用tsxpcx3030-c编程电缆连接PC和PLC   使用PL7pro v4.4软件

CPU是:TSXP57104 ,连接时出现内容:reservation not possible, the PLC has already been reserved.
in the case of reconnection following an accidental break in the pc-plc link,wait 1min 30s
before trying to reconnect

在CPU:TSXP574823 ,可成功上载程序