4/7 S330/S331 Display and Data Logger SUTO Modbus/RTU Sensor Input The S330 / S331 includes digital inputs for SUTO SDI sensors and Modbus/RTU sensors. To connect the Modbus/RTU sensors properly on an RS 485 bus system, it’s recommended to daisy-chain the sensors to one of the inputs. For this purpose, SUTO offers a RS 485 splitter to simplify the connection. Through this method, users can add up to 16 sensors to the master input, making it most versatile and allowing to monitor whole plants with a single data logger. (Additional power supplies for field devices might be necessary) 1 Third-Party Sensor and Field Device Support By relying on the industry standard protocol Modbus/RTU, the S330 / S331 does support third-party sensors to be easily integrated into the monitoring system. Field devices can be easily set up using the configuration software, allowing to add third-party sensor within seconds. Of course, all connected sensor data can be logged to the internal memory, used for virtual channel calculations and real-time values are forwarded to connected software and monitoring solutions. 3 Analog Sensor Input The S330 / S331 can be equipped with an analog input option, allowing to connect 0/4... 20 mA, 0...10 V and pulse signals from field sensors. If more analog sensors need to be connected, a Analog-Modbus/RTU converter module can be easily connected, allowing to connect additionally 8 analog sensors. This makes the S330 / S331 most versatile and offers the possibility to connect existing field hardware and sensors seamlessly into the monitoring system. 2 Up to 8 analog sensors 1 2 3 Signal Converter S010 S030 Analog to Modbus Analog Output S020 Analog Output Analog Output S331 Data Logger Modbus Master Input Connecting All Compressed Air Devices S331 S331 S331 S418 Data Logger Modbus Master Input Flow Meter with Modbus/RTU Dew Point Sensor with Modbus/RTU Compact Flow Meter with Modbus/RTU 1 2 16 RS-485 Splitter RS-485 Splitter RS-485 Splitter Third-Party With Modbus/RTU Third-Party Third-Party With Modbus/RTU With Modbus/RTU S331 Data Logger Modbus Master Input 1 2 16 RS-485 Splitter RS-485 Splitter RS-485 Splitter
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