去年帮一家机械厂做设备监控系统时,遇到个让人头疼的场景——车间里散落着二十多台不同品牌的PLC,有西门子的、三菱的、还有国产的。老板提了个看似简单的需求:"能不能整个界面,让我直接看到所有设备的运行状态?"
当时用C#试过,配环境就折腾了半天。后来灵机一动:Python + Tkinter + Modbus!这套组合拳下来,三天就交付了第一版。要知道,Modbus协议在工业领域的普及率堪比"螺丝刀",而Tkinter作为Python自带的GUI库,装完Python就能用。
可是——真动手时才发现坑比想象的多。连接总是莫名其妙断开,读取寄存器时程序界面直接卡死,多台设备轮询起来像蜗牛爬... 这些痛点,官方文档可不会告诉你。
今天这篇文章,我会把这个项目的完整实现思路、踩过的所有坑、以及优化到生产环境可用的全部细节掏出来。 文末附完整代码模板,拿走即用。
误区一:直接在主线程里读取Modbus数据
见过太多人这么写:点个按钮 → 调用client.read_holding_registers() → 界面卡成PPT。原因很简单——Modbus通信本质是网络IO,默认超时3秒。这期间主线程阻塞,Tkinter的事件循环停摆,用户疯狂点鼠标都没反应。
误区二:把异常处理当摆设
工业现场可不是实验室。网线松了、PLC断电了、从站地址配错了... 这些都是家常便饭。见过有人写的客户端,连接失败直接崩溃退出,操作员一脸懵。
误区三:轮询策略拍脑袋定
有人为了"实时性"把刷新间隔设成100ms,结果CPU占用飙到80%。有人图省事5秒刷一次,结果设备报警了半分钟才发现。这个平衡点,得根据实际业务算。
我做过压测:单线程同步读取10个寄存器,平均耗时120-180ms(局域网环境)。如果要监控20台设备,每台读5个地址,纯串行执行下来需要12-18秒!这延迟,别说实时监控了,看个设备状态都急死人。
经过几个版本迭代,我总结出这套架构,既稳定又好维护:
┌─────────────────┐ │ GUI层 (Tkinter) │ → 只管显示和交互 ├─────────────────┤ │ 业务逻辑层 │ → 数据处理和状态管理 ├─────────────────┤ │ 通信层 (Modbus) │ → 独立线程处理IO └─────────────────┘
关键点:通信层必须跑在独立线程,通过队列与GUI层交换数据。 就像餐厅的前厅和后厨,各司其职。
先把骨架立起来。这个版本实现了最基础的界面和连接功能:
pythonimport tkinter as tk
from tkinter import ttk, messagebox, scrolledtext
import threading
import queue
from pymodbus.client import ModbusTcpClient
from pymodbus.exceptions import ModbusException
import time
class ModbusClientGUI:
def __init__(self, root):
self.root = root
self.root.title("工业级Modbus客户端 v1.0")
self.root.geometry("900x650")
# 核心组件
self.client = None
self.is_connected = False
self.comm_thread = None
self.stop_flag = False
self.data_queue = queue.Queue() # 线程间通信的桥梁
self._build_ui()
self._start_queue_monitor() # 持续监听数据队列
def _build_ui(self):
# ===== 连接配置区 ===== config_frame = ttk.LabelFrame(self.root, text="📡 连接配置", padding=10)
config_frame.grid(row=0, column=0, padx=10, pady=5, sticky="ew")
ttk.Label(config_frame, text="PLC地址: ").grid(row=0, column=0, sticky="w")
self.ip_entry = ttk.Entry(config_frame, width=15)
self.ip_entry.insert(0, "127.0.0.1")
self.ip_entry.grid(row=0, column=1, padx=5)
ttk.Label(config_frame, text="端口:").grid(row=0, column=2, sticky="w", padx=(20, 0))
self.port_entry = ttk.Entry(config_frame, width=8)
self.port_entry.insert(0, "502")
self.port_entry.grid(row=0, column=3, padx=5)
self.connect_btn = ttk.Button(config_frame, text="连接", command=self._toggle_connection)
self.connect_btn.grid(row=0, column=4, padx=20)
# 连接状态指示灯(用Canvas画个圆点)
self.status_canvas = tk.Canvas(config_frame, width=20, height=20, bg="white", highlightthickness=0)
self.status_canvas.grid(row=0, column=5)
self.status_light = self.status_canvas.create_oval(5, 5, 15, 15, fill="gray")
# ===== 数据读取区 ===== read_frame = ttk.LabelFrame(self.root, text="📖 寄存器读取", padding=10)
read_frame.grid(row=1, column=0, padx=10, pady=5, sticky="ew")
ttk.Label(read_frame, text="寄存器地址:").grid(row=0, column=0, sticky="w")
self.addr_entry = ttk.Entry(read_frame, width=10)
self.addr_entry.insert(0, "0")
self.addr_entry.grid(row=0, column=1, padx=5)
ttk.Label(read_frame, text="数量:").grid(row=0, column=2, sticky="w", padx=(20, 0))
self.count_entry = ttk.Entry(read_frame, width=8)
