我用224向导做脉冲输出控制伺服调速和定位测试,程序如下:
Network 1
LD SM0.0
= L60.0
LD I0.0
= L63.7
LD I0.1
= L63.6
LD L60.0
CALL SBR1, L63.7, L63.6, M0.0, VB1000, VD2000
Network 2
LD SM0.0
= L60.0
LD M0.4
AN M0.3
= L63.7
LD L60.0
CALL SBR2, L63.7, VD2006, VB1001, VD2010
Network 3
LD I0.2
EU
S M0.4, 1
R M0.3, 1
Network 4
LDD= VD2010, VD2016
EU
S M0.3, 1
R M0.4, 1
Network 5
LD SM0.0
= L60.0
LD I0.3
EU
= L63.7
LD L60.0
CALL SBR3, L63.7, 0, M0.5, VB1003, VD2020
我想用比较位置到达来停止脉冲输出,如Network 4
LDD= VD2010, VD2016
EU
S M0.3, 1
R M0.4, 1
此时用LDD=根本不能SET M0.3和RSET M0.4,只能用LDD>=或LDD<=,但此时脉冲输出的速度越快(就脉冲频率越高),误差越大.

请教各位有没有其它好的控制方法可达到误差是相同的一个定值.

注:用向导只生成以上三个指令,选中高速计数功能.不用包络,不用EM253.