Badger Meter 340 BN/MB Btu Energy Transmitter - Manual (Page 24)

RS-485 Network Test
Figure 31: RS-485 Test
The Configuration Software has an RS-485 test program
Although it uses Modbus settings, it is testing RS-485 communication
The test requires connection to a COM port using the Data Industrial A302-20 RS 485 to RS-232 convertor cable This cable can
also be helpful with other diagnostics programs and devices that use an RS-232 port to communicate
When testing the RS-485 network, it is sometimes helpful to connect to some other location instead of directly to the 340
BN/MB Btu Energy Transmitter When testing in this way the RS-485 end connector can be removed, and the wires can be
connected directly to the RS-485 pairs
The following table may be helpful to make connections
302 Cable w/RS-485 End 340 BN/MB 340 N2 Series 3000
Red RS-485 + N2 + RS-485B
White RS-485 – N2 – RS-485A
Black REF REF RS-485 Gnd
When the RS-485 Test button is selected the following screens appear:
Figure 32: Test Screens
Data Industrial® 340 BN/MB BTU Energy Transmitter
Page 24 July 2012