self.count_entry.insert(0, "10")
self.count_entry.grid(row=0, column=3, padx=5)
ttk.Button(read_frame, text="单次读取", command=self._single_read).grid(row=0, column=4, padx=10)
self.auto_refresh_var = tk.BooleanVar()
ttk.Checkbutton(read_frame, text="自动刷新(2秒)", variable=self.auto_refresh_var,
command=self._toggle_auto_refresh).grid(row=0, column=5)
# ===== 数据显示区 ===== display_frame = ttk.LabelFrame(self.root, text="📊 实时数据", padding=10)
display_frame.grid(row=2, column=0, padx=10, pady=5, sticky="nsew")
# 用Treeview做表格展示
columns = ("地址", "十进制值", "十六进制", "二进制", "时间戳")
self.data_tree = ttk.Treeview(display_frame, columns=columns, show="headings", height=12)
for col in columns:
self.data_tree.heading(col, text=col)
self.data_tree.column(col, width=120 if col != "二进制" else 180)
scrollbar = ttk.Scrollbar(display_frame, orient="vertical", command=self.data_tree.yview)
self.data_tree.configure(yscrollcommand=scrollbar.set)
self.data_tree.pack(side="left", fill="both", expand=True)
scrollbar.pack(side="right", fill="y")
# ===== 日志区 ===== log_frame = ttk.LabelFrame(self.root, text="📝 通信日志", padding=5)
log_frame.grid(row=3, column=0, padx=10, pady=5, sticky="ew")
self.log_text = scrolledtext.ScrolledText(log_frame, height=8, state="disabled")
self.log_text.pack(fill="both", expand=True)
# 配置网格权重,让界面自适应缩放
self.root.columnconfigure(0, weight=1)
self.root.rowconfigure(2, weight=1)
def _log(self, message):
"""线程安全的日志输出"""
timestamp = time.strftime("%H:%M:%S")
self.log_text.configure(state="normal")
self.log_text.insert("end", f"[{timestamp}] {message}\n")
self.log_text.see("end") # 自动滚动到最新
self.log_text.configure(state="disabled")
def _toggle_connection(self):
if not self.is_connected:
ip = self.ip_entry.get().strip()
try:
port = int(self.port_entry.get())
except ValueError:
messagebox.showerror("错误", "端口必须是数字!")
return
# 在子线程里建立连接,避免阻塞
threading.Thread(target=self._connect, args=(ip, port), daemon=True).start()
else:
self._disconnect()
def _connect(self, ip, port):
try:
self._log(f"正在连接 {ip}:{port}...")
self.client = ModbusTcpClient(ip, port=port, timeout=3)
if self.client.connect():
self.is_connected = True
self._log("✅ 连接成功!")
# 更新UI(必须在主线程执行)
self.root.after(0, self._update_connection_ui, True)
else:
self._log("❌ 连接失败,请检查网络和设备状态")
self.client = None
except Exception as e:
self._log(f"❌ 连接异常: {str(e)}")
self.client = None
def _disconnect(self):
self.stop_flag = True
if self.client:
self.client.close()
self.client = None
self.is_connected = False
self._log("🔌 已断开连接")
self._update_connection_ui(False)
def _update_connection_ui(self, connected):
"""更新连接相关的UI状态"""
if connected:
self.status_canvas.itemconfig(self.status_light, fill="green")
self.connect_btn.config(text="断开")
self.ip_entry.config(state="disabled")
self.port_entry.config(state="disabled")
else:
self.status_canvas.itemconfig(self.status_light, fill="gray")
self.connect_btn.config(text="连接")
self.ip_entry.config(state="normal")
self.port_entry.config(state="normal")
def _single_read(self):
if not self.is_connected:
messagebox.showwarning("提示", "请先连接设备!")
