ABB DCS DI模块di840

di840

di840

指令的使用说明：

1）并联电路块串联连接时，并联电路块的开始均用LD或LDI指令；

2）多个并联回路块连接按顺序和前面的回路串联时，ANB指令的使用次数没有限制。也可连续使用ANB，但与ORB一样，使用次数在8次以下。

03触点并联指令（OR/ORI/ORP/ORF）

1）OR（或指令） 用于单个常开触点的并联，实现逻辑“或”运算。

2）ORI（或非指令） 用于单个常闭触点的并联，实现逻辑“或非”运算。

3）ORP 上升沿检测并联连接指令。

4）ORF 下降沿检测并联连接指令。

触点并联指令的使用说明：

1）OR、ORI、ORP、ORF指令都是指单个触点的并联，并联触点的左端接到LD、LDI、LDP或LPF处，右端与前一条指令对应触点的右端相连。触点并联指令连续使用的次数不限；

2）OR、ORI、ORP、ORF指令的目标元件为X、Y、M、T、C、S。

04触点串联指令（AND/ANI/ANDP/ANDF）

1）AND（与指令） 一个常开触点串联连接指令，完成逻辑“与”运算。

2）ANI（与反指令） 一个常闭触点串联连接指令，完成逻辑“与非”运算。

3）ANDP 上升沿检测串联连接指令。

4）ANDF 下降沿检测串联连接指令。 

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