Dikonfigurasikan untuk komunikasi ControlNet berlebihan dalam pemasangan I/O teragih FLEX XT, Allen‑Bradley 1794‑ACNR15XT (modul penyesuai 1794‑ACNR15XT) menyediakan pelaksanaan fizikal langsung bagi isyarat rangkaian sepaksi, pengalamatan nod dan pengagihan kuasa FlexBus merentasi platform ControlNet V1.5.
Spesifikasi Perkakasan
Parameter
Spesifikasi
Model
1794‑ACNR15XT
Jenama
Allen‑Bradley
Asal
Amerika Syarikat
Berat
0.2 kg
Dimensi
9.7 cm × 8.9 cm × 7.1 cm (3.8 in × 3.5 in × 2.8 in)
Suhu Operasi
-25 darjah C hingga 70 darjah C
Suhu Penyimpanan
-40 darjah C hingga 85 darjah C
Penggunaan Kuasa
3.4 W hingga 7.3 W
Voltan Input
24 VDC nominal
Julat Voltan
19.2 VDC hingga 31.2 VDC
Penggunaan Arus
Maks. 400 mA @ 24 VDC
Output FlexBus
Maks. 640 mA @ 5 VDC
Voltan Penebatan
50 V berterusan (penebat asas)
Protokol
ControlNet V1.5
Kadar Data
5 Mbps
Saluran Rangkaian
BNC dwi (A/B)
Pengalamatan Nod
Suis berputar, 01–99
Kapasiti Modul
Sehingga 8 modul FLEX I/O
Penarafan Kepungan
IP20, gaya terbuka
Pemasangan
Rel DIN 35 mm atau pemasangan panel
Pertimbangan Rangkaian Tentu Profinet / EtherNet/IP
Walaupun 1794‑ACNR15XT dikhususkan untuk ControlNet, tingkah laku media berjadual tetapnya pada 5 Mbps selaras dengan keperluan pemasaan tentu yang terdapat dalam sistem EtherNet/IP dan Profinet. Redundansi dwi saluran mengurangkan jitter dan kelewatan penyegerakan semula semasa kerosakan media, manakala penskalaan ketumpatan I/O FlexBus memastikan selang kemas kini yang boleh diramal merentasi seni bina berbilang protokol. Keserasian flash perisian tegar dalam pemasangan FLEX XT mengekalkan operasi yang stabil dalam keadaan suhu lanjutan.
Soalan Lazim
S: Bolehkah 1794‑ACNR15XT ditukar semasa beroperasi dalam pemasangan FLEX XT yang berkuasa? J: Ya. FLEX XT menyokong pemasukan dan pengeluaran modul semasa berkuasa, walaupun keadaan pautan ControlNet mungkin diwujudkan semula buat sementara waktu.
S: Adakah redundansi dwi saluran memerlukan kedua-dua penyambung BNC disambungkan? J: Ya. Operasi berlebihan bergantung pada kesalinghubungan lengkap Saluran A dan Saluran B.
S: Adakah pengalamatan nod memerlukan kitaran kuasa? J: Ya. Perubahan suis berputar hanya berkuat kuasa selepas modul dimatikan dan dihidupkan semula.
Garis Panduan Pemasangan Lapangan
Kekalkan tork yang betul pada penyambung BNC untuk mengekalkan impedans 75 ohm.
Halakan kabel sepaksi jauh daripada konduktor ber tenaga tinggi untuk mengurangkan hingar teraruh.
Sahkan pemasangan yang betul pada tapak terminal FLEX XT sebelum menghidupkan kuasa.
Elakkan lenturan tajam pada kabel sepaksi untuk mengekalkan integriti isyarat.
Pastikan keadaan persekitaran memenuhi keperluan salutan XT untuk ketahanan terhadap kelembapan dan kakisan.
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