在这个例子里，一个SUS_ l0功能块和–个DO_ l0功能块先使程序停止VO扫描，之后从程序中再进行某些VO扫描。输入%100010、%100011和来自%M00001的触点组成-一个门闩电路。这样，每次扫描时SUS_ I0都激活，当%100011为ON时，SUS_ l0功能不激活。如果输入点在SUS_ I0激活后不被DO_I0扫描到，只有通过断PLC电才能使SUS_0功能不激活。SUS_ IOSUS_ IOSUS_ 10

ASEA BROWN BOVERI 57772239 USPP 57772239

SIEMENS 6DD2920-0AR1 NSPP 6DD29200AR1

REXROTH 4WRSE-6-V04-31/?G24K0/A1V USPP 4WRSE6V0431G24K?0

REXROTH 4WRSE-6-V00-31/?G24K0/A1VR-165 USPP 4WRSE6V0031G

CABLETRON CSMIM2-32 USPP CSMIM232

ALLEN BRADLEY 1771-IXE NSFP 1771IXE

GE FANUC IC3600EPSY1E USPP IC3600EPSY1E

GE FANUC IC3600EPSY1A USPP IC3600EPSY1A

ALLEN BRADLEY 6180-DHJEFGDCEC?E USPP 6180DHJEFGDCECE

ALLEN BRADLEY 150-A35NBDA NSFP 150A35NBDA

RELIANCE ELECTRIC 140CM21A USPP 140CM21A

RELIANCE ELECTRIC 804.12.04/BRR NSPP 8041204BRR

SECO 1100-460-025-C-?N-F00 USPP 1100460025CNF00

ALLEN BRADLEY 1400-PB51A NSPP 1400PB51A

ASEA BROWN BOVERI 68463815-P FNFP 68463815P