重新设计程序用于改变PLC工艺的用途要求的情况,不仅程序重编,而且I/O也要重新分配。多数情况下不需要重编程序,作一些修改就可以了。这就要求程序具有易性,便于修改。
在设计PLC程序的过程中,能够满足以上6方面的要求的就能称的上是一个好程序了。
SWITCHING POWER OFSX-150M / 7380025 POWER SUPPLY, 115 V
ALLEN BRADLEY 1770-RG PLC-2 FAMILY REPORT GENERATION MO
ALLEN BRADLEY 1770-RG PLC-2 FAMILY REPORT GENERATION MO
CUTLER HAMMER ECN1808CHC 30 A COMBINATION MOTOR CONTROL
SQUARE D ENCLOSURE LIGHTING CONTACTOR 8502SBA20V2S SERI
YASKAWA JANCD-1003E PC BOARD
FEEDRAIL FR780 3 POLE 600 VDC 250 VAC TROLLEY ASSEMBLY,
PARKER D61VW004C4NYG56 110/120 VOLT HYDRAULIC VALVE, NE
COOPER B-LINE B718-1ZN UNIVERSAL JUNCTION BOX HUB ASSEM
THOMSON, CG20AAAN AND RG20NL0460, ACCUGLIDE SLIDER AND
ALLEN BRADLEY, 1326-CPB1-E-005?,SERIES B MOTOR CABLE, 16
RAD Q-4321-H-BH 24 VDC 90PSI VERSA-MATIC SAFETY JOINT,
ABB, DSQC 230 QYB560103-BN, SERVO CPU CONTROL BOARD
STANLEY R-20 BETA SERVO,
NUMATICS 01325T, DEVICE NET MANIFOLD, 150 PSIG, 24 VDC,
DAYTON 4Z128A 1/8 HP 11:1 RATIO APPROX 1/2" SHAFT DC GE