台达PLC编程手册

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台达PLC编程手册1.1 PLC 扫描方法..............................................................................................................1-2
1.2 信号流向.......................................................................................................................1-3
1.3 唱， 常闭节点.............................................................................................................1-3
1.4 PLC继电器和寄存器....................................................................................................1-4
1.5 梯形图符号...................................................................................................................1-5
1.5.1 创建-个PLC 梯形图程序.........................................................................1-6
1.5.2 LD / LDI (唱或者常闭节点的载入) ...........................................................1-7
1.5.3 LDP / LDF (上升沿或者下降沿指令的载入) ................................................1-7
1.5.4 AND / ANI (唱节点或常闭节点的串接) ....................................................1-7
1.5.5 ANDP / ANDF (上升沿或下降沿节点的串接) ..............................................1-7
1.5.6 OR / ORI (唱节点或常闭节点的并接) ......................................................1-8
1.5.7 ORP / ORF (上升沿或下降沿节点的并接) ..................................................1-8
1.5.8 ANB (区块串接) ..........................................................................................1-8
1.5.9 ORB (区块串接) ..........................................................................................1-8
1.5.10 MPS / MRD / MPP (Branch instructions分支指令) ....................................1-9
1.5.11 STL (步进梯形程序) ..................................................................................1-10
1.5.12 RET (返回) ................................................................................................1-10
1.6 梯形图和指令的转换................................................................................................... 1-11
1.7 梯形图的化简.............................................................................................................1-15
1.8 常用基本程序设计范例...............................................................................................1-18
程序概念
2.1 ES2记忆区...................................................................................................................2-2
2.2 ES2停电保持记忆方式................................................................................................2-5
2.3 PLC的位，半字节，字节，字.....................................................................................2-6
2.4 二进制， 八进位， 十进制， BCD， 十六进制....................................................................2-6