命令名称：write_device_variable_3

命令ID：49DF

命令号：237

命令操作：cmdOpWrite

命令中事务个数：1

事务列表

    事务号：0

    事务中请求数据列表

条目类型	标识	掩码	整数	浮点	变量ID
cmdDataFlags	cmdDataItemFlg_indexNinfo	0	0	0	device_variable_3_index_code
cmdDataReference	cmdDataItemFlg_None	0	0	0	MASS_FLOW_user_unit
cmdDataReference	cmdDataItemFlg_None	0	0	0	MASS_FLOW_conv_factor
cmdDataReference	cmdDataItemFlg_None	0	0	0	MASS_FLOW_bi_directional_mode

    事务中响应数据列表

条目类型	标识	掩码	整数	浮点	变量ID
cmdDataReference	cmdDataItemFlg_None	0	0	0	response_code
cmdDataReference	cmdDataItemFlg_None	0	0	0	device_status
cmdDataFlags	cmdDataItemFlg_indexNinfo	0	0	0	device_variable_3_index_code
cmdDataReference	cmdDataItemFlg_None	0	0	0	MASS_FLOW_user_unit
cmdDataReference	cmdDataItemFlg_None	0	0	0	MASS_FLOW_conv_factor
cmdDataReference	cmdDataItemFlg_None	0	0	0	MASS_FLOW_bi_directional_mode