diff --git a/csharp/Lib/Devices/EmuMeter/doc/ModbusRegisters.pdf b/csharp/Lib/Devices/EmuMeter/doc/ModbusRegisters.pdf
new file mode 100644
index 000000000..77bd4acf6
Binary files /dev/null and b/csharp/Lib/Devices/EmuMeter/doc/ModbusRegisters.pdf differ