结构化文本(ST)编程语言IEC 1131-3文本化语言。结构化文本程序包括一系列的声明，这些状态由表达式和语言关键字创建。一个声明令PLC做一个指定的动作。声明提供了变量分配，条件评估，迭代和调用函数和函数块功能。关于PAC系统支持的ST的声明，参数，关键字和操作者，参考第十二章“结构化文本”
Vickers Hydraulic Vane Pump 4520V60A8 #30771
Vickers Hydraulic Vane Pump 4535V60A30 #30773
Vickers Hydraulic Vane Pump 2 7/8″ Shaft #30778
Ransburg Gema Flow Control #31922
Barber Colman Maco 8000 80CB-11001-002-0-00 #26593
Yaskawa PC Board JANCD-I007-1 #32894
Square D Circuit Breaker LAL3640032M, 400 Amp #30192
Allen Bradley AC Servo Drive 1391-DES15-DI-AQB #5381
Foxboro Microplus Controller Single Station 761CNA-AT,
AB Digital 1391-DES15-DI-AQB Servo Drive #5378-81
Lubriquip Trabon Pump Package MODU-FL0 #35014
Square D Circuit Breaker MAL36600, 600 Amp, #6273
Square D Circuit Breaker MAL366006462 600Amp #18798
Boy Mipronic Plus Control Panel 6801867 #17268
Reliance S6R-DIG Power Module 803610-RB #8186
Lenze Frequency Inverter E82EV551 2C200 #22814
Engel CRT Monitor BU-1201ME-1 #34205
Plastrac Auto-Disc Gravimetric Controller #18277
Texas Instruments 100-3101 Programmer TI101 #7650
Mitsubishi FX2-96BMT PC Board #22070
