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MWG error will appear if your position module is faulty or has a loose contact. If, after you tried to clean and still showing MWG error, then you have to replace the module. For comm lost, is this a fieldbus device or hart?

Auma works in hot and cold environment except if the pipe where you installed it vibrates too much. If it does, Auma has an option to install the electronics in a separate enclosure, away from vibrating medium. Engineers should assess the project before ordering.

Hard to understand your situation. What exactly is your issue now? Is this hardwired or fieldbus?

Then that should be seen in the diagnostics. Thanks for the update..

What I said here should still be valid...

you need to zero trim on a constant pressure with no flow...

I don't have an IDEC I/O module or any software for it. But looks to me that something is wrong in the configuration. Try to explore and you might find something that is not appropriate. Check for codes in the diagnostics appearing when running online.

Is the output of trisen sending standard 4-20mA to DCS? Did you try to check how much current (if mA) it is sending?

What was the previous port number that you were using? Also, check that port in the PC that you are using as it maybe connected to something else.

In every PLC, there should be a flash card programmed to upload the latest program when battery is exhausted and power is interrupted. So that when power is restored, you still have the program coming from the flash card. This is the main purpose of having a PLC or DCS. If there is no flash...

1. Have you tried connecting multimeter in series with the transmitter and compared the value in the HMI or ladder program? 2. Have you tried simulating the transmitter while the multimeter is connected? 3. Have you checked all your parameters that everything is configured as 4-20mA and not...

MWG module is the one giving the position. Is this module the one you replaced or something else?

Well, looks like some components have reached their work life and needed to be replaced (or fixed, if you know how to handle electronics) as you have said, working for 10 years already. I suggest try to replace damaged components if you still want to use it later. Some components die earlier...

Do you have a software to communicate with HIMA controller?

Hi! Has the MTL working for a long time already? Is it inside a panel with proper ventilation? What is the setup of your system?

What is the current frequency that the walkie talkie is set to?

When you connect H475 to your DVC valve, it will warn you that there is no dd for your specific device. But you can still use that H475 to communicate with the valve. Just continue. It will use a generic dd that is close to the instrument that you are trying to work on...

Hello George, You need to contact the Global Service Center of Emerson to get the correct descriptor for your H475. The phone number is on the Emerson website. They are the one who can help you. You just need to tell them the serial number of your device... Also, you can still use your H475 to...

Hi! Can you tell me more about your issue? What's the walkie talkie got to do with LAN? Do you mean walkie talkie interferes with the LAN or what?

Have you checked your command going to your Rotork if it was indeed 20mA at 100%? Or the feedback if it was 20mA at 100%? If your command and feedback are 20mA at 100%, there is something wrong with the Rotork. If otherwise, the output channel has an issue...