I recently started using Siemens newS7-1500plc，Its powerful function is deeply attracted to me.。Share a embarrassing debugging experience here。
Things are like this。I am using it isS7-1500seriesCPU1511（6ES7 511-1AK00-0AB0），Because the supply department is two batches BALMUDA净化器维修 of goods，So there are two hardware versions on the spot at the time of debugging.CPU，One isV1.1，Another kindV1.6。
In the development program，First useV1.6Developing procedures，Development is very smooth，Machine is very normal。But when developing the second stage，Problem occurred，The program downloads to half prompt“Unable BALMUDA音箱常见问题 to download procedures”。This can be hard in it.，One line of inspection procedures，No mistakes；Compiler，No mistakes；Interview online，Very normal。What is going on?？Hardware configuration is alsoS7-1500seriesCPU1511（6ES7 511-1AK00-0AB0），No problem.。But the program downloads to half prompts“Unable to download procedures”。 Eventually discovered online，OnlineCPUVersion isV1.1，And the program hardware configuration version isV1.6，After modification，Download normal。
Share my story here，Please pay attention when you have programmed it later.CPUhardware version。