PAS600L M172

[igor_climate_co]

Good day!

I can`t read Float32 from PAS600L - M172 does not display correctly variables. Display only ###### when M172 connected to serial line PAS600L. Without connected display 0.00.

Section	Address (hexa)	Register (dec)	N°	RW	Unit	Type	Invalid Value	Function Code	Description
Current Metering Data	0x0BB7	3000	2	R	A	Float32	0xFFC00000	3, 100-4	RMS current on phase A

Other type registers reading correctly (RS485 thermostate for example). By using USB - RS485 converter reading Ok.

Who knows how to read registers PAS600L correctly? 

Many thanks.

[Bastian_Schmitz]

That the PASL also support Modbus RTU Server is new for me. But good to know.

If you get trouble on reading float values the problem could be the word order, the byte order  or the start address. Normally it should work. How do you read the values via TM172? Did you use configuration? You could try the modbus custom editor, this is in my opinion the easiest way in your case.

[igor_climate_co]

Thank you. 

About PASL server:

https://www.productinfo.schneider-electric.com/ecostruxurepanelserverguide/doca0172-ecostruxure-pane...

I tried a lot of combination modbus register types and +-addresses in ME but no result. Usialy used configuration. 

I`m looking  for mistake.

[Bastian_Schmitz]

Did you check sysMbmModbusRTUnodestatus target variable? Please check the response of the PAS. This could be helpfull to identifie the problem.

[igor_climate_co · Accepted solution]

Thank you. The problem was solved. It is need to read 2 registers for current and 2 registers for voltage. Status variables must be: Installer type=Word, IEC type=Real. Then variables are interpreted via block Word2ToIEEE754.