Gas Meters via the P1 Port of the Digital Meter
A digital gas meter sends its meter reading to the digital electricity meter, which publishes it on its P1 port. The EMS reads the gas meter through the same P1 cable as the electricity meter: no extra wiring is needed.
| Device Type |
|---|
| Gas meter paired with a digital meter |
The gas meter must be paired with the digital electricity meter by the grid operator. If the gas meter's reading is not shown on the display of the digital meter, the EMS cannot read it either.
Connect the digital electricity meter to the EMS with a P1 cable, as described on the page of the electricity meter (for example Fluvius). Activate the P1 port first.
The address is the M-Bus channel (1 to 4) on which the digital meter publishes the gas meter. The digital meter numbers its M-Bus devices in the order in which they were paired, so the gas meter is often on channel 1, but not always.
Gas volume before and after adding the gas meter As long as no gas meter device is added, the Digital Smart Meter itself reports the gas volume of M-Bus channel 1. Once the gas meter is added, the gas meter device reports it and the Digital Smart Meter stops reporting it. The history from before stays with the Digital Smart Meter. The gas total of the site counts the volume once in both cases.
| Measurement | Description | Unit |
|---|---|---|
| Volume | Meter reading of the gas meter | m³ |
The digital meter receives a new reading from the gas meter every 5 minutes (DSMR 5, e-MUCS) or every hour (DSMR 4.2). The volume therefore rises in steps.
| Problem | Possible Cause & Solution |
|---|---|
| Gas meter not found by the scan | The gas meter is not paired with the digital meter: its reading is not shown on the display of the digital meter. Contact the grid operator. |
| Gas meter not found by the scan | The P1 cable delivered damaged data during the scan. Scan again. |
| Status "No new value from this meter for more than 3 hours" | The gas meter no longer reaches the digital meter (for example an empty battery or a decoupled meter). The digital meter keeps publishing its last reading: that reading is not stored, so the consumption is not shown as zero. Check the gas meter and its pairing. |
| Status "The digital meter publishes no M-Bus device on channel …" | The gas meter was removed or paired again. Scan the P1 port again and add the gas meter on its new channel. Then remove the old device. |
| Status "M-Bus channel … now holds another type of device" | Another meter (for example a water meter) took the channel of the gas meter after a re-pairing. Its reading is not stored as gas. Scan again, add the gas meter on its new channel and remove the old device. |
| Status "M-Bus channel … is already read by device …" | Two devices were added for the same channel, typically the old and the new meter after a replacement. Remove the device of the meter that is no longer paired. |