return
try:
addr = int(self.addr_entry.get())
count = int(self.count_entry.get())
except ValueError:
messagebox.showerror("错误", "地址和数量必须是数字!")
return
# 放到子线程读取
threading.Thread(target=self._read_registers, args=(addr, count), daemon=True).start()
def _read_registers(self, address, count):
"""实际的Modbus读取操作(在子线程中执行)"""
try:
# address 是位置参数,count 和 device_id 都必须是关键字参数
result = self.client.read_holding_registers(address, count=count, device_id=1)
if result.isError():
self.data_queue.put({"type": "error", "msg": f"读取失败: {result}"})
else:
# 把数据打包放进队列,交给主线程处理
self.data_queue.put({
"type": "data",
"address": address,
"values": result.registers,
"timestamp": time.strftime("%H:%M:%S")
})
except ModbusException as e:
self.data_queue.put({"type": "error", "msg": f"Modbus异常: {str(e)}"})
except Exception as e:
self.data_queue.put({"type": "error", "msg": f"读取出错: {str(e)}"})
def _start_queue_monitor(self):
"""持续监听队列,处理子线程传来的数据"""
try:
while True:
data = self.data_queue.get_nowait()
if data["type"] == "error":
self._log(data["msg"])
elif data["type"] == "data":
self._update_data_display(data)
except queue.Empty:
pass
# 每100ms检查一次队列
self.root.after(100, self._start_queue_monitor)
def _update_data_display(self, data):
"""更新表格显示"""
# 清空旧数据
for item in self.data_tree.get_children():
self.data_tree.delete(item)
# 插入新数据
base_addr = data["address"]
for i, value in enumerate(data["values"]):
addr = base_addr + i
hex_val = f"0x{value: 04X}"
bin_val = f"0b{value:016b}"
self.data_tree.insert("", "end", values=(
addr, value, hex_val, bin_val, data["timestamp"]
))
self._log(f"✅ 成功读取 {len(data['values'])} 个寄存器")
def _toggle_auto_refresh(self):
if self.auto_refresh_var.get():
self.stop_flag = False
self.comm_thread = threading.Thread(target=self._auto_refresh_loop, daemon=True)
self.comm_thread.start()
self._log("🔄 已启动自动刷新")
else:
self.stop_flag = True
self._log("⏸ 已停止自动刷新")
def _auto_refresh_loop(self):
"""自动刷新循环(独立线程)"""
while not self.stop_flag and self.is_connected:
try:
addr = int(self.addr_entry.get())
count = int(self.count_entry.get())
self._read_registers(addr, count)
except ValueError:
break
time.sleep(2) # 刷新间隔
if __name__ == "__main__":
root = tk.Tk()
app = ModbusClientGUI(root)
root.mainloop()

1. 线程安全的数据交换
用queue.Queue实现生产者-消费者模式。子线程读完数据扔进队列就不管了,主线程定时去取。这样既不会卡界面,也不用担心线程冲突。
2. UI状态管理清晰
连接后自动禁用IP/端口输入框,防止手贱误操作。状态指示灯实时反馈,比纯文字提示直观多了。
3. 异常处理全覆盖
网络超时?捕获。Modbus协议错误?捕获。用户输入非法?校验。每个可能出问题的地方都有兜底方案。
基础版能用了,但还不够"专业"。现在加入连接池管理和批量轮询:
pythonimport threading
import time
import logging
from typing import Dict, List, Tuple, Callable, Any
from pymodbus.client import ModbusTcpClient
from pymodbus.exceptions import ModbusException
class DeviceManager:
"""多设备管理器 - 支持并发轮询多个Modbus设备"""
def __init__(self, data_callback: Callable[[Dict[str, Any]], None]):
self.devices = {} # {device_id: {"client": xxx, "config": xxx}}
self.data_callback = data_callback
self.polling_thread = None
self.stop_polling = False
self.lock = threading.Lock() # 线程安全锁
# 配置日志
logging.basicConfig(level=logging.INFO)
self.logger = logging.getLogger(__name__)
def add_device(self, device_id: str, ip: str, port: int,
poll_addresses: List[Tuple[int, int]],
modbus_device_id: int = 1) -> bool:
"""添加设备到监控列表
Args: device_id: 设备唯一标识
ip: 设备IP地址
port: Modbus TCP端口
poll_addresses: 要轮询的地址列表 [(起始地址, 数量), ...]
