内部变量可以为:1 PAC系统支持的任何基本类型(BOOL,INT,UINT,DINT,REAL,BYTE,WORD和DWORD):函数块类型。这些成员变量作为嵌套实例。例如，函数块”Motor”可以有–个”Valve,”类型的内部变量。注意，定义一个函数块类型的成员变量并不会创建–个实例。
Fanuc A16B-1210-0230 Circuit Board #7356
Fanuc A06B-6066-H011 Servo Amplifier Series C #11409
Banner Controller GMMDSD1NT-1T2 #31815
Barber Colman 80BD-00012-201-0-00 Maco 8000 #7401
Barber Colman 80BC-00032-001-0-03 Process Module #15901
Barber Colman 80BE-00035-211-V-00 Maco 8000 #15897
Barber Colman 80BE-00035-211-V-00 Maco 8000 #15903
Barber Colman 80EB-10003-002-0-00 Maco 8000 #7254
Control 32 Character Display Board 0049836 #23091
Muegge PC Board MW-LSCE3327-6K-006 #23028
STI Minisafe Light Curtain Transmitter MS4332BX #3
Toshiba DC Brushless Servo Motor 22L2-1500R #32688
Thern Spur Gear Hand Winch 452 #33852
International Cyberline Servo Power 110-0108 #20399
ABB Motor Drive ACS501-010-4-00P2, 10HP, #20636
Siemens CPU Module 6ES5 943-7UA11 Simatic S5 #24494
Sunx Light Curtain Emitter SF4B-H64-01 E #37120
