Ocpp, possible to send heartbeat signal?

[Jonas S]

Hello

Would it be possible, maybe through websocket? to send heartbeat command to ocpp backend? 
What I'm really after is to use a energy meter and send consumption to the backends Load managment but if I could mange to figure out just the heartbeat function I should be able to get the rest working by my self


json script for heartbeat response:
{
    "$schema": "http://json-schema.org/draft-04/schema#",
    "id": "urn:OCPP:1.6:2019:12:HeartbeatResponse",
    "title": "HeartbeatResponse",
    "type": "object",
    "properties": {
        "currentTime": {
            "type": "string",
            "format": "date-time"
        }
    },
    "additionalProperties": false,
    "required": [
        "currentTime"
    ]
}



/Jonas

[admin]

We're looking into OCPP at the moment. Examples will be posted when ready.

[admin]

See attached code for OCPP v1.6 client example.

[Jonas S]

See attached code for OCPP v1.6 client example.

Cool. Thanks

[pioneersteffen]

We're looking into OCPP at the moment. Examples will be posted when ready.

Many thanks, looks promising! Do you see a difference to using it with OCPP 2.0?

[admin]

The base protocol is the same but the command structure is different. Meaning this example won't work with 2.0 without modifications.

[pioneersteffen]

Thanks admin for the quick reply! Are you planning to supply also a template for OCPP version 2.0 in future?

[admin]

Attached v2.0 client example.

[pioneersteffen]

Many thanks for the prompt help!

[victor.back]

See attached code for OCPP v1.6 client example.

Thanks for sharing examples. 

I ran this in a Resident with the user.websocket and get 
arg1 string: ws connection failed
arg2 string: connection refused

tried it on an Easee chargebox.

[admin]

This example emulates a charger so LM acts as a client. Connecting charger to LM is a different thing.

[victor.back]

This example emulates a charger so LM acts as a client. Connecting charger to LM is a different thing.

Okey, but is it possible to connect a charger to LM via OCPP for doing a smart charging solution? 

Heres the developer doc from Easee
https://developer.easee.cloud/docs/ocpp-smart-charging

[admin]

Possible but we don't have a ready example at the moment. See this for Easee connectivity: https://forum.logicmachine.net/showthread.php?tid=3301

[victor.back]

Possible but we don't have a ready example at the moment. See this for Easee connectivity: https://forum.logicmachine.net/showthread.php?tid=3301

Okey thank you!

[domotiqa]

Is there any solutioon to take information from EV CHARGING Expert SCHNEIDER HMIBSC...

For example take the total/zone consumsion of evlink.... I know we can communicate modbus to the evlink (but I have 20 evlink). I was looking for a solution to interface with the SE EV HMI.
Do you know it ?
thanks

[FatMax]

Is there any solutioon to take information from EV CHARGING Expert SCHNEIDER HMIBSC...

For example take the total/zone consumsion of evlink.... I know we can communicate modbus to the evlink (but I have 20 evlink). I was looking for a solution to interface with the SE EV HMI.
Do you know it ?
thanks

The EV Charging Expert does not expose that information in the API they developed for the EVCE.

You are better off requesting the info over modbus tcp.

[domotiqa]

ok
I ssaw that we can provide ocpp server on the EV but not yet implemented on LM I guess
I didn't know there was an API

when you say modbus ip you mean to the evlink not the EVCE, cause I didn't find any modbus register for it, only for the evlink station

[FatMax]

ok
I ssaw that we can provide ocpp server on the EV but not yet implemented on LM I guess
I didn't know there was an API

when you say modbus ip you mean to the evlink not the EVCE, cause I didn't find any modbus register for it, only for the evlink station

Yes, I mean polling the EVlinks via modbus TCP.