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德國(guó)倍加福接近開關(guān)，P+F帶安全功能的接近開關(guān)
每個(gè)H系統(tǒng)的HART多路轉(zhuǎn)換器（HID MUX 2700）可
以和32個(gè)HART設(shè)備通訊，那么個(gè)RS485接口下面可
帶31個(gè)H系列的HART多路轉(zhuǎn)換器，可以掛接多達(dá)992個(gè)現(xiàn)場(chǎng)設(shè)備。
HART 接口解決方案由適用于多信號(hào)回路的HART 多路
HART field device input (revision 5 to 7)
Signal range 0.12 Vpp < signal < 1.5 Vpp
Leakage current < 3 µA at -20 ... 85 °C (-4 ... 185 °F)
Terminating resistor external 230 ... 500 Ω standard (up to 1000 Ω possible)
輸出電壓 ≥ 400 mV ss (with the terminator resistance specified above)
輸出阻抗 100 Ω or smaller, capacitive coupling
DC isolation dual capacitor each channel
Common mode voltage up to 30 V
¿¿¿¿ > 5 kΩ , according to HART specification
德國(guó)倍加福接近開關(guān)，P+F帶安全功能的接近開關(guān)
轉(zhuǎn)換器和適用于單回路的HART回路轉(zhuǎn)換器組成。
HART多路轉(zhuǎn)換器將現(xiàn)場(chǎng)HART設(shè)備和資產(chǎn)管理系統(tǒng)
（例如AMS系統(tǒng)：艾默生公司的智能設(shè)備管理軟件）連接。
HART 接口解決方案工作原理是象個(gè)網(wǎng)關(guān)設(shè)備，
Common mode voltage max. 30 V
Differential mode clamping ± 5.2 V , for transient or AC signals
Common mode clamping ± 10 V , for transient or AC signals
Carrier detect level signal > 0.12 Vpp, carrier detection activated
signal < 0.08 Vpp, carrier detection not activated
Transmit amplitude 200 Ω load, 0.43 Vpp < signal < 0.49 Vpp
500 Ω load, 1.1 Vpp < signal < 1.2 Vpp
設(shè)備類型 DC isolated bus device
Data link type HART primary and secondary
Field multi point support option available upon request
傳輸速率 9600 MBit/s, 19200 MB
it/s or 38400 MBit/s, selectable via switch
地址 1 ... 31 , adjustable via DIP switch
類型 RS 485, differential pair and grounding
Topology multi point, master/slave connection