cFos Charging Controller - Modbus Registers

These registers are available for Modbus RTU and Modbus TCP. The cFos Charging Controller supports the Modbus functions

There are three devices:
2 S0-Meters and 1 EVSE, they are distinguished by Modbus Slave ID and (for Modbus TCP) by TCP port.

Registers (r = read-only, w = write-only, rw = read/write)

Name	Address	Registers	Description
vendor_id	8000	2 r	Unique vendor id, 0xcf05
product_id	8002	1 r	Product id, 1
device_id	8003	1 r	Device id inside the product, 0x100
product_version	8004	2 r	Product version, major.minor
product_build	8005	1 r	Product build number
mapping_version	8006	1 r	major.minor version of this register mapping
padding_1	8007	1 r	Reserved
serial_no	8008	8 r	Serial number string
name	8016	16 r	Product name, "cFos Charging Controller"
slave_id	8040	1 rw	Modbus slave ID

Name	Address	Registers	Description
input	8041	1 r	Reserved
pulsesperkwh	8042	2 rw	Impulses per kWh for input S0
phases	8044	1 rw	Bitmask of simulated phases, bit 0 = L1, bit 1 = L2, bit 2 = L3
voltage_l1	8045	1 rw	Nominal Voltage L1 [V]
voltage_l2	8046	1 rw	Nominal Voltage L2 [V]
voltage_l3	8047	1 rw	Nominal Voltage L3 [V]
pulses	8050	4 rw	Absolute number of pulses on S0 input
timeperpulse	8054	2 r	Time between last two pulses on S0 input [ms]
level	8056	1 r	Current input level of S0 input 0 = current flows, 1 = current does not flow
padding_2	8057	1 r	Reserved
energy	8058	4 rw	Active import [Wh]
power	8062	2 r	Active power [W]
current_l1	8064	2 r	Current L1 [0.1 A]
current_l2	8066	2 r	Current L2 [0.1 A]
current_l3	8068	2 r	Current L3 [0.1 A]
reset_pulses	8070	1 w	Reset pulse counter [1]
reset_energy	8071	1 w	Reset energy [1]

Default values after reboot:

Name	Address	Registers	Description
def_fixed_current	8080	1 rw	Default reg_cable_current [0.1 A] ^(*)
def_charg_cur_limit	8081	1 rw	Default charging current limit [0.1 A] 6-63 ^(*)
def_charging_enable	8082	1 rw	Default charging enabled [0/1] ^(*)
^(*) This value will be set accordingly after a reboot.
cable_current	8090	1 r	PP: Cable max current [0.1 A], 0: no cable
fixed_current	8091	1 rw	Overwrite cable_current [0.1 A]
charge_pilot_state	8092	1 r	CP: 0 = A (waiting), 1 = B (vehicle detected), 2 = C (charging), 3 = D (charging with ventilation), 4 = E (no power), 5 = F (error)
charging_cur_limit	8093	1 rw	Charging current limit [0.1 A] 6-63A, may be limited due to model limitations (e.g. for cFos EVSE 11kW, it's limited to 16A)
charging_enable	8094	1 rw	Charging enabled [0/1] 0 = disable, 1 = enable
charging_current	8095	1 r	Charging current [0.1 A] 6-63
last_rfid	8096	16 r	Last seen rfid (hex-string)
count_restart	8120	2 rw	Number of restarts of the hardware