Siemens HydroRanger 200 Manual de usuario descargar pdf (Pagina 3)

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 Remote relay state control via communications

 Failsafe operation on measurement loss, including independent mA

output and relay operation configuration.

Digital Communications

The level controller shall:

 Store data related to the digitized echo profiles, distance calculation,

signal processing functions, process control functions, and system

configuration.

 Map stored data to Modbus type read/write and read only registers, as

defined by the level controller supplier.

 Provide access to stored data via:

 RS232 port with RJ-11 connector for use with SIMATIC PDM.

 RS-485 port with screw terminals for external connection to the RS-485

modem or any compatible RS-485 communications network.

 SmartLinx port for use with an interchangeable SmartLinx card for direct

connection to the corresponding industrial bus protocol.

User Interface

The level controller shall enable user access to read only and read/write enabled

data, using any of the following methods:

 Direct or scroll access to data stored in numerical parameters,

using the hand programmer and graphic LCD display.

 IBM PC compatible computer access to data and digital echo

profiles, using the SIMATIC PDM instrument configuration

package.

 HMI, SCADA, PLC, or DCS system access to data stored in

Modbus registers via digital communications.

Transducer Functions

Acoustic / Electrical Energy Conversion

The transducer shall employ a piezzo electric driver element to convert the

electrical excitation supplied by the level controller, to acoustic energy radiated

axially and perpendicular from the transducer face. The piezzo electric driver

shall also convert acoustic excitation to an electrical signal for processing by the

level controller.

Integral Temperature Sensor

The transducer shall also employ an internal temperature sensor that shall

provide a signal to the level controller representing the temperature measured at

the transducer face.

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Siemens HydroRanger 200 Manual de usuario Pagina 3