Driver: Ocpp-809

The driver supports several modes depending on deployment:

You bought 50 DC fast chargers in 2019 that speak only Modbus RTU. The manufacturer went out of business. To connect them to a modern CPO (Charge Point Operator) backend, you install an industrial gateway running the OCPP-809 driver. ocpp-809 driver

Run the driver installer and select the appropriate and printer type (POS-80 series). The driver supports several modes depending on deployment:

sudo systemctl enable ocpp-809-driver.service sudo systemctl start ocpp-809-driver Run the driver installer and select the appropriate

| IEC 104 Concept | OCPP 1.6 / 2.0.1 Mapping | |----------------|---------------------------| | M_ME_TF_1 (measured value, scaled, with timestamp) | MeterValues.req (active import energy) → convert to instantaneous power (kW) | | C_CS_NA_1 (setpoint command, normalized) | SetChargingProfile.req – limit power (kW) or current (A) | | C_CI_NA_1 (interrogation command) | GetCompositeSchedule.req (OCPP 2.0.1) or cache state | | M_SP_NA_1 (single point status – e.g., circuit breaker) | StatusNotification.req (connector status) | | C_SE_NB_1 (select-execute for protection) | Not directly in OCPP; implement as precondition for large limit changes | | Spontaneous events (e.g., overload) | NotifyEvent.req (OCPP 2.0.1) or custom vendor extensions |

and print a test page. If the paper doesn't cut automatically, check that "Partial Cut" or "Full Cut" is enabled in the driver's operation tab. ESC/POS Compatibility: This printer fully supports ESC/POS commands