我选了，除了DB区，其它都可以改成符号

A(
AN "L_面板向出入光电_1"
A "运行状态_1"
AN "结束本行程标志_1"
O
A "自动_单步运行输出中继_1"
A "单步测试启动标志位_1"
AN "出板激活_1"
)
A "Z轴_在上方_1"
A "位置切换上_位置1输入_1"
A "旋转汽缸_垂直位置_1"
A(
A "内部操作工位1"
A "工位1未空标志_1"
A "板架1锁定"
O
A "内部操作工位2"
A "工位2未空标志_1"
A "板架1锁定"
)
AN "回初始位置激活_1"
AN "收放板控制位_1"
A(
AN "出板激活_1"
O DB13.DBX 2.4
)
S "L_X轴去工位Y轴旋转_1"

就象上面的这样