关于485协议获取到设备状态二进制判断0和1的位置

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通过发送查询代码获取到设备（设备是8路DI输入）反馈的 16进制数据，转换位二进制后为，10000，从右到左依次数，第五位是1 ，代表第五个DI接口接收到信号。

msg.payload : string[5]
"10000"

清问NR中怎么判断第几路 接收到信号，然后反馈出来那些口有DI信号输入。 谢谢

这是关于8位二进制的每位是0或1的判断反馈。 新手，稿了很久，实在 没法，请大神帮忙。感激！

blindlight

都已经是string了 直接slice就行了

sea_dark

blindlight 发表于 2021-3-12 00:14
都已经是string了 直接slice就行了

太小白了。。。能否详细些，谢谢

hunterfox

我前面搞了一下。可以实现的，方法不是最高效。但能用！你改改试试

[{"id":"c453fd7d.5b866","type":"inject","z":"a54dc4ab.4344e8","name":"","topic":"","payload":"255","payloadType":"num","repeat":"","crontab":"","once":false,"onceDelay":0.1,"x":290,"y":2540,"wires":[["57eb04ad.95accc"]]},{"id":"57eb04ad.95accc","type":"function","z":"a54dc4ab.4344e8","name":"根据输入取位","func":"var temp =(msg.payload)+flow.get('ss');\nvar msg1={};\nvar msg2={};\nvar msg3={};\nvar msg4={};\nvar msg5={};\nvar msg6={};\nvar msg7={};\nvar msg8={};\nvar msg9={};\n\n\nvar temps=("00000000" + temp.toString(2)).slice(-8)\n\nvar a,b,c,d,e,f,g\na=temps.charAt(0);\nb=temps.charAt(1);\nc=temps.charAt(2);\nd=temps.charAt(3);\ne=temps.charAt(4);\nf=temps.charAt(5);\ng=temps.charAt(6);\nh=temps.charAt(7);\n\nmsg1.payload=a;\nmsg2.payload=b;\nmsg3.payload=c;\nmsg4.payload=d;\nmsg5.payload=e;\nmsg6.payload=f;\nmsg7.payload=g;\nmsg8.payload=h;\nmsg9.payload=temp;\nreturn [msg1,msg2,msg3,msg4,msg5,msg6,msg7,msg8,msg9]","outputs":9,"noerr":0,"x":480,"y":2540,"wires":[["b0a5b046.895b"],["5083a47.1c5175c"],["e6826ee7.0f4f3"],["31a98290.8499fe"],["90f0f6ac.cdbbb8"],["1c7dc580.5babab"],["9268028a.f4a2f"],["e5cf7c7f.531a4"],["cefb6522.e53498"]]},{"id":"b0a5b046.895b","type":"debug","z":"a54dc4ab.4344e8","name":"","active":true,"tosidebar":true,"console":false,"tostatus":true,"complete":"payload","targetType":"msg","x":690,"y":2440,"wires":[]},{"id":"e5cf7c7f.531a4","type":"debug","z":"a54dc4ab.4344e8","name":"","active":true,"tosidebar":true,"console":false,"tostatus":true,"complete":"payload","targetType":"msg","x":1070,"y":2720,"wires":[]},{"id":"c3d7f9df.f6a818","type":"debug","z":"a54dc4ab.4344e8","name":"","active":true,"tosidebar":true,"console":false,"tostatus":true,"complete":"payload","targetType":"msg","x":810,"y":2760,"wires":[]},{"id":"5083a47.1c5175c","type":"debug","z":"a54dc4ab.4344e8","name":"","active":true,"tosidebar":true,"console":false,"tostatus":true,"complete":"payload","targetType":"msg","x":730,"y":2480,"wires":[]},{"id":"90f0f6ac.cdbbb8","type":"debug","z":"a54dc4ab.4344e8","name":"","active":true,"tosidebar":true,"console":false,"tostatus":true,"complete":"payload","targetType":"msg","x":910,"y":2600,"wires":[]},{"id":"e6826ee7.0f4f3","type":"debug","z":"a54dc4ab.4344e8","name":"","active":true,"tosidebar":true,"console":false,"tostatus":true,"complete":"payload","targetType":"msg","x":790,"y":2520,"wires":[]},{"id":"31a98290.8499fe","type":"debug","z":"a54dc4ab.4344e8","name":"","active":true,"tosidebar":true,"console":false,"tostatus":true,"complete":"payload","targetType":"msg","x":850,"y":2560,"wires":[]},{"id":"9268028a.f4a2f","type":"debug","z":"a54dc4ab.4344e8","name":"","active":true,"tosidebar":true,"console":false,"tostatus":true,"complete":"payload","targetType":"msg","x":1030,"y":2680,"wires":[]},{"id":"1c7dc580.5babab","type":"debug","z":"a54dc4ab.4344e8","name":"","active":true,"tosidebar":true,"console":false,"tostatus":true,"complete":"payload","targetType":"msg","x":970,"y":2640,"wires":[]},{"id":"43dc979c.4e5228","type":"inject","z":"a54dc4ab.4344e8","name":"","topic":"","payload":"0","payloadType":"num","repeat":"","crontab":"","once":false,"onceDelay":0.1,"x":290,"y":2680,"wires":[["cefb6522.e53498"]]},{"id":"cefb6522.e53498","type":"change","z":"a54dc4ab.4344e8","name":"","rules":[{"t":"set","p":"ss","pt":"flow","to":"payload","tot":"msg"}],"action":"","property":"","from":"","to":"","reg":false,"x":450,"y":2660,"wires":[["c3d7f9df.f6a818"]]},{"id":"ee9056f1.814158","type":"comment","z":"a54dc4ab.4344e8","name":"通用状态数据获取-存入变量","info":"","x":300,"y":2420,"wires":[]}]

复制代码

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hunterfox 发表于 2021-3-12 10:48
我前面搞了一下。可以实现的，方法不是最高效。但能用！你改改试试

感谢您。 应该就是你发的这个！

但有个报错。导入不了


SyntaxError: JSON.parse: expected ',' or '}' after property value in object at line 1 column 493 of the JSON data

var temps=("00000000" +

hunterfox

sea_dark 发表于 2021-3-12 11:14
感谢您。 应该就是你发的这个！

但有个报错。导入不了

我给附件你吧 flows.json (3.52 KB, 下载次数: 28)

2021-3-12 11:28 上传

点击文件名下载附件

sea_dark

hunterfox 发表于 2021-3-12 11:28
我给附件你吧

搞定了。感谢你！