modbus_device_id: Modbus设备ID(从站地址)
Returns: bool: 连接成功返回True,失败返回False
""" try:
client = ModbusTcpClient(ip, port=port, timeout=3)
if client.connect():
with self.lock:
self.devices[device_id] = {
"client": client,
"ip": ip,
"port": port,
"modbus_device_id": modbus_device_id,
"poll_addresses": poll_addresses,
"last_success": time.time(),
"error_count": 0,
"status": "connected",
"total_reads": 0,
"failed_reads": 0
}
self.logger.info(f"设备 {device_id} ({ip}:{port}) 连接成功")
return True
else:
self.logger.error(f"设备 {device_id} ({ip}:{port}) 连接失败")
client.close()
return False
except Exception as e:
self.logger.error(f"添加设备 {device_id} 时发生异常: {str(e)}")
return False
def remove_device(self, device_id: str) -> bool:
"""移除设备"""
with self.lock:
if device_id in self.devices:
try:
self.devices[device_id]["client"].close()
del self.devices[device_id]
self.logger.info(f"设备 {device_id} 已移除")
return True
except Exception as e:
self.logger.error(f"移除设备 {device_id} 时发生错误: {str(e)}")
return False
def get_device_status(self) -> Dict[str, Dict[str, Any]]:
"""获取所有设备状态"""
with self.lock:
status = {}
for device_id, device_info in self.devices.items():
status[device_id] = {
"ip": device_info["ip"],
"port": device_info["port"],
"status": device_info["status"],
"last_success": device_info["last_success"],
"error_count": device_info["error_count"],
"total_reads": device_info["total_reads"],
"failed_reads": device_info["failed_reads"],
"success_rate": self._calculate_success_rate(device_info)
} return status
def _calculate_success_rate(self, device_info: Dict[str, Any]) -> float:
"""计算设备读取成功率"""
total = device_info["total_reads"]
if total == 0:
return 0.0
return ((total - device_info["failed_reads"]) / total) * 100
def start_polling(self, interval: float = 1.5):
"""启动轮询所有设备
Args: interval: 轮询间隔(秒)
""" if self.polling_thread and self.polling_thread.is_alive():
self.logger.warning("轮询已在运行中")
return
self.stop_polling = False
self.polling_thread = threading.Thread(
target=self._polling_loop,
args=(interval,),
daemon=True,
name="ModbusPollingThread"
)
self.polling_thread.start()
self.logger.info(f"开始轮询,间隔: {interval}秒")
def stop_polling_devices(self):
"""停止轮询"""
self.stop_polling = True
if self.polling_thread:
self.polling_thread.join(timeout=10)
self.logger.info("轮询已停止")
def _polling_loop(self, interval: float):
"""轮询主循环 - 并发读取多个设备"""
self.logger.info("轮询线程启动")
while not self.stop_polling:
start_time = time.time()
# 获取当前活动设备列表(避免在循环中修改字典)
with self.lock:
active_devices = list(self.devices.items())
if not active_devices:
time.sleep(interval)
continue
# 为每个设备创建独立线程(提升并发性能)
threads = []
for device_id, device_info in active_devices:
if device_info["status"] == "connected":
t = threading.Thread(
target=self._poll_single_device,
args=(device_id, device_info),
name=f"Poll-{device_id}"
)
t.start()
threads.append(t)
# 等待所有设备读取完成(设超时防止卡死)
for t in threads:
t.join(timeout=5)
# 清理可能卡死的线程
alive_threads = [t for t in threads if t.is_alive()]
if alive_threads:
self.logger.warning(f"有 {len(alive_threads)} 个线程超时未完成")
# 计算剩余等待时间,保证固定周期
elapsed = time.time() - start_time
sleep_time = max(0, interval - elapsed)
if sleep_time > 0:
time.sleep(sleep_time)
def _poll_single_device(self, device_id: str, device_info: Dict[str, Any]):
"""读取单个设备的所有地址"""
client = device_info["client"]
modbus_device_id = device_info["modbus_device_id"]
for addr, count in device_info["poll_addresses"]:
if self.stop_polling:
break
try:
# 修复:使用正确的参数格式
result = client.read_holding_registers(
address=addr,
count=count,
device_id=modbus_device_id
)
# 更新统计
with self.lock:
device_info["total_reads"] += 1
if not result.isError():
# 回调通知主界面
try:
self.data_callback({
"device_id": device_id,
"address": addr,
"count": count,
"values": result.registers,
"timestamp": time.time(),
"status": "success"
})
except Exception as callback_error:
self.logger.error(f"数据回调异常: {str(callback_error)}")
# 更新设备状态
with self.lock:
device_info["last_success"] = time.time()
device_info["error_count"] = 0
device_info["status"] = "connected"
else:
self._handle_read_error(device_id, device_info, f"Modbus错误: {result}")
except ModbusException as e:
self._handle_read_error(device_id, device_info, f"Modbus异常: {str(e)}")
except Exception as e:
self._handle_read_error(device_id, device_info, f"读取异常: {str(e)}")
def _handle_read_error(self, device_id: str, device_info: Dict[str, Any], error_msg: str):
"""处理读取错误"""
with self.lock:
device_info["error_count"] += 1
device_info["failed_reads"] += 1
device_info["status"] = "error"
self.logger.warning(f"设备 {device_id} 读取失败: {error_msg}")
# 连续失败5次自动重连
if device_info["error_count"] >= 5:
self.logger.warning(f"设备 {device_id} 连续失败5次,尝试重连...")
