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To run RDC Charger application it is required:

  • to establish connection between charger and router by UTP cable
  • to connect charger to the power supply
  • download and install latest version of application for RDC Charger *

:!: Once RDC Charger is configured, it does not require further connection to internet or configurator for normal operation !

*Latest version of RDC Charger (EVSE) can be found under Downloads map.


  • run rdc_charger .exe file from Downloads
  • select default or desired folder

  • select charger serial number (SN), visible on sticker *
  • run install

*if does not appear a window with SN or it is not listed it means that application at this moment did not recognize charger. Continue with installation and select SN on application later.

Installation is successful!

EVSE overview

:!: Parameters in blue colour are editable.

1. EVSE Name
Name of EVSE - default is RDC Charger.
2. DLM sign
Yellow status when DLM is enabled and active. Green status when enabled and not active. None if DLM is not set.
3. Data from ongoing charging session
EV charging icon with LED light Different LED light colour is presenting charger state, while icon acts as a button. Short press toggle enable/pause charging, long press for priority charging and error reset.
State EVSE status: Communication error; Unknown; Available; Preparing (authorization done, waiting for vehicle to be connected) or (EV connected, authorization required); Charging; SuspendedEV(Paused by EV); SuspendedEVSE(Paused by EVSE); Finishing; Fauled(error); Unpausing; Unavailable; No EVSE response; Available, Authorisation required; Stopping; Starting; Suspended by DLM; Reserved; Reserved, preparing(EV connected, authorization required); Charging ended or suspended by EV
Phases - number of used phases while charging 3 phases, Phase L1, Phase L2, Phase L3, Unknown phase, 2 phases.
Power Charging power of EV.
EVSE max Momentanely the maximum allowable charging current
Max current Allowed max charging current.
Last session Time - duration of charging session, Energy - consumed energy of charging session.
4. Error message(s)
Possible errors are: CP positive voltage; CP negative voltage; RCD sensor trip; Overvoltage; Undervoltage; Charge with ventilation; PS reading error (EVSE); Current is higher than allowed; RCD sensor malfunction; Internal temperature is too high; PS reading error (grid); Can not lock; Can not unlock; Socket temperature is too high; Unavailable; Other error
Note: for resolving errors please see table below.
5. EVSE settings
Priority charging Utilize all available power to charge as fast as possible ignoring eco charging.
Authorization required Disable unauthorized use of EVSE, authorization is possible with RFID Card, QR code or by cloud application.
Allow charging with ventilation Allow/deny charging if EV requests ventilation.
Disable button Disable functionality of button on housing.
Turn LED off after 3 minutes of inactivity LED light is turned off after 3 minutes.
Eco charging Use current: set desired current for charging.
Charge only at LO tarriff: charging possible at low tariff only. Note: LO tarriff must be set.
Charge with surplus energy: dynamically charge EV if there is surplus energy
EVSE works as slave EVSE is a slave to master (Modbus TCP communication) EVSE with its serial number-SN. Green tick if communication is OK, red X for lost communication.
Limit if connection with master is lost In case of lost communication, use set charging current.
6. Event log
Shows last 10 charging session.
begin & end time Begin date, hour and end of charging session.
duration Duration of charging session [h:min].
energy Consumed energy in session.
card nr./type Card ID used for charging session. If note “not locked” card ID is not used/needed.
note Status message about charging session (normal or some error).
Add or delete RFID/MIFARE tag or QR code, for managing authorized access to EVSE.
Card no. & card ID Supported up to 10 RFID/MIFARE/QR tags/cards.
Manage card Press Add for new card or delete existing one.
Time 60 seconds time frame for adding new card.
8. Time & date and SW version
Time and date with software version release.
9. configurator
Runs Configurator
10. autodetect
Click to find EVSE in local network

Error table

RDC Charger recovers error automatically. To delete error by yourself long press button on charger housing or on application. Charging is stopped while error is active. If red light still flashes, please read table bellow.

Error Possible causes Possible solution
CP positive voltage
CP negative voltage
Measured voltage on CP pin is out of range. Check your charging cable and plug. Reconnect your EV. If error still appears, please contact your EVSE service.
RCD sensor trip DC current leak detected. Please try to connect another EV, if error still appears, please contact your EVSE service. Otherwise, please contact an authorized car service department.
RCD sensor malfunction RCD sensor is damaged or not connected. Please contact your EVSE service.
Supply voltage is out of range. Please contact your EVSE installer.
Charge with ventilation EV requests charging with ventilation and “Charging with ventilation” is not enabled on configurator. Enable “Allow charging with ventilation” if charged EV is located in ventilated area.
PS reading error (EVSE) No communication with internal power sensor. Please contact your EVSE service.
PS reading error (grid) No communication with grid power sensor.
DLM can not work properly.
Check connection with grid power sensor. Please contact your EVSE installer.
Current is higher than allowed Vehicle draws more current/power than allowed. Please try to charge another EV, if error still appears, please contact your EVSE service. Otherwise, please contact an authorized car service department.
Internal temperature is too high Temperature inside of charger is too high. Make sure charger is not exposed to direct sunlight. Please contact your EVSE installer.
Can not lock Only for charger with socket: Socket can not lock the connected plug. Unplug the cable and check if the plug is clean. If it's clean, try charging with a different cable. If it still doesn't work, contact the EVSE installer.
Can not unlock Only for charger with socket: Socket can not unlock the connected plug. Unplug the cable on the vehicle side and try again. If it doesn't work, contact the EVSE installer.
Socket temperature is too high Only for charger with socket: The socket is overheating, socket pin temperature is too high. Try different solutions:
1. Unplug the cable and check if the plug is clean.
2. Turn off the power supply to the charger and check if the socket is clean.
3. Try charging with a different cable.
If it doesn't work, contact the EVSE installer.
Unavailable Parent system has set the charging station to “unavailable” status; Usually for system maintenance or upgrades. Wait for the upgrades to complete. If it takes more than 5 minutes, contact EVSE service or your parent system provider for information.
Other error Other errors that can not be resolved by the user. Contact EVSE service.

