通过82357B USB/GPIB将Keithley 2425连接到PC

我猜它不响应* IDN？
命令。
我没有手册，但规格提到SCPI 1996和_does_包括* IDN？
但我仍然认为这意味着必须实施。
它当然没有指定IEEE488.2，这意味着它应该响应。
您应该能够从用户手册中验证该假设。
假设是这样，没有问题！
VEE正在发送* IDN？
（它询问是否可以先发送它）并且因为仪器没有回复而超时。
只需忽略错误消息并尝试编程！
我的建议是先尝试发送一个[简单]命令，例如
设置电压输出并检查它是否符合您的预期，然后您可以确定完成您需要它完成工作所需的所有命令。
HTH



     以下为原文

  I'm guessing it doesn't respond to the *IDN? command.  I don't have the manual however the specs mention SCPI 1996 and that _does_ include *IDN? but I still don't think that means it has to be implemented.  It certainly doesn't specify IEEE488.2 which would have meant that it should respond.

You should be able to verify that supposition from the user's manual.

Assuming that to be the case, there is no problem!  VEE is sending *IDN? ( it asks if it can send it first ) and is timing out because the instrument is not replying.  Simply ignore the error message and try programming it!  My recommendation is to try to send it a [simple] command first e.g. set the voltage output and check it does what you expect and then you can work on determining all of the commands required to do the job you need it to do.

HTH