self._try_reconnect(device_id, device_info)
def _try_reconnect(self, device_id: str, device_info: Dict[str, Any]):
"""尝试重新连接设备"""
try:
# 关闭旧连接
device_info["client"].close()
time.sleep(1) # 等待端口释放
# 创建新连接
new_client = ModbusTcpClient(
device_info["ip"],
port=device_info["port"],
timeout=3
)
if new_client.connect():
with self.lock:
device_info["client"] = new_client
device_info["error_count"] = 0
device_info["status"] = "connected"
self.logger.info(f"设备 {device_id} 重连成功")
# 通知重连成功
try:
self.data_callback({
"device_id": device_id,
"status": "reconnected",
"timestamp": time.time(),
"message": "设备重连成功"
})
except:
pass
else:
with self.lock:
device_info["status"] = "disconnected"
self.logger.error(f"设备 {device_id} 重连失败")
new_client.close()
except Exception as e:
with self.lock:
device_info["status"] = "disconnected"
self.logger.error(f"设备 {device_id} 重连异常: {str(e)}")
def manual_read(self, device_id: str, address: int, count: int = 1) -> Dict[str, Any]:
"""手动读取指定设备的数据
Args: device_id: 设备ID
address: 起始地址
count: 读取数量
Returns: Dict: 包含读取结果的字典
""" with self.lock:
if device_id not in self.devices:
return {"error": "设备不存在"}
device_info = self.devices[device_id]
try:
result = device_info["client"].read_holding_registers(
address=address,
count=count,
device_id=device_info["modbus_device_id"]
)
if not result.isError():
return {
"success": True,
"device_id": device_id,
"address": address,
"values": result.registers,
"timestamp": time.time()
} else:
return {"error": f"读取失败: {result}"}
except Exception as e:
return {"error": f"读取异常: {str(e)}"}
def close_all(self):
"""关闭所有连接"""
self.stop_polling_devices()
with self.lock:
for device_id, device_info in self.devices.items():
try:
device_info["client"].close()
self.logger.info(f"设备 {device_id} 连接已关闭")
except:
pass
self.devices.clear()
self.logger.info("所有设备连接已关闭")
def __del__(self):
"""析构函数 - 确保资源清理"""
try:
self.close_all()
except:
pass
# 使用示例
if __name__ == "__main__":
def data_handler(data):
"""数据处理回调函数"""
if data.get("status") == "success":
print(f"设备 {data['device_id']} 地址 {data['address']}: {data['values']}")
elif data.get("status") == "reconnected":
print(f"设备 {data['device_id']} 重连成功")
# 创建设备管理器
manager = DeviceManager(data_handler)
# 添加设备
success1 = manager.add_device("PLC1", "127.0.0.1", 502, [(0, 10), (100, 5)])
success2 = manager.add_device("PLC2", "127.0.0.1", 502, [(0, 8), (200, 3)])
if success1 or success2:
# 启动轮询
manager.start_polling(interval=2.0)
try:
# 运行60秒
time.sleep(60)
# 显示设备状态
status = manager.get_device_status()
for device_id, info in status.items():
print(f"设备 {device_id}: {info}")
except KeyboardInterrupt:
print("用户中断")
finally:
# 清理资源
manager.close_all()
else:
print("没有设备连接成功")
性能对比(20台设备,每台读5个地址):
| 方案 | 耗时 | CPU占用 |
|---|---|---|
| 串行同步读取 | 14-18秒 | 15% |
| 多线程并发 | 2-3秒 | 35% |
| 优化后(本方案) | 1.5-2秒 | 28% |
秘诀在于:线程池 + 智能超时控制 + 失败重连机制。
错误示范:
python# ❌ 在子线程直接操作Tkinter组件 - 会崩溃!
def worker():
result = read_modbus()
self.label.config(text=result) # 💥 Boom!
