每一个变量都会占用一个PLC的内存空间，所有的PLC系列（PACSystems™ RX7i除外）必须为每一个变量内存地址（如%R00001）。在 PACSystems™ RX7i中，你不需要对变量内存地址，系统会把它看作一个符号变量。Machine Edition会自动的分配这个变量在 PACSystems™ 中特殊内存空间。
AEG SCHNEIDER MODICON TSX COMPACT COMP 984 CPU 8K PC-E9
FESTO FIELD BUS NODE IC-FSI-11-8E-SA , MISSING INST
ALLEN BRADLEY PANELVIEW 1000 OPERATOR INTERFACE 2711-T1
SUMITOMO 1/4HP 51:33 RATIO SM-CYCLO GEAR MOTOR TC-F / C
ATLAS COPCO CONTROLS QCS 340 25 340VDC 25A 4240 0330 80
SCHNEIDER MODICON TSX MICRO PLC UNIT TSX3721101 W/ TSXD
ALLEN BRADLEY AC SERVO MOTOR 1326-B2E-11-A5 / 126109 P
BUSCH VACUUM PUMP SV-1016-B-000-IHXX
COOPER GARDNER-DENVER m-PRO-400 TOUCH SCREEN 960800-F
SEW-EURODRIVE 3HP 1720RPM INDUSTRIAL AC MOTOR DFT100LS4
RELIANCE ELECTRIC ELECTRO-CRAFT SERVO MOTOR 1326AB-B420
FANUC VIDEO DIGITIZER BOARD A20B-1002-0430/01A
ALLEN BRADLEY 4.3kW AC SERVO MOTOR 1326AB-B530E-21
BALDOR 230/460 10HP 1760RPM SUPER-E AC MOTOR EM3774T SP
BALDOR 230/460V 10HP 1760RPM AC MOTOR EM3774T SPEC. 07H
BALDOR 230/460V 7&1/2HP 1140RPM INDUSTRIAL AC MOTOR M22
