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7647 Datasheet(PDF) 8 Page - PHOENIX CONTACT |
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7647 Datasheet(HTML) 8 Page - PHOENIX CONTACT |
8 / 28 page ![]() IB IL SGI 2/P-PAC 7647_en_04 PHOENIX CONTACT 8 6 Internal circuit diagram Figure 1 Internal wiring of the terminal points Key: Supervisor µC SRE 1 SRE 1 OPC Level Adaptation 3V/5V Level Adaptation 3V/5V 24 V 24 V +5V +5V Local bus +24 V (US) +24 V (UM) U L+ U ANA U L– GND UV GND UV GND TxD GND UV +UV1 +UV2 +U01 +U02 –U01 –U02 +Ud1 Ka1 Tx+ Ka2 Kb1 Tx– Kb2 +Ud2 –Ud1 –Ud2 Protocol chip Register expansion Level adaptation Hardware monitoring Microprocessor Optocoupler with bipolar buffer Analog/digital converter OPC SRE 1 Level Adaptation 3V/5V Supervisor µC Low pass filter DC/DC converter DC/DC converter with electrical isolation RS-485 interface with electrical isolation Photomos relay Electrically isolated area Explanation for other used symbols has been provided in the IL SYS INST UM E user manu- al. XXX XXX XXX XXX |
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