WAGO 879-3000 4PU, Руководство по эксплуатации, Страница: 30 / 39

30 WAGO Operating Instructions 4PU/4PS/2PU CT
Appendix 2 – M-Bus
A2.1 Communication via the M-Bus Interface
The meters are equipped with an M-Bus connection via which the data can be read out. The communication
protocol conforms to the EN13757-3 standard.
The meter can communicate with an M-Bus master. Use terminal points 8 and 9 to connect to the M-Bus network.
The default communication address of the meter is 000.
The factory settings for the M-Bus are as follows:
•
Baud rate 2400
•
8 data bits
•
Parity: Even
•
1 stop bit
The secondary address (253/FD) is preset to the last 8 digits of the serial number. You will also find this printed
vertically on the right-hand side of the front of the meter. This address can be changed to a desired address.
The baud rate can be changed to 9600, 4800, 2400, 1200, 600 and 300 baud.
Data, parity and stop bit cannot be changed.
The M-Bus register map on the next page shows which registers are used in the meter and how the data is to be
interpreted.
More information on M-Bus is available here:
www.m-bus.com
4PS
4PU
2PU CT