Modul Antarmuka Redundan ControlNet Allen‑Bradley 1756‑CN2RXT
Dikonfigurasi untuk komunikasi ControlNet redundan pada platform ControlLogix XT, Allen‑Bradley 1756‑CN2RXT (modul antarmuka 1756‑CN2RXT) menyediakan eksekusi fisik langsung pensinyalan jaringan koaksial, redundansi dua kanal, dan pertukaran data deterministik di seluruh segmen ControlNet.
Spesifikasi Perangkat Keras
Parameter
Spesifikasi
Model
1756‑CN2RXT
Merek
Allen‑Bradley
Asal
AS
Berat
0.25kg
Dimensi
Modul ControlLogix standar satu slot
Suhu Pengoperasian
-25 derajat C hingga +70 derajat C
Suhu Penyimpanan
-40 derajat C hingga +85 derajat C
Konsumsi Daya
6,6 W
Arus Backplane (5,1 VDC)
1,3 A
Arus Backplane (24 VDC)
3 mA
Protokol Komunikasi
ControlNet
Laju Data
5 Mbps
Node Maks.
99
Koneksi Logix
Total 131 (128 standar + 3 redundan)
Lapisan Lingkungan
Lapisan konformal (XT)
Kelembapan
5% hingga 95%, tanpa kondensasi
Rumah
Tipe terbuka
Antarmuka
2 port BNC (Kanal A/B), 1 port USB
Persyaratan Slot
1 slot ControlLogix
Pertimbangan Jaringan Deterministik Profinet / EtherNet/IP
Meskipun 1756‑CN2RXT didedikasikan untuk ControlNet, arsitektur dua kanal redundannya mendukung perilaku deterministik yang serupa dengan sistem EtherNet/IP dan Profinet. Pensinyalan koaksial tetap 5 Mbps dan frame yang divalidasi CRC pada modul mengurangi jitter serta penyimpangan pewaktuan saat beroperasi bersama I/O berdensitas tinggi atau jaringan dengan protokol campuran. Kompatibilitas flash firmware di seluruh sasis ControlLogix XT memastikan sinkronisasi yang stabil selama peristiwa pengalihan redundansi.
Pertanyaan yang Sering Diajukan
T: Dapatkah 1756‑CN2RXT diganti saat sistem aktif dalam sasis ControlLogix yang menyala? J: Ya. ControlLogix mendukung pemasangan/pelepasan modul saat bertegangan, tetapi perilaku jaringan dapat sesaat membangun kembali status tautan.
T: Apakah redundansi memerlukan kedua kanal ControlNet untuk dihubungkan? J: Ya. Kanal A dan Kanal B harus terhubung sepenuhnya agar pengoperasian redundan 2 kanal berjalan dengan baik.
T: Apakah port USB memengaruhi pewaktuan ControlNet? J: Tidak. Antarmuka USB hanya digunakan untuk konfigurasi dan tidak berpartisipasi dalam penjadwalan jaringan.
Pedoman Instalasi Lapangan
Pertahankan torsi yang benar pada konektor BNC untuk memastikan impedansi 75 ohm yang stabil.
Arahkan kabel koaksial menjauh dari konduktor berenergi tinggi untuk mengurangi derau induksi.
Verifikasi pemasangan yang tepat pada backplane ControlLogix sebelum diberi energi.
Pastikan modul XT berlapis konformal dipasang di lingkungan yang memerlukan ketahanan terhadap kelembapan atau korosi.
Hindari tekukan tajam pada kabel koaksial untuk menjaga integritas sinyal.
Topbrands collaborates with over 50 countries worldwide. As a leading supplier in China, we can provide significant discounts to customers based on market demand.
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We offer a standard one-year warranty for all new and original items.
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We offer a standard one-year warranty for all new and original items.
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Topbrands PLC Limited is a top supplier of genuine new PLC and DCS parts, serving over 50 countries globally. We offer high-quality products from renowned brands like Bently Nevada, Honeywell, ABB, and more. With our warehouse in China stocking up to 30,000 pieces, we ensure rapid delivery to meet urgent order needs while maintaining competitive pricing to save our customers' budgets. Learn more...