描述
整体式PLC的每一个I／O点的平均价格比模块式的便宜，且体积相对较小，所以一般用于系统工艺过程较为固定的小型控制系统中；而模块式PLC的功能扩展灵活方便，I／O点数量、输入点数与输出点数的比例、I／O模块的种类等方面，选择余地较大。维修时只要更换模块，判断故障的范围也很方便。因此，模块式PLC一般适用于较复杂系统和环境差（维修量大）的场合。
VERO BICC 222-53136B BOARD 222-53136B
VERO BICC 222-53136B BOARD
TADIRAN PB PERIPHERAL BUFFER B 449409100
VFR-7214 RossGear XROSS VFR-7214
11 X IBM FRU 39M4349 39M6279 SAS/SATA Backplane
LOT OF 4 HS6037 VER 2.1 MODEL: HS6037
VAT VACUUM GATE VALVE MODULE DOOR
MV Products POSI-TRAP Single Stage Vacuum Inlet Trap
OPTEM 25-81-65 ZOOM 65
ADVANTECH ADAM-4501D-AE NEW! Full Accessories!
Ceragon PH-0-E-18-L-TH PN: 01-2027-0 ODU 18GHz
D9232 PALB TID 427660029826 UA 1055789 RN 02311364
STNC HLP110E Pressure Controller Auto Reset CKC CG1F-GP
Intel MB886-R MOTHERBOARD
NORTEL E1C-FP NTFK01GC 01 NTBP9104 NTFN3408 MODULE