HEMS Configurator


Basic system overview.

1. Grid
From grid Tariff (LO, HI, D-LO, D-HI) and power from grid in W
Imported energy by tariff in Wh
To grid Power exported to grid in W
Exported energy in Wh
2. Plants
Produced Produced power in W and energy in Wh
Consumed Consumed power in W and energy in Wh
3. Storage systems
Sourced Power in W and energy in Wh sourced from storage (battery)
Stored Power in W and energy in Wh stored (to battery)
bargraph and %¹ SOC Battery State Of Charge
4. Consumers
Consumed Consumed power in W and energy in Wh
[] Status Output status for managed consumers
click Toggle Click in frame toggles managed consumers output
5. Unknown source
Sourced Power in W and energy in Wh from unknown source
:!: Accumulate also all differences caused by power sensor inaccuracy
6. Other consumers
Consumed Consumed power in W and energy in Wh by other (not measured) consumers
7. Page navigation
home Home screen
power [W] Power screen
energy [Wh] Energy screen
timetable Timetable screen
tariff Tariff screen
dlm Limiterscreen
ev fleet EV fleet screen
IO mux IO mux screen
settings Settings screen
8. Exit
exit Close appliction

¹ only for eStore


Overview of current power distribution by source / consumer.

1. Sourced power
Sourced power for each source
Sums per source type
Total of all sourced power
2. Consumed power
Power for each consumer
3. Power distribution
Partial distributed power
4. Submeter (Green outline)
Power meter is not part of internal circuit

1. Sourced power distribution
How sourced power is consumed by each consumer
2. Consumed power distribution
Who sources consumed power


Energy overview of a given time distributed by sources / consumers.

1. Sourced energy
Sourced energy for each source
Sums per source type
Total of all sourced energy
2. Consumed energy
Energy for each consumer
3. Energy distribution
Partial distributed energy
4. Submeter (Green outline)
Power meter is not part of internal circuit
5. Energy since
Date and time since energy is recorded
6. Reset all
Long-press to reset all energy counters


Weekly timetable for managed consumers.

1. Managed load menu
Switch between managed loads
2. Enable checkbox
When un-checked timetable is not executed
3. Events grid
Events displayed in weekly grid (15 min resolution)
Click to select time and set event by clicking buttons below
4. Once actions (top priority timetable actions)
Actions are executed and then automatically cleared.
“Disable” action will just disable recurring action.
5. Recurring actions (low priority actions)
Actions are executed each week.
6. Cloud optimization
When enabled (checked) cloud optimization is enabled.


Weekly tariff timetable for grid energy per tariff distribution.

1. Tariff grid
Graphical weekly timetable with tariffs.
Click to select term, click-and-drag to select multiple terms.
2. Low tariff dates
Set low tariff dates for holidays.
3. Low tariff
Set low tariff for selected terms.
4. High tariff
Set high tariff for selected terms.

lo tariff dates

Holiday dates when tariff is low

1. Date table
Up to 24 days when tariff is low on holiday
2. Use easter mondays
Use preprogrammed roman-catholic easter monday holidays

Dynamic Load Management

Overview and configuration of DLM

1. Grid Current limit
MAX current limit Current limit threshold for main grid fuse
Enable cluster slave connection Current limit threshold if charger lost connection with master
Enable limiting from cloud Current limit threshold if charger lost connection with cloud
2. Consumer management
Turn consumers on or off
3. Power
Total power and power for each phase
4. Current
Current for each phase
5. Voltage
Voltage for each phase
6. Phase order
First set correct phase order for grid power sensor and then set for other power sensors/devices. NOTE: changing grid phase order will NOT apply to phase order of other connected devices!
7. Status and priority
Yellow status when limiter is enabled and active. Green status when enabled and not active
Priority Device priority group: no limiter, limit last (last to be limited), limit second, limit first (first to be limited)
8. Grid frequency
Grid frequency measured on grid power meter sensor

ev fleet

Overview and configuration of EVSE station. Up to 7 external EVSE supported.

