GF Alat pengukur aliran

2016-12-02View Original

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Saya ingin bertanya kepada pakar, apakah isyarat yang dihantar antara papan paparan dan jam tersebut?

Reply #22016-12-03

Biasanya, 4-20mA adalah nilai yang paling biasa digunakan

Reply #32016-12-03

Isyarat yang dihantar dari panel paparan ke PLC ialah isyarat arus. Isyarat yang dihantar dari meter ke panel paparan pula sepatutnya bukan isyarat arus

Reply #42016-12-03

Ada pelbagai jenis isyarat, termasuk voltan, arus, dan rintangan

Reply #52016-12-04

Secara umumnya, ia bukan isyarat arus elektrik. Kebanyakan yang saya temui ialah jenis 232. Ada juga yang menggunakan 485.

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GF Alat pengukur aliran

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