dbus-modbus-client: Add Comap support

[dirkjanfaber]

Add support for the Comap CM Ethernet module. For example in combination with the InteliLite 4 AMF 25.

On the Comap side, first the MODBUS server needs to be enabled (via the Setpoints -> CM-Ethernet -> MODBUS settings)

TODO

• Add comap driver to dbus-modbus-client
• Log relevant new values to VRM
• modbustcp for some new paths
• dbus-generator-starter
• Adapt GUI pages currently used for FischerPanda to be more generic and reusable for ComAp

[izak]

Dbus paths for comap:

Paths common to other .genset services

/NrOfPhases    ->  1, 2 or 3 for single-phase, split-phase and 3-phase respectively
/Ac/Power      -> Total AC power rounded to the nearest Kilowatt (Comap controller supports no more accuracy)
/Ac/L1/Power   -> Per phase power values to the nearest Kilowatt
/Ac/L2/Power
/Ac/L3/Power
/Ac/Frequency   -> AC Frequency, to 0.1Hz
/Ac/L1/Voltage  -> Per phase voltages to the nearest 1V
/Ac/L2/Voltage
/Ac/L3/Voltage
/Ac/L1/Current  -> Per phase current to the nearest 1A
/Ac/L2/Current
/Ac/L3/Current
/Ac/Energy/Forward -> Produced energy in kWh

Paths specific to comap, some in common with FischerPanda:

/Engine/Speed                -> Engine speed in RPM 
/Engine/CoolantTemperature   -> Engine coolant temperature
/Engine/OilPressure          -> Engine oil pressure
/Engine/Load                 -> Engine load as a percentage
/Engine/OperatingHours       -> Operating hours, to the nearest 0.1 hours.
/StarterVoltage              -> Voltage of starter battery
/FuelLevel                   -> Fuel level as a percentage; on HG195 trailer this always showed invalid
/StatusCode                  -> Enum, re-uses and maps the one previously made for FischerPanda.

Paths NOT implemented

/ErrorCode    -> FischerPanda has 166 error codes. Comap has no such register at all.

Status code

This is identical to the existing values used for FischerPanda

Value	Meaning
0	Stopped / Ready
1	Self-test
2	Preheat (glow-plugs on Diesel engine)
3	Starting
8	Running
9	Stopping
10	Error (not ready to start, or controller is in Emergency Manual mode)

[mpvader]

Hey @izak , nice thanks. Do you still have the service interval (hours or minutes) on your radar?

[Pye-lmk-power]

Are you working with the DSE8610 or DEif AGC150?

[philipptrenz]

Hi @Pye-lmk-power, these GitHub issues are primarily to organize development work. A better place for you questions is here: https://community.victronenergy.com

In short: We already support the DSE 8610 MKII controller. Support for DSE 8610 can be added, if someone provides us with access to such a system for testing. Regarding DEIF AGC150: I can confirm, that we're currently looking into that.