来实现二者公共地连接。如果无法确保公共地配置，在编程器和PLC串行连接之间使用端口隔离装置(IC690ACC903)。如果编程器地与PLC地间存在电势差，可能存在电击危险。同样地，当二者间通过编程器串行电缆连接时，就会损害端口或转换器(如果使用了)。
ALLEN BRADLEY 505-AAB STARTER, NIB
SIEMENS ET 200X 24VDC PROFIBUS MODULE 6ES7 141-1BF12-0X
TELEMECANIQUE ZB2-BE101 CONTACT BLOCK, LOT OF 31, IN BO
SYLVANIA QTP3X32T8/UNV ISL-SC 120-277V ELECTRONIC BALLA
MITSUBISHI ELECTRIC MELSERVO 100W AC SERVO DRIVE MR-C10
ALLEN BRADLEY 140582 SCR AC DRIVE SPARE PARTS KIT, NIB
FUSION UV SYSTEMS HIGH VOLTAGE MICROWAVE RADIATION UNIT
SCHNEIDER MODICON TSX QUANTUM 24VDC SINK/ SOURCE I/O MO
HONEYWELL M4185B1009 MODUTROL IV MOTOR, 160o STROKE, 12
ALLEN BRADLEY 3HP ADJUSTABLE FREQUENCY AC MOTOR DRIVE 1
ACOPIAN SERIES A REGULATED POWER SUPPLY A90HT330 I
ALLEN BRADLEY 509DC-M/A12564 600 VAC LOW VOLTAGE STARTE
ELECTRON BEAM ENGINEERING QCC HD 504 WELDING CABLE, LOT
STATIC CONTROLS 900-M-4-18-120-?P-120 SERIES 900 DISPLAY
POWEREX KD324510 TRANSISTOR MODULE, LOT OF 2, NNB
LAMBDA ELECTRONICS 18.0-29.40 VDC REGULATED POWER SUPPL
