在在工業(yè)場(chǎng)景中,經(jīng)常會(huì )使用到PLC進(jìn)行各種設備的數據采集和控制。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(chǎng)景效果。
一、使用產(chǎn)品
海創(chuàng )Box智能采集網(wǎng)關(guān)
西門(mén)子PLC (ST20 S7-200)
帶自鎖急停開(kāi)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(mén)子PLC (ST20 S7-200) 基礎配置 請參考《西門(mén)子PLC》
西門(mén)子PLC (ST20 S7-200) 跑馬燈控制設計
總開(kāi)開(kāi)啟時(shí),接受平臺信號

總開(kāi)開(kāi)啟,響一聲;總開(kāi)關(guān)閉復位,信號響兩聲

四、項目部署調試
在桌面中打開(kāi)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點(diǎn),在左側節點(diǎn)欄中拖拽出使用
定時(shí)器 周期性觸發(fā)輸入時(shí)間戳或者相應的字符

S7ctrl 用于寫(xiě)入S7西門(mén)子通信協(xié)議的設備數據

function JavaScript函數塊,用于編寫(xiě)燈控邏輯代碼

配置相應節點(diǎn)后配置界面如下:

節點(diǎn)配置:
定時(shí)器 設置成周期性觸發(fā),主要當觸發(fā)流程使用,具體配置如下圖

S7ctrl 設置如下配置,配置PCL連接地址并定義PLC變量表


function 在右側調試窗口打開(kāi)代碼編碼窗口,向PLC的M區寫(xiě)入對應的bool值從而控制對應PLC輸出點(diǎn)的LED燈

部署調試:
按照以上教程配置好流程后,點(diǎn)擊部署,部署成功后程序開(kāi)始運行,在實(shí)驗板上觀(guān)看到跑馬燈效果,本案例效果可根據實(shí)際應用,比如與具電表或濕濕度儀配置,讀取其狀態(tài)數據,修改function代碼設定亮燈場(chǎng)景等。

五、示例
以上教程可以通過(guò)拷貝下面代碼實(shí)現快速復用,在新建的流程中點(diǎn)擊界面右側 菜單欄-導入-剪貼板,在文本框中粘貼下面代碼后點(diǎn)擊確定,即可快速復用
[
{
"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"
}
]