Configuration of SITRANS TH300 in SIMATIC Manager

Description:

SITRANS TH 300 with HART protocol is designed to support all common thermocouples, resistance and milli-volt sensors

Setup is quick and easy with SIMATIC PDM

It works on DC voltage sources

Explanation:

In SITRANS TH300 there is various connections for the attach RTD and other devices

Main two connections is for positive and negative supply which passes 4-20mA current supply

We connect 250Ωresistor in series connection with the power supply

Its voltage picks up to 5V and it is connected with HART modem and we get signals in to controller with USB connection

There is 2-wire or 3-wire RTD sensor connected with the SITRANS TH300 which is used for temperature sensing element

Then connect the HART modem across the 250Ω resistor and USB port connect to the computer

With the help of SIMATIC Manager we measure the temperature of the device or other sensing elements with the use of SITRANS TH300

                                                                                                            

Schematic Diagram:

                                                                          

Configuration Steps:

Start SIMATIC manager

File > New project

View > Process device network view

Options > Set PG/PC interface > USB S785 B

Project > Insert new object > Network > Communication network > Assign device type > HART modem network

Comport interface > Communication

HART modem network > Insert object > Assign > Device identification

Right click on device > Open object > upload to PG/PC

Explosion proof transmissions can be installed and operated within potentially explosive atmosphere in compliance with the information given in the relevant certificates and approvals in operating instruction

The sensor activation and measuring range to be programmed

Intrinsically safe and non-sparking version for use in hazardous areas

Special characteristic curve given


                                                                                     

                                                                                               By Harsh Suthar

Configuration of SITRANS TH300 in SIMATIC Manager

Description:

SITRANS TH 300 with HART protocol is designed to support all common thermocouples, resistance and milli-volt sensors

Setup is quick and easy with SIMATIC PDM

It works on DC voltage sources

Configuration of SITRANS P300 in SIMATIC Manager

Description:

It is a pressure measuring Instrument which is generally use for Absolute pressure measurement.

It can measure with accuracy ≤ 0.075%

It can work within limit of 1.3 bar pressure.

Silicon oil is used in Fluid filling in case in use of food industry edible oil is used because silicon is hazardous to human health.

 

Explanation:

First of all the mounting of instrument is done as per requirement.

When the pressure is applied in the valve of the instrument pressure is applied on Diaphragm so that it bends and piezoelectric plate is mounted on it.

When the piezoelectric plate bends the resistance is decrease in it so that when electric signal transmit on it difference can be shown on display that is measured pressure.

The readings in different units can be found using this instrument.

We can connect the equipment to the computer using PC/PD coupler and CP5711 via Profibus PA and Profibus PD can be analyzed on Simatic PDM. 

Schematic Diagram:

                                                                           

Configuration Steps:

Connect SITRANS P 300 to PC via Profibus and PC\PD Coupler.

Set the parameters of SITRANS P 300 using Mode button

Open SIMATIC PDM

File > New Project

View > Process Device Network View

Options > Set PG\PC interface [Select CP5711 Profibus 1<active>]

Project > Insert new object > Networks

Networks> Insert new object > Communication network > assign device type <Profibus network>

In profibus network Give the address of instrument i.e. 1-126 any number and assign instrument SITRANS P300

Open device > Open Project <upload \download to PG\PC>

Observe the result in process variable.

Conclusion:

Proper Commissioning of Device leads to accurate pressure measurement.

Position and Place of mounting is should be proper to get accurate output.

For Safety of the plant and workers this instrument is necessary.

We can conclude that by using this instrument we can maintain the pressure by setting higher and lower limit in equipment such as boiler, pressure vessel etc. and proper safety measures can be achieved.

                         
                                                                                                                 By Kartik Pandav