在PLC的编程语言中，梯形图是**为广泛使用的语言，通过PLC的指令系统将梯形图变成PLC能接受程序，由编程器键入到PLC用户存储区去。而梯形图与继电器控制原理图十分相似，主要原因是PLC梯形图的发明大致上沿用户继电器控制电路的元件符号，仅个别处有些不同。
Omron C200H-B7A21 B7A I/F unit
HV# Keyence KL-16BT (4 units)
VME bridge P/N. 036551 Rev. D VME-VME bridge 36551
FAST S.A. FBLOUT32B FBLOUT 32B unit
FAST S.A. FBINC4-B unit
Stahl 9419/PS-RCT & 9412/PS-IPM
ASM 02-82394 SOL DRIVER 03-28340 Rev F
Medar 7203-2M4 900-7203-2M4 board
Keyence EX-505
IAI RCP-C-RSW-I & RCP-C-RSW-I-SE
DELAY UNIT 94802-61093
ABB single board assy 3528139
THK teaching box APT
Vexta ASD12B-C
Quin Mini PTS
Tri-sen systems assy 85-3194 rev C
PCB assy 37430-112-96
Delta design PCA 1909502-501 Rev H
RVSI 68410 rev B0 & 61095 rev E
Micrion 150-1090 Rev. C5
ASM MBDST module 02-84048 Rev. A
Siemens G85139-B2753-A0?05
Omron C200H-MD501 input out module (lot 0f 2)
Basler L301kc & Sigma EX 105mm 1:28D marco lens
schrittmotorste?uerung pse SMP3200 B (5 pcs)
NEC 19436XA 0B01 V01EA 277-053585-002
LTX U-MANIP control broad 860-2063-00 rev. AA
Schleicher UBK 16E 10D/16A(D) 31409850 729 094
Mitsubishi FW53C board BN634E040G52
Neutrik A2 P02D board
Disco KN-006 UA-001901 input
Disco OT-003 EAUA UA-217000 scale counter
Advanced energy 5016U & 5022L
unio optical DZ2 zoom microscope
Komatsu GR-66-T P/N: ABBBA00200
ASAHI SUNAC MJ controller MJC300
16436-1-1 终端设置