Description
状态继电器是PLC在步进顺控系统实现控制的重要内部元件。它与步进顺控指令STL组合使用,运用状态转移图,编制高效易懂的程序。状态继电器一般分为四类,其编号及点数如下:
初始状态:S0∽S9(10点);
回零:S10∽S19(10点);
通用:S20∽S499(480点);
保持:S500∽S899(400点);
报警:S900∽S999(100点);
Giddings and Lewis CIMREX 67 Touch Screen (PLC1646)
Giddings and Lewis 502-03113-00 Power Supply and Driver
G&L Giddings & Lewis 800 P/N 502-02734-50 Logic I/O
G&L Giddings & Lewis 800 502-02804-50 EIA Interface
G&L Giddings & Lewis 800 502-02724-51 Console Interfac
G&L Giddings & Lewis 800 502-02723-52 CPU Control
G&L Giddings & Lewis 800 502-02722-50 Address Generato
GIDDINGS & LEWIS portable controller
Giddings & Lewis PC Support Module 502-03195-08