西门子 6FC5403-0AA00-0AA0 模块
1.功能测试不能代替参数测试 
2. 功能测试仅能测试到器件的截止区，放大区和饱和区，但无法了解此时的工作频率的高低和速度的快慢。 
3. 对数字芯片而言，仅知道有高低电平的输出变化，但无法查出它的上升和下降沿的变化速度。 
4. 对于模拟芯片，它处理的是模拟的变化量。其受电路的元器件的分布，解决信号方案的不同的影响，是错综复杂的。就目前的在线测试技术，要解决模拟芯片在线测试是不可能的。所以，这项功能测试的结果，仅能供参考。 
5. 大多数的在线测试议，在对于电路板上的各类芯片进行功能测试后，均会给出“测试通过”或“测试不通过”。那么它为什么不给出被测器件是否有问题呢？这就是这类测试仪的缺撼。因为在线测试时，所受影响（干扰）的因素太多。要求在测试前采取不少的措施（如断开晶振，去掉CPU和带程序的芯片，加隔离中断信号等等），这样做是否均有效，值得研究。至少，目前的测试结果有时不尽人意。 
6. 了解在线测试仪的读者，均知道有这么一句行话。“在线测试时不通过的芯片不一定是损坏的；测试通过的芯片一定是没有损坏的。”它的解释为，如器件受在线影响或抗干扰时，结果可能不通过，对此不难理解。那么，是否损坏的芯片在进行测试时，均会得出“不通过”呢？回答确实不能肯定。笔者与同行均遇到过，明明芯片已损坏了（确切地说换上这个芯片板子就不工作了），但测试结果是通过的。解释为这是测试仪自身工作原理（后驱动技术）所致。故此我们不能过分依赖在线测试仪（尽管各厂家宣传的很玄）的作用，否则将使维修电路板的工作误入歧途。 
西门子 6FC5403-0AA00-0AA0 模块
6FC5012-0CA01-0AA0
6FC5110-0BA02-0AA0
6FC5110-0BB02-0AA0
6FC5111-0CA01-0AA0
6FC5111-0CA02-0AA0
6FC5111-0CA02-0AA2
6FC5111-0CA03-0AA2
6FC5111-0CA05-0AA0
6FC5112-0EA01-0AA0
6FC5114-0AA02-0AA0
6FC5135-0AA01-0AA0
6FC5211-0AA00-0AA0
6FC5211-0AA10-0AA0
6FC5310-0DF00-2AA0
6FC5357-0BH00-0XE1
6FC5403-0AA00-0AA0
6FC5403-0AA00-0AA1
6FC5410-0AA00-0AA0
6FC5410-0AX02-0AA0
6FC5410-0AX02-1AA0
6FC5603-0AA00-0AA0
6FC9344-3QM       
16139-208/1
16139-215/1
16139-215/3
16139-215/5
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6SN1113-1AB01-0BA0
6SN1113-1AB01-0BA1
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6SN1153-8AX10-1AB0