描述
外部DC24V电源若输入回路有DC24V供电的接近开关、光电开关等，而PLC上DC24V电源容量不够时，要从外部提供DC24V电源；但该电源的“—”端不要与PLC的DC24V的“—”端以及“COM”端相连，否则会影响PLC的运行。
ADVANTEST TR9403 SPECTRUM ANALYZER TR98201 SIGNAL GEN.
TEKTRONIX HFS 9009 STIMULUS SYSTEM W/ QTY2 HFS 9DG2
PHILIPS 21364A OMNI-PLANE II ULTRASOUND TRANSDUCER TEE
MODIA GMBH TORQUE SPEED MEASURING SYSYTEM
ROHDE & SCHWARZ SMY02 SIGNAL GENERATOR 9KHz-2.080GHz
ALCATEL ATH1000M Turbomolecular Pump
LeCroy LW420 2Ch Arbitrary Waveform Generator 400Ms/S
JDSU 2213-75SLK O.50W 515nm ARGON-ION LASER HEAD
OLYMPUS CK2 INVERTER TRINOCULAR MICROSCOPE W/CAMERA
Olympus CK2 Inverted Trinocular Microscope
