34907数字输入/输出配置输出收到错误301

嗨！
我正在尝试在34907设置通道1和2（使用34972A）输出数字位模式，但我一直收到错误301：“模块当前正在进行扫描.....停止正在进行的扫描，发送
ABORt命令或总线设备清除。“
我已经发现其中一个通道被配置为输入，但我怎么能“覆盖”这个？
发送SOURce：DIGital：DATA [：{BYTE | WORD}]，（@）不起作用（使用WORD到@ 101或BYTE到@ 101：102）。
我想要的是通过发送8位模式分别与通道1（和2）进行通信。
那么如何清除扫描列表呢？
什么SCPI命令使总线设备清除？
或者是否有CONFigure命令配置除使用SOURce之外的输出通道？
感谢任何可以解决我的问题的想法.. :)



     以下为原文

  Hi!

I'm trying to set up channel 1 and 2 at 34907 (using 34972A) to output a digital bitpattern, but I keep getting error 301: "Module currently comitted to scan.....To stop a scan in progress, send the ABORt command or a bus Device Clear."
I've figured out that one of the channels are configured as input, but how can I "overwrite" this? Sending SOURce:DIGital:DATA[:{BYTE|WORD}] ,(@) does not work.(either using WORD to @101 or BYTE to @101:102). What I want is to communicate separatly to channel 1 (and 2) by sending a 8bit-pattern. So how to clear a scanlist? and what SCPI-command does a Bus Device Clear?  
Or is there a CONFigure command to configure channels to be output other than using SOURce?


Thankful for any ideas that can solve my problem..:)