public async Task TestUShort()
{
var factory = new ModbusFactory();
IModbusMaster modbus = factory.CreateMaster(_client);
await _client.ConnectAsync(MODBUS_IP, MODBUS_PORT);
ushort?data = await modbus.ReadUShortAsync(MODBUS_SLAVE, 0);
Assert.NotNull(data);
await modbus.WriteUShortAsync(MODBUS_SLAVE, 0, 2);
data = await modbus.ReadUShortAsync(MODBUS_SLAVE, 0);
Assert.NotNull(data);
Assert.Equal((ushort)2, data);
await modbus.WriteUShortAsync(MODBUS_SLAVE, 0, 0);
data = await modbus.ReadUShortAsync(MODBUS_SLAVE, 0);
Assert.NotNull(data);
Assert.Equal((ushort)0, data);
data = await modbus.ReadOnlyUShortAsync(MODBUS_SLAVE, 0);
Assert.NotNull(data);
}