (% style="color:#188038; font-family:~"Roboto Mono~",monospace; font-size:11pt; font-style:normal; font-variant:normal; font-weight:400; text-decoration:none; white-space:pre-wrap" %)M8002(% style="color:#000000; font-family:Arial,sans-serif; font-size:11pt; font-style:normal; font-variant:normal; font-weight:400; text-decoration:none; white-space:pre-wrap" %) (First Scan Flag) เป็น Trigger(%%)
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60 (% style="line-height:1.38; margin-top:16px; margin-bottom:16px" %)
61 (% style="color:#000000; font-family:Arial,sans-serif; font-size:11pt; font-style:normal; font-variant:normal; font-weight:400; text-decoration:none; white-space:pre-wrap" %)เหมาะสำหรับการสื่อสารกับอุปกรณ์ Modbus RTU ผ่าน RS-485 ได้ทันทีโดยไม่ต้องเขียนโปรแกรมเพิ่มเติมมาก
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