message: Log info ping/pong active/inactive
diff: @@ -162,6 +162,12 @@ export default class JsonCentralSystemServer extends CentralSystemServer {
  });
  // Keep alive WebSocket connection
  if (this.keepAliveIntervalMillis > 0 && !this.keepAliveInterval) {
  + void Logging.logInfo({
  + tenantID: Constants.DEFAULT_TENANT,
  + module: MODULE_NAME, method: 'createWSServer',
  + action: ServerAction.EXPRESS_SERVER,
  + message: 'Charging Station Web Socket ping/pong is active'
  + });
  this.keepAliveInterval = setInterval((): void => {
  for (const jsonWSConnection of this.jsonChargingStationClients.values()) {
  if (!jsonWSConnection.isConnectionAlive) {
  @@ -178,6 +184,13 @@ export default class JsonCentralSystemServer extends CentralSystemServer {
  jsonWSConnection.getWSConnection().ping((): void => { });
  }
  }, this.keepAliveIntervalMillis);
  + } else {
  + void Logging.logInfo({
  + tenantID: Constants.DEFAULT_TENANT,
  + module: MODULE_NAME, method: 'createWSServer',
  + action: ServerAction.EXPRESS_SERVER,
  + message: 'Charging Station Web Socket ping/pong is disabled'
  + });
  }
  }
  }
  