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What is the typical amount of FF data at the site?

2009-02-19View Original

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I would like to ask the experts: what is the typical amount of data for FF in practice? Thank you so much! ! ! ! ! ! ! !
Reply #22009-02-19
The FF fieldbus is divided into two levels of buses: H1 and H2. H1 uses a fieldbus physical layer that complies with the IEC 61158‑2 standard ; H2 uses high-speed Ethernet for its physical layer.   The main electrical characteristics of the physical layer of the H1 fieldbus are as follows: it employs bit-synchronized digital transmission ; The transmission baud rate is 31.25 kb/s ; Driving voltage 9–32VDC ; Signal current ±9mA ; Cable type shielded twisted pair ; The wiring topology can be linear, tree-shaped, star-shaped, or hierarchical ; Cable length is less than or equal to 1900m (without repeaters) ; The length of the branch cable is 30–120 m ; The number of hanging interface devices is 32 or less (when there are no repeaters) ; The number of available repeaters is 4 or less ; Applicable explosion protection methods include intrinsically safe explosion protection methods, etc. It can be calculated using the above data.

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