描述
在PLC系统结构不断发展的同时，PLC的编程语言也越来越丰富，功能也不断提高。除了大多数PLC使用的梯形图语言外，为了适应各种控制要求，出现了面向顺序控制的步进编程语言、面向过程控制的流程图语言、与计算机兼容的高级语言（BASIC、C语言等）等。多种编程语言的并存、互补与发展是PLC进步的一种趋势。
Fireye D-Series amplifer 72d1r1/NIB
$ FIREYE EB-700 AUTOMATIC PRIMARY FLAME MONITOR
One-day shipping available
Lot 3 Fireye Flame Safeguard Control Systems 26SJ5 1000
NEW FIREYE 71D90 D-SERIES PROGRAMMER USE W 70D30
One-day shipping available
FIREYE BURNER CONTROL EB-700 ED500 EP170 EUVS4 60-14662
Expedited shipping available
FIREYE E100 Flame Monitor Chassis Display & Cover NEW
1 NIB FIREYE E100 FLAME MONITOR 120 VAC
Fireye EPD 160 EPD160 Programmer Module Burner monitor
Fireye EPD 380 EPD380 Programmer Module Burner monitor
NEW Fireye EP270 Programmer Module Flame Monitor EP-270