1. EVSE - RDC Charger
RDC charger
2. Additional EVSE (charging station) linked to RDC charger
EVSE supports up to 7 charging stations. Settings are as for RDC Charger.
Slave SN: Serial number of slave charger
Green tick → control of slave by master is allowed,
Red X → control of slave by master is disabled.

io mux

Overview and configuration of input/output ports IO mux

1. Wireless relay WR-1 output function
In the left column are WR modules WR-1 (max 8) with corresponding status (active + communication status). To each WR could be assigned HEMS function (e.g. digital, linker reset, router reset, heat pump channel etc) with output mode (normal or inverted).
2. HEMS input and output function (wired connection) - not for EVSE available
In the left column are MC controller ports to which could be assigned MC-230 functions (digital, linker reset, router reset, etc) with output mode (normal or inverted).
Default settings are for e.g. QX0 → digital 1 while digital 1 is defined for consumer 1 on settings page. Change to define new function role to QX0 port e.g. for linker reset
Enable consumer at input IX0,IX1 or IX2 means that dedicated consumer will be managed (ON/OFF) by input signal on IX0,IX1 or IX2. For example, if thermostat signal is wired to IXO port and “Enable consumer 1” to IX0, while thermostat is active, consumer 1 is active and otherwise.
Limitations: one temperature sensor is allowed, one consumer could be managed by one input only.
3. Heat pump supported operation mode
To control Heat pump by EVSE, define supported operation(control) mode based on heat pump specification. E.g. SGRHP supports external control by two channels (Off, Normal, Increased and Increased + additional heater) thus select them in table to enable functionality.
Note: Before selecting modes, heat pump must be defined in setting page!
4. Slave device IP address
For device (PV inverter or external EVSE) define its IP address.


1. System settings
eStore c….. eStore serial number (automatically detected or can be entered manually).
[] enable When selected EVSE will obtain necessary data (power, voltage…) directly from battery storage system, no need to additional power sensor.
[detect] eStore address is cleared and new eStore can be detected.
HIQ Home c….. HIQ Home serial number (automatically detected or can be entered manually).
[] enable When checked HEMS will read Grid power and energy from HIQ Home (so there is no need to duplicate power-sensor).
[detect] HIQ Home address is cleared so new can be detected.
Virtual grid PS [] enable Select if system is without main grid power meter. Energy, power and currents are calculated from other power meters.
Internal temperature Temperature inside of EVSE
Modbus (wired) cycle time Cumulative reading time of all wired power sensor in ms
Modbus (wireless) cycle time Cumulative reading time of all wireless connected power sensor in ms
Modbus (TCP) cycle time Cumulative reading time of all TCP connected devices in ms
IP address IP address of EVSE
DHCP Select for DHCP to obtain an IP address automatically → apply and save to confirm.
Static IP Set static IP to EVSE → apply and save to confirm.
Note: If static IP settings are wrong, we won't be able to access RDC Charger any more!!! Restart EVSE with jumper between IX1-GND to return RDC Charger to DHCP settings.
2. Sources and Consumers settings table
SOURCES Source name
icon Source icon
3. Device status
Status Status OK, Warning, Error, Detected
4. Device message
source and consumer management Source or consumer power sensor management
message Messages related to source or consumer power sensor
Power sensor is connected via WM-1 module
5. Device configuration
Configuration add Associate new power sensor to source or consumer
del Disassociate power sensor from source or consumer & configure it as new power-sensor
6. Device type
meter Source or consumer power-sensor type
configuration in/ex Power plant connection¹
7. Submeter option
sub Check if this power meter or device is not part of internal circuit. Energy division for this device is ignored and outlined in green color.
8. New device
Detected new power sensor.
9. Device output
output Select consumer output type
man. time Managed consumer manual override timer
P nominal Enter power for device in case where power sensor is not assigned to device.
clock Enable timetable
10. Permanent memory parameters
[init parameters] Init all parameters to default values
[save parameters] Save all parameters to permanent memory
[read parameters] Read all parameters from permanent memory
[] autosave parameters Parameters will be automatically saved to permanent memory in 15 minutes after last parameter change
11. WM / WR settings
Scan w-less dev. Press to start scanning for power sensors wirelessly connected via WM-1 module as well as for WR-1 relay. Scanning is active for 5 minutes.
WM / WR pairing Press to pair new WM-1 or/and WR-1.
12. Backup / Restore to PC
[backup] Backup all parameters to PC
[restore] Restore all parameters from PC backup2
13. Autodetect
[autodetect] Click to find EVSE in local network.

1 only for the first power plant

2 older versions of backup files may be used. Any unsuccessfully backup or restored parameters will be displayed but operation will end successfully if you use continue.

RDC Charger Update

RDC Charger application will detect update automatically.

Procedure to update RDC Charger application is as follows:

  • press OK and make sure to follow further instructions on page (1) (2)
  • hit the button Go to download page (2) which will open internet browser on download page, download and install
  • hit the button Remind me later to postpone update for 5 minutes
wiki/20_rdc_charger/30_software/start.txt · Last modified: 2024/03/11 09:01 by saso.santelj