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。
Siemens Teleperm C74103-A1900-A351, 10 Einheiten
AEG 029.123 813, Karte, Module, Board,
Siemens Simatic S5-BT777,Sinec L1,Bus Terminal
ABB Stromberg, SAMC 11 POW, 3AFE57171847, Power Supply
Frenopact-ds, Sanftanlauf Softstart, 830 210 11, HuK
SEIKI PT.SQM8-04 + PT.DIB-02 – Board – Karte
Siemens MVB -Compact, I/O EXT
Indramat Controller, 1.2.50-300W1 , A.C. Servo
Siemens Sinumerik 6FX1122-8BD04, 6FX 1122-8BD04
Siemens Simatic S5, 6ES5 927-3SA12 , 6ES5927-3SA12, CPU
