Search results

The Experion type A I/O is the IO cards that fit into the C200 chassis. The HPM IO is the larger TDC HPM IO that TDC 3000 systems use. See the following Experion IO reference: https://www.honeywellprocess.com/library/marketing/notes/Exp_I-O_PIN.pdf C200 will have a Controlnet or ethernet...

What type are your I/O cards; Type A or HPM? or a mix? We found that temperature changes during the day would cause IOLIM faults as would any movement of the SM fibre. So anything that affected the optical signal in the cable was a problem. What make and model mm/SM FOC are you using?

Once your DCS has switched to the backup rack it should not switch back automatically. A manual error clear and restart of the failed rack should be required and then a manual switchover. What is your Experion I/O setup? Type of I/O? I/O interface? Remote I/O? Fibre optic type and converters...

We had a hot spare system for the DCS consisting of; -server -workstation -network -DCS primary and backup racks -I/O racks and cards -I/O networks We therefore had running known good spare cards and a place to test cards. We could install new cards, ensure that they booted up, passed...

Proximity switches seem to becoming the standard for valve position. They are well sealed from the weather and are vibration resistant.

Google is amazing. I found the following while searching for Bailey function codes. What Bailey DCS do you have? List of function codes; http://solutionsbank.abb.com/SBankData/S/LOC/Advant/SymphonyHarmony/ElectronicDocumentationCDVersi/MANUALS/455517G752266/composer/i_symfc/summpage.pdf...

>For boiler 3 element control using Allen Bradly control >logix PLC. How we can achieve bumpless control when we shift >from three element to single element in boiler 3 element >control logic? You can use the Maximum and minimum output limits or max and min CV values to make a non-active...

Not via ModBus. Triconex uses their own protocol for SOE, the system polling SOE events has to be able to use their SOE config files that contain tag and description info. There are OPC drivers for Triconex SOE that will work. We have used the Matricon OPC server for Triconex. Be warned...

You would never use a SIL rated safety system like the Mark VIe as a typical DCS. It is too expensive and complicated for general control. We used a Fisher PROVOX DCS, since upgraded to Honeywell Experion, for regulatory control, monitoring and discrete control and Triconex Tricon TMR SIS...

Are both fiber optic runs the same? 10 m and 1 mile both multi-mode or both single mode? Do your FO drivers match the installed fiber? Multi-mode still seems to be the default automation choice. I would be surprised if the same single mode FO drivers worked with 10m and 1 mile runs. I...

The Modbus address for AO or holding registers is 03.

The advantages of 3 element cascade level control: -feedwater flow loop compensates for variation in BFW flow and supply pressure -feedwater flow loop means that level control loop can be tuned for drum level control and does not have to be as fast acting with the flow loop taking care of...

No just PID but the min flow loop needs enough gain to get the recirc valve open within the time delay on the min flow pump trip when there is a big flow decrease, i.e. boiler trip. Valve tuning or characterization may also be required to get the recir valve open quickly enough. Smart...

A majority of the 3D printers use Ardunio uPU boards, but they also use a stepper motor driver shield to supply the higher voltage and currents required. How are you connecting the stepper motor? And what is it's size, voltage and current rating?

>kindly explain sil 3 system requirements.... For a SIS (Safety Instrumented System) to meet a specified SIL level requires that all parts of the system meet that reliability level. Therefore your field instruments (inputs) and valves (final elements) must have the same level of reliability...

Do you have a physical controller installed and configured? If not, you can only save to project. The simulation environment requires a separate PC for installation and running of the simulation environment...

The device has to be explosion proof because of it's power requirements. But the sensor and signal wiring(?) can be IS. I have seen this with a 4 wire ultrasonic flowmeter, where the power wiring and transmitter enclosure were explosion proof but the signal output with a barrier was IS.

The power will have to cabled to the gas detector as explosion proof. Unless the manual says something about it being loop powered. Confirm in the manual that the detector has a barrier for the sensor or that it must be explosion proof wiring. Maybe only the detector outputs are IS.

Since you have an Experion system, go to their web site and register for access, they have all the manuals and docs available on line and as pdf downloads: https://www.honeywellprocess.com/en-US/pages/default.aspx or...

The Experion PID parameters are tunable online and can be uploaded to Project to save them. I would start with the standard PID block and equation B (proportional and integral on error and derivative on changes in PV). Gain options are linear, gap, non-linear or external. Linear gain is the...