描述
PLC采用扫描方式工作。从实时性要求来看，处理速度应越快越好，如果信号持续时间小于扫描时间，则PLC将扫描不到该信号，造成信号数据的丢失。
处理速度与用户程序的长度、CPU处理速度、软件质量等有关。目前，PLC接点的响应快、速度高，每条二进制指令执行时间约0.2～0.4Ls，因此能适应控制要求高、相应要求快的应用需要。扫描周期（处理器扫描周期）应满足：小型PLC的扫描时间不大于0.5ms/K；大中型PLC的扫描时间不大于0.2ms/K。
FUJI ELECTRIC SERVO IF SERVO BOARD JAPAN
Expedited shipping available
FUJI ELECTRIC PYZ4RAY1-5V-N TEMPERATURE CONTROLLER [°F]
NEW FUJI ELECTRIC FC2LA-DL DEVICENET AS-1 GATEWAY
Fuji Electric Molded Case Circuit Breakers BU-ESB3030
GE FUJI ELECTRIC AF-300E$ DRIVE CAT#6KE$243007X1A1
Fuji Electric PXZ4-REY2-4V Temperature Controller ! NEW
Fuji Electric BU-ECA-3070 Breaker 70 Amp 3 Pole ! NEW !
Fuji Electric BU-FSB-3125 Breaker 125 Amp 3 Pole ! NEW
Fuji Electric BU-FSA Circuit Breaker — Motor Operating
Fuji Electric SS201-3Z-D3 Solid State Contactor Relay
FUJI ELECTRIC ASKP-4014 0111 DRIVE *****XLNT*****
FUJI ELECTRIC ASKP-4014 0111 DRIVE ***XLNT***
FUJI ELECTRIC FVR0.4E9S-7EN INVERTER DRIVE
FUJI ELECTRIC FTU-123C DI 12-24VDC NEW!
