ok then, if firmware update/nmc reboot does not correct the issue, you may want to check the nmc event logs to see if there are any specific snmp events.   ... View more

I would definitely recommend upgrading the firmware regardless then.  Do you know DCE is polling them via snmpV1 or snmpV3?  snmpV1 devices should be fine, but older nmc1 devices running 3.5.x have been known to have issues with snmpv3. ... View more

snmp walk from the DCE web client is only available in DCE 7.6 and above.  However you still use the device walk utility found here https://dcimsupport.ecostruxureit.com/hc/en-us/articles/360006388878-How-to-create-a-device-walk-file-for-Data-Center-Expert    this will also allow you to walk modbus devices.   out of curiosity, are they snmpv3 devices?  If so, are they APC devices?  If they are, I would recommend making sure they are running the latest firmware.  You may need to reboot the web interface for snmpv3 communication to come back ... View more

@GaborNovak you would also need to purchase an asset definition service https://helpcenter.ecostruxureit.com/hc/en-us/articles/360008128678-Asset-Definition-service-for-DDFs in order for the ddf to be created regardless if the monitoring device scales the value or if the value is scaled in the ddf. ... View more

I agree with Shaun and Steve that the ddf could do this type of scaling as long as it is linear.  However I don't think it's the best solution suited for it.    Instead you would use a type of IO gateway that reads the 4-20 ma sensor, scales it and converts it into modbus tcp.  Then all the ddf does is read the raw value.    I would recommend engaging the buildings team, but you should be able to use SmartX AS-P controller and IO modules to do this.  https://ecostruxure-building-help.se.com/bms/topics/show.castle?id=10758&locale=en-US&productversion=1.8 ... View more