命令名称：read_feature_key

命令ID：40DC

命令号：230

命令操作：cmdOpRead

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

无

    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
cmdDataReference	cmdDataItemFlg_None	0	0	0	feature_key
cmdDataReference	cmdDataItemFlg_None	0	0	0	ETO_number
cmdDataReference	cmdDataItemFlg_None	0	0	0	dummy_variable
cmdDataReference	cmdDataItemFlg_None	0	0	0	dummy_variable_float
cmdDataReference	cmdDataItemFlg_None	0	0	0	dummy_variable_float
cmdDataReference	cmdDataItemFlg_None	0	0	0	dummy_variable_float
cmdDataReference	cmdDataItemFlg_None	0	0	0	dummy_variable
cmdDataReference	cmdDataItemFlg_None	0	0	0	transmitter_firmware_checksum
cmdDataReference	cmdDataItemFlg_None	0	0	0	weights_measures_software_version