本文所描述的是一个modbus读从站的数值实时更新到主窗体中，在主窗体中实时检测子窗体反馈回来的数据当它为false的时候添加报警输出
在主窗体中
//公开一个静态的字典用来接收数值
public static Dictionary<string, bool> StatusDictionary { get; set; }public void UpdateStatusDictionary(Dictionary<string, bool> updatedDictionary)
{StatusDictionary = updatedDictionary;bool dictionaryUpdated = false;int alarmId = 10708;foreach (KeyValuePair<string, bool> pair in StatusDictionary){//进行字典值判断为false就打印报警if (!pair.Value){string key = pair.Key;instance.frmMessage.SetAlarm(alarmId++, key);}// Check if dictionary has been updatedif (!dictionaryUpdated && !pair.Value != updatedDictionary[pair.Key]){dictionaryUpdated = true;}}if (dictionaryUpdated){foreach (KeyValuePair<string, bool> pair in updatedDictionary){if (!pair.Value){string key = pair.Key;instance.frmMessage.SetAlarm(alarmId++, key);}}}
}下面是子窗体的代码实例
private void checkBox4_CheckedChanged_1(object sender, EventArgs e)
{if (this.checkBox4.Checked && ckModbusPortOpen.Checked){timer1.Start();}if(!checkBox4.Checked){timer1.Stop();}
}
//主窗体的名称
MainFrm childFrmRun = new MainFrm();
private void ModBus7000NMsg()
{try{bool[] data = master.ReadInputs(1, 1, 2);// 读取机组打胶、机组不能工作状态bool 机组打胶中 = (data[0]);bool 机组不能工作 = (data[1]);bool[] data1 = master.ReadInputs(1, 8, 7);bool 阀体状态 = data1[0];bool 胶筒预热中 = (data1[1]);bool 喷嘴预热中 = (data1[2]);bool 撞针已达保养次数 = (data1[3]);bool 喷嘴已达保养次数 = (data1[4]);bool 陶瓷已达保养次数 = (data1[5]);bool 自动排胶中 = (data1[6]);bool[] data2 = master.ReadInputs(1, 16, 6);bool 系统故障01 = data2[0];bool 散热器温度过高 = (data2[1]);bool 散热器温度传感器故障 = (data2[2]);bool 系统故障02 = (data2[3]);bool 系统故障03 = (data2[4]);bool 阀体存储故障 = (data2[5]);bool[] data3 = master.ReadInputs(1, 23, 5);bool 主板存储故障 = data3[0];bool 胶筒温度传感器故障 = (data3[1]);bool 胶筒电加热故障 = (data3[2]);bool 喷嘴温度传感器故障 = (data3[3]);bool 喷嘴电加热故障 = (data3[4]);// 使用 Dictionary 存储布尔值及其对应的名称statusDictionary = new Dictionary<string, bool>(){{"机组打胶中", 机组打胶中},{"机组不能工作", 机组不能工作},{"阀体状态", 阀体状态},{"胶筒预热中", 胶筒预热中},{"喷嘴预热中", 喷嘴预热中},{"撞针已达保养次数", 撞针已达保养次数},{"喷嘴已达保养次数", 喷嘴已达保养次数},{"陶瓷已达保养次数", 陶瓷已达保养次数},{"自动排胶中", 自动排胶中},{"系统故障01", 系统故障01},{"散热器温度过高", 散热器温度过高},{"散热器温度传感器故障", 散热器温度传感器故障},{"系统故障02", 系统故障02},{"系统故障03", 系统故障03},{"阀体存储故障", 阀体存储故障},{"主板存储故障", 主板存储故障},{"胶筒温度传感器故障", 胶筒温度传感器故障},{"胶筒电加热故障", 胶筒电加热故障},{"喷嘴温度传感器故障", 喷嘴温度传感器故障},{"喷嘴电加热故障", 喷嘴电加热故障}};//childFrmRun.UpdateStatusDictionary(statusDictionary);// 使用 BeginInvoke 在主线程中更新UIBeginInvoke(new Action(() =>{// 读取数组中的数据foreach (var pair in statusDictionary){// 将名称和对应的布尔值输出到 textBox3this.textBox3.AppendText($"{pair.Key}: {pair.Value}" + Environment.NewLine);}StatusDict.OpenPort = true;}));}catch (Exception ex){MessageBox.Show("读取失败：" + ex.Message);return;}}private async void timer1_Tick(object sender, EventArgs e){try{await Task.Run(() =>{ModBus7000NMsg();if(ChildFrmRun.StatusDictionary == null){childFrmRun.UpdateStatusDictionary(statusDictionary);}if (ChildFrmRun.StatusDictionary.SequenceEqual(statusDictionary)){return;}else{ModBus7000NMsg();childFrmRun.UpdateStatusDictionary(statusDictionary);}});}catch (Exception ex){MessageBox.Show("错误信息："+ex.Message);return;}}子窗体通过timer事件重复读取从站中传递过来的值
