Siemens VersiCharge - Managing and Using RFID

Commissioning
5.3 Managing and using RFID
VersiCharge AC Wallbox IEC
42 Operating Instructions, 03/2021, A5E50366109-AA
5.2.4 Setting communication
Information on the register maps command set is available here.
Supported function codes
1. 0x03 (read multiple Holding Registers)
2. 0x10 (write multiple Holding Registers)
3. 0x11 (Report Slave ID) – The prerequisite is that a unit is
connected with Modbus
Maximum number of RS485 charging units that can be con-
nected to the Parent Modbus unit or Modbus controller
24
Maximum communication bus length (Modbus RTU)
Note: The standard Ethernet segment lengths apply for
Modbus TCP
304.8 m (1000 ft)
Query rate
1 s (min. 500 ms)
Standard Modbus TCP server port
Port 502
The following parameters must be used to establish a Mod-
bus RTU connection
Baud rate = 38400
Parity = even
Data bits = 8
Stop bit = 1
5.3 Managing and using RFID
The Wallbox supports various authentication methods via OCPP.
In addition, it is possible to save the user IDs of authorized RFID cards in a local,
preconfigured list.
You manage the RFID cards via the following channels:
• Modbus controller
• OCPP-based server
• On the device using Admin RFID cards
The management of RFID cards via Admin cards in the local, preconfigured list is described
under Releasing/locking RFID cards.
Using RFID
With RFID cards, you authenticate yourself to start or end a charging process. The procedure
is described in section Charging (Page 48).
The supplied RFID User cards are not released. The next section describes the management of
the RFID User cards.
Alternatively, authentication via Modbus controller or OCPP server is possible. Authentication
can also be disabled in this way.