随着PLC技术的发展，其数据存储区越来越大。如德维森公司的PLC，其数据存储区（DM区）可达到9999个字。这样庞大的数据存储区，可以存储大量数据。数据采集可以用计数器，累计记录采集到的脉冲数，并定时地转存到DM区中去。数据采集也可用A／D单元，当模拟量转换成数字量后，再定时地转存到DM区
APPLIED MATERIALS - 0010-36584 - ASSY,LID,DCSXZ
APPLIED MATERIALS - 0010-36618 - ASSY,CERAMIC DOME, DPS
APPLIED MATERIALS -0010-36631 - ASSY, HEATER DCSXZ
APPLIED MATERIALS - 0010-3791 - LINER,2 PIECE,TURBO POR
APPLIED MATERIALS - 0010-38023 - LID, VIEW TI/HT TIN
APPLIED MATERIALS - 0010-38281 - 5000/5200 CVD WXZ ASSY
APPLIED MATERIALS - 0010-38909 - CENTURA, ASSY GAS BOX
APPLIED MATERIALS - 0010-39339 - 200MM SWLL LLB SINGLE
APPLIED MATERIALS - 0010-39749 - DPS R1,UNIVERSAL,CERAM
APPLIED MATERIALS - 0010-40276 - E-CHUCK PEDESTAL ASSY
APPLIED MATERIALS - 0010-40276 - E-CHUCK PEDESTAL ASSY
APPLIED MATERIALS - 0010-40296 - ANTENNA-DOME ASSY,DOS
APPLIED MATERIALS - 0010-70064 - CHAMBER ASSY LOAD LOCK
APPLIED MATERIALS - 0010-70403 - ASSY, G-12 AFS LID
APPLIED MATERIALS - 0010-70403 - ASSY, G-12 AFS LID
APPLIED MATERIALS - 0010-76467 - HEAT EXCHANGER
中去。PLC还可配置上小型打印机，定期把DM区的数据打出来。
