对于一些应用程序来说，CPU逻辑不需要每个周期都获取信息。VO扫描设定特性使VO扫描更贴近与他们在用户程序中的应用。如果你有很多I/0模块，分别设定模块的扫描特性可以显著的减少扫描时间。在从停止到运行的转换时，将所有模块扫描设定设为不同值的缺点就显现出来了。
SIEMENS CPU Module 6ES7414-2XG01-0AB0 CPU 414-2, #11184
Allen Bradley 5150-RS I/O Scanner Module #28821
Astro-Med Dash II Field Recorder 630040 #29107
Sick Optic Light Curtain LVU 706-2251 #34094
Cincinnati Milacron Processor Module 3-424-1942A #35240
Fanuc I.S. Teach Pendant A05B-2047-C141 #32583
ABB Servo Drive GNT2009504R1 #10913
Allen Bradley 6189-RDB15C Versa View 1500H #18710
Yaskawa Control Board JANCD-MSV01-2 #15249
Spencer Turbo Compressor 1001.5, 1.5 Hp, 3500 RPM #3422
Moog Brushless Servo Motor T-1-M6-030-10-02-16 #32254
Allen Bradley Control Logix 1756L1M3 #21093
Incoe Hot Runner Controller Case MC-760-770 #34077
Mitsubishi AC Servo Motor HA-LH 12K1K #30799
ABB Board 3HAB5957-1 #29141
Moog Servo Valve D634E306 #31798
Allen Bradley 1336Z-PB017-N-GM6 Variable Drive #18690
Adept 8 Slot Controller Rack MV-8 #16971
Adept Control, Power Supply & Rack MV-8 #20990
Allen Bradley Starter 505-EOD Series B #33791
Shinko Color Hard Copy Printer CHC-635, #13212
