Section 5: Startup and meter configuration

Reference, Installation, and Operations Manual

June 2013

3-9000-743 Rev S

 

 

5.2Communications setup

The Daniel 3410 Series Gas Ultrasonic Flow Meter provides three standard RS-232/RS-485 serial communication ports (referred to respectively as Port A, Port B, and Port C) and an Ethernet port (Eth1). Port A and Port B are expected to be used for (general) communication with flow computers and RTUs. Port C (included on the Series 100 Plus Option Board) can be used for general communication (such as with a flow computer or RTU). The Series 100 Plus Option Board, if installed is capable of communicating with other devices via a 375 Field Communicator or AMS™ Suite.

The Ethernet port is expected to be used for diagnostic purposes. See Section 3.5 for hardware configuration of communications protocols. See Section 5.1 for software configuration of communications protocols.

Port A is the preferred port for connection to a flow computer or RTU. If two flow computers are to be connected to the meter, then Port B should be used to connect to the second flow computer. If a computer running the Daniel MeterLink program is to be connected to a meter the Ethernet port is the preferred port for the connection.

If the Ethernet connection is not feasible, then Daniel MeterLink should be connected to the meter using Port B in full duplex configuration.

Daniel MeterLink will not communicate with a Daniel 3410 Series Gas Ultrasonic Flow Meter over a half-duplex serial connection.

Both Ports A and B are individually hardware-selectable for RS-232/RS-485 Full Duplex/RS-485 Half Duplex operation. Port A supports RS-232 RTS/CTS handshaking with software- configurable RTS on and off delay times. When handshaking is enabled, Port A drives the RTS output low and expects the CTS input to be active low. Both Ports A and B support individually software-configurable transmit delay times.

Port C (provided by the Series 100 Plus Option Board) is individually hardware-selectable for RS-232/RS-485 Half Duplex operation. Port C supports a software-configurable transmit delay time.

Refer to Daniel P/N 3-9000-754HART® Field Device Specification Guide: Daniel Gas Ultrasonic Meters manual for Series 100 Plus Option Board details.

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Communications setup