Accessories

The module supports the P1 ports defined according to the DSMR4 and DSMR5 P1 specifications. The P1MB is connected to the P1 port of the Smart Meter via a cable with RJ11 connectors at both ends. The module’s Modbus is connected via 3-wires to the RS485 (A(+), A(-) and GND) and acts as a slave to a Modbus master. The unit is powered via the power present on the P1 port of the Smart Meter. External power, via external power adapter, can optionally be added as needed.

The user interface is provided by the 3 LEDs on the front of the module:
PWR: Power present (via P1 or external adapter)
P1: P1 message correctly received
485: successful communication via Modbus

By purchasing an additional cable with an RJ11 connector at one end and a USB port at the other, you will have the ability to self-configure the P1MB. Please note that the cable is not included in the price and must be purchased separately.

Important configuration options include:
Adjustable baud rate on the P1 and RS485 port (ranging from 1200 to 115200)
Adjustable Modbus slave address (default set to 16)
Option to enable or disable the line terminator resistor.

P1MB can be used in conjunction with the Xemex DINGate Multimeter. The DINGate Multimeter acts as a Modbus master for the P1MB and logs standard information such as import/export of energy values. Other information can be added to the log function of the DINGate Multimeter on request. Of course, the P1MB can work in combination with other Modbus/RS485 slaves. Documentation for this is available upon request. The P1MB is ideal for use in solutions designed to monitor energy flows in residential homes or small/medium sized businesses.