Page | 30 DRM-3000 Operating Manual
7 Communication
The communication between the DRM and PC can be performed in 3 ways:
1) Wireless Radio WRM2 located inside the meter.
2) Direct TCP/IP via the meter communication port (RJ-45 connector) using a
TCP/IP to USB Adapter. We have tested the TL-UE300 USB 3.0 TO GIGABIT
ETHERNET Adapter successfully.
3) Network TCP/IP via the meter communication port (RJ-45 connector).
Open the Network Connections screen on your PC
Connect the Meter to your Network connector using a standard network cable.
After a few seconds, if you open the METER DETAILS screen on the Meter, you
will see the IP Address on the Meter update. This IP address is used to connect
to the Meter.
7.1 Protocol
Communication parameters:
Baud rate: 19200 is the default.
Parity: None
Hardware handshaking: None
Software handshaking: None
Stop bit: 1
Prefix: LF
Suffix: CR
Data format: 8 data bits
7.2 Communication Protocol
Description: DRM data to PC via radio or TCP/IP
Byte 1 LF
Byte 2 to byte 7 Id meter number for communication set via Meter View software
Byte 8 status = 0x30=okay, 0x31=over load, 0x32=over threshold, 0x33=no external power,
0x34=low backup battery, 0x38=detector fault.
Byte 9 Status = multiple status messages – See information below.
Byte 10 to byte 16 Dose Reading (xxxxx.x) or 88888.8 in case the Dose is disabled
Byte 17 = 0x30
Byte 18 to byte 22 rate reading X.YZW * 10
T
Byte 23 = 0x30
Byte 24 to byte 25 check sum
Byte 26 CR
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