Appendix 1 - Ex9EMS 1P 2M 100A 2T
A2.1 Communicating via the M-bus output
The Ex9EMS 1P 2M 100A MB 2T meter is equipped with an M-bus port, the data can be read out via this port. The communicati-
on protocol conforms to the EN13757-3 standard.
The meter can communicate with your PC. In order to read out the meter registers first install and configure the PC software. Use
an M-bus level converter to connect the PC and the meter. The cable should be connected to terminals 10 and 11. The default
communication address of the meter is 00.
The defaults for M-bus communication are:
•
Baud rate 9600
•
8 data bits
•
even parity
•
1 stop bit
The secondary addressing (253/FD) is preset to the last 8 digits of the serial number printed on the side of the meter. However
this can be changed to a more convenient number through IR or M-bus communication.
The baud rate can be lowered to values 4800, 2400, 1200, 600 and 300 baud. Data, parity and stop bit cannot be changed.
For the registers used in the meter and how to interpreted the data, please use the M-bus register map on the next page.
More detailed information on M-Bus can be found:
www.m-bus.com
Appendix 2 - Ex9EMS 1P 2M 100A MB 2T
NOARK Ex9EMS 1P 2M - 15
