在在工業(yè)場景中，經(jīng)常會使用到PLC進(jìn)行各種設(shè)備的數(shù)據(jù)采集和控制。本教程介紹使用海創(chuàng)-IIoT 可視化平臺配置s7-200 smart跑馬燈場景效果。

一、使用產(chǎn)品
海創(chuàng)Box智能采集網(wǎng)關(guān)
西門子PLC (ST20 S7-200)
帶自鎖急停開關(guān)
LED聲光報警器
LED電源指示燈




二、產(chǎn)品連接方式
連接海創(chuàng)Box智能采集網(wǎng)關(guān)


連接接跑燈器材


三、產(chǎn)品配置
西門子PLC (ST20 S7-200) 基礎(chǔ)配置 請參考《西門子PLC》
西門子PLC (ST20 S7-200) 跑馬燈控制設(shè)計
總開開啟時，接受平臺信號

總開開啟，響一聲；總開關(guān)閉復(fù)位，信號響兩聲


四、項目部署調(diào)試
在桌面中打開海創(chuàng)-IIoT可視化編輯工具，進(jìn)入可視化編輯器。本次教程需要用到如下節(jié)點，在左側(cè)節(jié)點欄中拖拽出使用

定時器 周期性觸發(fā)輸入時間戳或者相應(yīng)的字符



S7ctrl 用于寫入S7西門子通信協(xié)議的設(shè)備數(shù)據(jù)



function JavaScript函數(shù)塊,用于編寫燈控邏輯代碼



配置相應(yīng)節(jié)點后配置界面如下：



節(jié)點配置：
定時器 設(shè)置成周期性觸發(fā)，主要當(dāng)觸發(fā)流程使用，具體配置如下圖


S7ctrl 設(shè)置如下配置，配置PCL連接地址并定義PLC變量表




function 在右側(cè)調(diào)試窗口打開代碼編碼窗口，向PLC的M區(qū)寫入對應(yīng)的bool值從而控制對應(yīng)PLC輸出點的LED燈


部署調(diào)試：
按照以上教程配置好流程后，點擊部署，部署成功后程序開始運行，在實驗板上觀看到跑馬燈效果，本案例效果可根據(jù)實際應(yīng)用，比如與具電表或濕濕度儀配置，讀取其狀態(tài)數(shù)據(jù)，修改function代碼設(shè)定亮燈場景等。



五、示例
以上教程可以通過拷貝下面代碼實現(xiàn)快速復(fù)用，在新建的流程中點擊界面右側(cè) 菜單欄-導(dǎo)入-剪貼板，在文本框中粘貼下面代碼后點擊確定，即可快速復(fù)用


[
    {
        "id": "934346d0.9ab7c8",
        "type": "iot-s7ctrl",
        "z": "cbf428b2.2a3ac8",
        "name": "",
        "server": "b8104a0c.03ed08",
        "columns": [
            {
                "Key": "M0.0",
                "Label": "M0.0",
                "Address": "M0.0",
                "Ctrlvalue": "0",
                "ValueType": "bool"
            },
            {
                "Key": "M0.1",
                "Label": "M0.1",
                "Address": "M0.1",
                "Ctrlvalue": "yes",
                "ValueType": "bool"
            },
            {
                "Key": "M0.2",
                "Label": "M0.2",
                "Address": "M0.2",
                "Ctrlvalue": "0",
                "ValueType": "bool"
            },
            {
                "Key": "M0.3",
                "Label": "M0.3",
                "Address": "M0.3",
                "Ctrlvalue": "0",
                "ValueType": "bool"
            },
            {
                "Key": "M0.4",
                "Label": "M0.4",
                "Address": "M0.4",
                "Ctrlvalue": "0",
                "ValueType": "bool"
            },
            {
                "Key": "M0.5",
                "Label": "M0.5",
                "Address": "M0.5",
                "Ctrlvalue": "0",
                "ValueType": "bool"
            },
            {
                "Key": "MR2",
                "Label": "MR2",
                "Address": "MR2",
                "Ctrlvalue": "11.22",
                "ValueType": "numerical "
            },
            {
                "Key": "MD1",
                "Label": "MD1",
                "Address": "MD1",
                "Ctrlvalue": "444",
                "ValueType": "numerical "
            }
        ],
        "x": 655,
        "y": 340,
        "wires": [
            []
        ]
    },
    {
        "id": "b8104a0c.03ed08",
        "type": "iot-s7ctrl-client",
        "z": "",
        "name": "",
        "communicate": "TCP",
        "host": "192.168.7.163",
        "post": "102",
        "baudrate": "9600",
        "databits": "8",
        "stopbits": "1",
        "parity": "None",
        "expand": {},
        "connmode": "tsap",
        "rack": "0",
        "slot": "2",
        "localtsaphi": "10",
        "localtsaplo": "00",
        "remotetsaphi": "03",
        "remotetsaplo": "00",
        "verbose": "default"
    }
]

學(xué)習(xí)學(xué)習(xí)，