正确姿势:
python# ✅ 用root.after调度到主线程
def worker():
result = read_modbus()
self.root.after(0, self. label.config, {"text": result})
很多PLC文档里的地址是从1开始的(比如40001表示第一个保持寄存器),但pymodbus库的地址是从0开始。读取时要减1!
python# 文档说读40005寄存器
result = client.read_holding_registers(4, 1) # 注意是4不是5
读两个寄存器拼成32位浮点数时,要注意字节序:
pythonfrom struct import unpack
# 读取两个连续寄存器
regs = client.read_holding_registers(0, 2).registers
# 方式1:大端序(Big-Endian)
bytes_data = regs[0]. to_bytes(2, 'big') + regs[1].to_bytes(2, 'big')
float_val = unpack('>f', bytes_data)[0]
# 方式2:小端序(Little-Endian) - 西门子PLC常用
bytes_data = regs[1].to_bytes(2, 'little') + regs[0].to_bytes(2, 'little')
float_val = unpack('<f', bytes_data)[0]
建议:先用仿真软件(ModbusPoll、ModbusSlave)测试好再写代码。
集成SQLite存储历史数据:
pythonimport sqlite3
conn = sqlite3.connect('modbus_history.db')
cursor = conn.cursor()
cursor.execute('''
CREATE TABLE IF NOT EXISTS readings (
timestamp REAL,
device_id TEXT,
address INTEGER,
value INTEGER
)
''')
# 每次读取后插入
cursor.execute('INSERT INTO readings VALUES (?, ?, ?, ?)',
(time.time(), device_id, addr, value))
conn.commit()
用matplotlib嵌入Tkinter实现动态趋势图:
pythonfrom matplotlib. backends.backend_tkagg import FigureCanvasTkAgg
from matplotlib.figure import Figure
fig = Figure(figsize=(8, 4))
ax = fig.add_subplot(111)
canvas = FigureCanvasTkAgg(fig, master=root)
canvas.get_tk_widget().pack()
# 更新曲线
def update_chart(data):
ax.clear()
ax.plot(data['timestamps'], data['values'])
canvas.draw()
设置阈值触发邮件/钉钉通知:
pythondef check_alarm(value, threshold=100):
if value > threshold:
send_dingtalk_alert(f"设备超温!当前值:{value}")
连接池预热:程序启动时提前建立所有连接,而不是用时再连。首次响应速度能快3倍。
日志分级:把通信日志和业务日志分开存,出问题时方便排查。生产环境只记录ERROR和WARNING。
配置文件外置:把IP、端口、轮询地址都写到JSON配置文件,改参数不用动代码。
json{
"devices": [
{
"id": "PLC01",
"ip": "192.168.1.100",
"port": 502,
"poll_list": [[0, 10], [100, 5]]
}
],
"refresh_interval": 2
}
从最初的demo到能上生产线的工具,这中间的差距不是几行代码,而是对异常处理、性能优化、用户体验的全方位打磨。工业软件不像互联网应用,崩一次可能就是几十万的损失。
这套方案我在三个项目里用过,稳定运行超过一年。最长的一次连续跑了87天没重启(后来是因为要升级功能才停的)。
如果你正在做类似的项目,建议:
你的项目中遇到过哪些奇葩的PLC兼容性问题? 评论区聊聊,说不定能互相解决。
挑战题:如何在不修改现有代码的前提下,支持Modbus RTU(串口通信)?提示:可以考虑抽象出Protocol接口。
📌 标签推荐
#Python工业开发 #Modbus通信 #Tkinter实战 #工控编程 #设备监控
💾 完整代码已上传GitHub(文中代码经过简化,完整版包含配置管理、日志系统、数据库集成等功能)
觉得有帮助就点个在看吧!下期聊聊如何用Python实现工业相机图像采集,咱们不见不散~ 🚀
本文作者:技术老小子
本文链接:
版权声明:本博客所有文章除特别声明外,均采用 BY-NC-SA 许可协议。转载请注明出处!