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ION 7330 Modbus

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Charles_Murison
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TonyDroogsma
TonyDroogsma Cadet | EcoXpert Master
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Posted: ‎2025-03-25 12:57 PM

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‎2025-03-25 12:57 PM

ION 7330 Modbus

I have a bunch of ION 7330 meters that I am talking modbus to. My issue is that for all of the meters but one they are on a 480/277/208/120 volt gear. There is one that is on the main coming into the site which is a 13,800 volts or so. The modbus registers are set up as 16 bit, which corresponds to a max voltage of 6553.5 volts. The meter is reading 14,000 volts so the modbus register is maxing out. I cant seem to figure out a way for it to read the correct data. All of the other registers that I have pulled in are working/reading correctly.

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Mehran_Mehrnia
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Posted: ‎2025-03-25 02:11 PM . Last Modified: ‎2025-03-25 02:23 PM

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‎2025-03-25 02:11 PM

Hi @TonyDroogsma 

 

Please note that ION7300 are obsolete and are no longer supported.

 

Please check the following link with similar topic in Metering & Power Quality forum:
ION 7350 reading Vll give 6553.6

 

As mentioned in that topic, you need to modify the related Modbus Slave Module in Advanced mode of ION Setup(hold control key and select the meter), -> Modbus Slave Modules -> Modbus Slave x and disable the Scale by setting the MSR1 Scaling to No from Yes or set the InFull and OutFull accordingly.

Mehran_Mehrnia_1-1742936962140.png

 

Best Regards,

-Mehran

L3 Expert Advanced metering

See Answer In Context

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Mehran_Mehrnia
Captain Mehran_Mehrnia Captain
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Posted: ‎2025-03-25 02:11 PM . Last Modified: ‎2025-03-25 02:23 PM

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‎2025-03-25 02:11 PM

Hi @TonyDroogsma 

 

Please note that ION7300 are obsolete and are no longer supported.

 

Please check the following link with similar topic in Metering & Power Quality forum:
ION 7350 reading Vll give 6553.6

 

As mentioned in that topic, you need to modify the related Modbus Slave Module in Advanced mode of ION Setup(hold control key and select the meter), -> Modbus Slave Modules -> Modbus Slave x and disable the Scale by setting the MSR1 Scaling to No from Yes or set the InFull and OutFull accordingly.

Mehran_Mehrnia_1-1742936962140.png

 

Best Regards,

-Mehran

L3 Expert Advanced metering

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Omid-koohpeyma
Omid-koohpeyma
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Posted: ‎2025-04-07 11:54 AM

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‎2025-04-07 11:54 AM

Dear Mehran,

good time,

We have an ION7330 meter, and we are trying to read voltage and current values over Modbus RTU. However, the data shown in the Modbus Poll program for registers 40011 to 40013 is -6, while our actual voltage (VL-L) is 33,000 V. Currently, we don’t have the special cable required to connect to the meter using the ION Setup program. Is there another way to adjust the scaling?

 

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Charles_Murison
Picard Charles_Murison Picard
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Posted: ‎2025-04-08 09:13 AM

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‎2025-04-08 09:13 AM

Hello @Omid-koohpeyma ,


The ION7300 series of meter supports advanced meter configuration through the front panel. Have a look at page 26 of the user guide regarding "Advanced Meter Setup Menu". Note that this process while possible is going to take many button presses and slow but the meter can be programmed through the front panel.

 

Regards,

Charles

L4 Prime for Advanced metering and Utilities
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