對于那些要求輸入掃描和輸出掃描之間有固定的時間間隔或需要在接收到輸出數(shù)據(jù)之后對輸入數(shù)據(jù)作–些設(shè)定的應(yīng)用程序，Constant窗口模式是-一個理想的選擇。Constant窗口定時器設(shè)定值范圍為0~255(毫秒)。Constant窗口定時器數(shù)值可以使用編程軟件設(shè)定，也可以通過用戶程序使用服務(wù)請求功能3、4、5來設(shè)定下表描述了

4 MB PCMCIA SATA Flash Memory Mecamira PC Card

Optrex DMF-50840 5.7-inch Mono LCD Display Screen Panel

Telebyte Model 366M RS232 to RS485 Interface Converter

InterlinkBT JBBS-57-E401 Bus Stop Passive Multiport Jun

Lexmark IBM Keyboard PS/2 PS2 71G4644 FRU 71G4646 Termi

Teac 1.2MB Internal Floppy Drive 5.25″ 5 1/4 FD-55GFR

Compaq 35/70 GB DLT Internal Tape Drive SCSI TH6AE-HK 2

Cisco WS-X4232-GB-RJ 10/100 Base-TX 1000 Base-X Switch

Black Box SW932A-R2 Keyboard Monitor Switch 4-Port NIB

Festo ZYZ-63-150 Hydraulic & Pneumatic Feeding Unit ZYZ

National Instruments 181638-01B GPIB Adapter Connector

Teac 1.2MB Internal Floppy Drive 5.25″ 5 1/4 Vintage

Lot of 3 Integrated Power Designs SRW-65-4004/400?6 Powe

Glidepoint Cirque GP160C-0220 Touchpad Mouse Pad Serial

NETGEAR ProSafe 16 Port Base 10/100Mbps Switch FS116 Fa

Emerging Display Technologies Touch LCD 5.6″ inch EDT E

Emerging Display Technologies Touch LCD 5.6″ inch EDT E

Connect Tech IOB08DB9V1 8-Port DB9 Male Board Connector

Lambda LJS-11-5-OV 5VDC Power Supply Hybrid Overvltage

AT&T/Lucent/Ava?ya 1145B1 Power Unit Supply PN:6064533 C