C 语言程序通过设定参数，可以直接访问 PLC 内存。当 C 语言程序开始执行时，为所有参数读取数据并做了备份。如果 C 语言程序是以中断方式或多线程扫描的时间片方式来执行，当它每次返回重新开始时，C 语言程序用原先拷贝备份的数据继续执行。
SOLA EGS E1000 1 kVa INDUSTRIAL CONTROL TRANSFORMER, NI
AERO-MOTIVE DB450 ? SPRING DRIVEN HOSE REEL W/ HOSE
ECONO REEL HG503S-0 SPRING DRIVEN HOSE REEL W/ HOSE
SMC AM650-N10 MIST SEPARATOR, 1″, NIB
HERCULES 536-SWN FOOT SWITCH, NIB
CHICAGO PNEUMATICS TOOL BALANCER, 14-25 lbs
CHICAGO PNEUMATICS TOOL BALANCER, 45-60 lbs
BLACKBOX IC107C-R2 RS-232 to RS-422 BiDirectional CONVE
PEPPERL+FUCHS NJ40-FP-W-B1-P4 INDUCTIVE SENSOR, NIB
PEPPERL+FUCHS NJ40-FP-W-B1-P4?-BHMSP3-N INDUCTIVE SENSOR
PHD R11A 5 090-A-D-K-P-Q ROTARY ACTUATOR, NNB
IFM EFECTOR PN4222 ELECTRONIC PRESSURE MONITOR, PRESSUR
ALLEN BRADLEY 700DC-P600Z24 TYPE P CONTROL RELAY, SERIE
ALLEN BRADLEY LT200-S LEM CURRENT MODULE, NNB
NSK (1) LS300360CLC2B01?P61 LINEAR GUIDE W/ (2) LS30 TRU
SIMPLEX 4100-3206 8 Point Auxillary Relay Module Card,
PARKER LE57-51 LE SERIES DRIVE INDEXER
