TRANSMITTERS AST 3P / AST 3IS Analogue output ±10 VDC, 0-20 or 4-20 mA. Digital output RS-485, MODBUS and via GATE 3 fieldbus communication. WST 3 Analogue output ± 10 VDC, 0–20 or 4–20 mA. Serial communications: RS-485, MODBUS RTU protocol. Fieldbus interface: Profibus DP.
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