Optimized Execution Efficiency ■ General Scanning Method ■ AS Series Scanning Method Standard simplex scanning which sequentially goes through instructions by fixed schedule operation (e.g. I/O update). Fixed schedule operations will be automatically processed by CPU background program when scanning starts. It significantly enhances execution speed. It significantly affects overall execution speed. Program Out In Program Out In Program Program Program Out In Out In Out In 1 scan time 1 scan time 1 scan time 1 scan time 1 scan time Optimized I/O updates ■ Common in the industry: PLC module bus update via serial communication ■ AS Series:
PLC module bus update via parallel communication ▪ General serial communication: the signal is sequentially sent from the 1 st module to the last module. The more modules the longer I/O update time it takes. ▪ Industrial communication: the signal is sent via parallel communication. The I/O update time is not significantly prolonged even with more modules. 0.1 ms 0.1 ms*n CPU #1 #2 #3 #4 #5 #6 #n Industrial communication bus greatly enhances stability and speed. CPU #1 #2 #3 #4 #5 #6 #n 0.1 ms 0.1 ms The more modules, the slower update speed Industrial communication bus greatly enhances stability and speed Note: The real updating performance will be different by different extension modules.
Permanent data backup, no battery required ■ Non-volatile memory material for data backup ■ Lithium button battery for Real Time Clock (RTC) function PLC power off Install general CR 1620 battery PLC power off PLC programs permanent backup RTC keeps accurate time Latched area permanent backup 4