Yokogawa ACM12, yang turut disenaraikan sebagai modul komunikasi ACM12, menyediakan ketersambungan bersiri untuk integrasi subsistem dalam seni bina kawalan Yokogawa. Modul ini menyokong antara muka RS‑422 dan RS‑485, membolehkan komunikasi titik ke titik atau berbilang titik dengan sehingga 31 peranti luaran.
Spesifikasi
Parameter
Spesifikasi
Model
ACM12
Jenama
Yokogawa
Asal
Jepun
Berat
~0.3 kg
Dimensi
Faktor bentuk sarang I/O Yokogawa standard
Suhu Operasi
Tidak dinyatakan
Penggunaan Kuasa
1.0 A pada 5.0 V DC
Port Antara Muka
1 port (RS‑422 atau RS‑485 boleh dipilih)
Kelajuan Komunikasi
1200, 2400, 4800, 9600 atau 19200 bps
Mod Penghantaran
Separuh dupleks, penyegerakan mula-henti
Jarak Maksimum
1200 m (jumlah panjang kabel)
Jenis Sambungan
Titik ke titik atau berbilang titik (sehingga 31 peranti dalam mod RS‑485)
Integrasi Sistem
Dipasang terus pada unit sarang/nod Yokogawa
Penerangan Fungsi
Modul ACM12 membolehkan komunikasi bersiri yang deterministik untuk subsistem Yokogawa. RS‑422 menyediakan ketersambungan titik ke titik yang stabil, manakala RS‑485 menyokong rangkaian berbilang titik dengan sehingga 31 peranti. Kadar baud yang boleh dikonfigurasi (1200–19200 bps) membolehkan integrasi fleksibel dengan peralatan lama dan moden. Penyegerakan separuh dupleks memastikan pertukaran data yang boleh dipercayai melalui laluan kabel panjang sehingga 1200 meter.
Soalan Lazim
S: Bolehkah ACM12 beroperasi dalam kedua-dua mod RS‑422 dan RS‑485? J: Ya. Port ini boleh dipilih antara RS‑422 (titik ke titik) dan RS‑485 (berbilang titik).
S: Berapakah panjang kabel maksimum yang disokong? J: Sehingga 1200 meter jumlah panjang kabel.
S: Berapa banyak peranti luaran yang boleh disambungkan dalam mod RS‑485? J: Sehingga 31 peranti boleh disambungkan dalam konfigurasi berbilang titik.
Garis Panduan Pemasangan Lapangan
Pastikan kekutuban dan pendawaian yang betul untuk sambungan RS‑422/RS‑485.
Kekalkan kesinambungan perisai untuk mengurangkan gangguan elektromagnet.
Elakkan penghalaan talian bersiri berhampiran konduktor arus tinggi.
Periksa pemasangan modul pada sarang Yokogawa sebelum membekalkan tenaga.
Sahkan tetapan kadar baud sepadan dengan peranti yang disambungkan.
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