我用STEP V5。1 SP2 打开一个机床的PLC程序,他如下报警:
OPEN (257:9)
The project contains objects of the optional package 'SINUMERIK 810/840D' that cannot be processed because the optional package is not installed or an outdated version is installed
我请教别人,他说我library里少文件!
请教各位高手,如何处理!!
不胜感激!