How can I ensure that I see the desired meter values in the back office?
Overview
Alfen charging stations can send many different meter readings.
With the configuration parameter 'MeterValuesSampledData' you can set which meter values are transmitted by the charging station to a back office.
By default, this configuration is set to 'Energy.Active.Import.Register'. With this configuration, the meter value for the imported kWh of the kWh meter is transmitted to the back office.
With the configuration parameter 'MeterValuesSampledData' you can set which meter values are transmitted by the charging station to a back office.
By default, this configuration is set to 'Energy.Active.Import.Register'. With this configuration, the meter value for the imported kWh of the kWh meter is transmitted to the back office.
It is possible to send several (up to a maximum of 9) meter values. The supported values are:
- Energy.Active.Import.Register
- Power.Active.Import, Current.Import
- Voltage
- Temperature
- Current.Offered
- Frequency
- Power.Factor
Some of these values can be communicated per phase (or between phases in the case of voltage).
See the list of current configuration parameters on 'Firmware releases ACE' for all possibilities.
For exact information on what the different values mean, you can download the OCPP specification from https://www.openchargealliance.org/
Changing the configuration for transmitting meter values can be done in 2 ways:
On site via the ACE Service Installer:
- Go to tab 'Connectivity'.
- Check the 'Advanced Settings' in the upper right corner.
- In the left menu, select 'Meter value'.
- Click on 'Meter Value Sampled Data'.
- Select which meter values you wish to forward to the back office using each drop-down box.
Remotely via a back office:
Change the MeterValuesSampledData parameter to the desired value.
Pay close attention to the following:
Measured values are combined with the phase (separated by a point ".").
Voltage meter values support the phase configuration:
L1-N, L2-N, L3-N, L1-L2, L2-L3, L3-L1
Example of a value: Voltage.L1-N
Note that some meter-brands do not support L1-L2, L2-L3 and L3-L1. These will then report 'n/a'.
L1-N, L2-N, L3-N, L1-L2, L2-L3, L3-L1
Example of a value: Voltage.L1-N
Note that some meter-brands do not support L1-L2, L2-L3 and L3-L1. These will then report 'n/a'.
The values of the current, power and power factor support the phase configuration:
L1, L2, L3
Example of a value: 'Current.Import.L1'.
When the 'SmartChargingMode' (OCPP 1.5+) is used, the following meter values apply:
Current.L1 ; Current.L2 ; Current.L3
L1, L2, L3
Example of a value: 'Current.Import.L1'.
When the 'SmartChargingMode' (OCPP 1.5+) is used, the following meter values apply:
Current.L1 ; Current.L2 ; Current.L3