M74003-A8162M74003-A8162

CPU模块的工作电压一般是5V，而PLC的输入／输出信号电压一般较高，如直流24V和交流220V。从外部引入的尖峰电压和干扰噪声可能损坏CPU模块中的元器件，或使PLC不能正常工作。在I／O模块中，用光耦合器、光电晶闸管、小型继电器等器件来隔离PLC的内部电路和外部的I／O电路，I／O模块除了传递信号外，还有电平转换与隔离的作用。

  3．编程器   

    编程器用来生成用户程序，并用它进行编辑、检查、修改和监视用户程序的执行情况。手持式编程器不能直接输入和编辑梯形图，只能输入和编辑指令表程序，因此又叫做指令编程器。它的体积小，价格便宜，一般用来给小型PLC编程，或者用于现场调试和维护。

    使用编程软件可以在计算机的屏幕上直接生成和编辑梯形图、指令表、功能块图和顺序功能图程序，并可以实现不同编程语言的相互转换。程序被编译后下载到PLC，也可以将PLC中的程序上传到计算机。程序可以存盘或打印，通过网络，还可以实现远程编程和传送。

64420591
6AB5102-0AA70
6AB6515-0AC
6AC6968-1AB70
6AW2003-0A
6DP1210-8BB
6DP1210-8BC
6DP1230-8CC
6DP1232-8AA
6DP1232-8BA
6DP1280-8AA
6DP1280-8AB
6DP1511-8AA
6DP1531-8AA
6DP1614-8BB
6DP9901-8AA00
6DP9902-8BA00
6DR1111-6RJ93
6DR1112-1NJ11-0NJ0
6DR1112-6NJ11-3NU0
6DR1124-1NJ03-0NN0
6DR1410-0NJ11-1JN0
6DS1000-8AA
6DS1000-8AB
6DS1000-8AC
6DS1001-8AA
6DS1003-8AA
6DS1003-8BA
6DS1004-8AA
6DS1005-8AA
6DS1101-8AB
6DS1102-8AB
6DS1103-8AB
6DS1104-8AA
6DS1105-8AA
6DS1106-8AA
6DS1106-8BA
6DS1107-8AA
6DS1110-8AA
6DS1111-8AA
6DS1111-8AB
6DS1111-8AC
6DS1112-8AA
6DS1113-8AA
6DS1113-8BA
6DS1114-8AA
6DS1115-8AA
6DS1116-8BA
6DS1117-8AA
6DS1118-8AA
6DS1120-8BA
6DS1121-8AA
6DS1121-8BB
6DS1122-8AA
6DS1132-8CA
6DS1140-8AA
6DS1142-8AA
6DS1143-8AA
6DS1144-8AA
6DS1200-8AB
6DS1200-8AC
6DS1200-8BA
6DS1201-8AB
6DS1202-8AB
6DS1206-8AA
6DS1211-8AA
6DS1212-8AB
6DS1213-8AA
6DS1220-8AA
6DS1220-8AB
6DS1222-8AA
6DS1222-8AB
6DS1222-8BA
6DS1223-8AA
6DS1223-8AB
6DS1223-8AC
6DS1224-8AA
6DS1300-8AA
6DS1300-8AB
6DS1302-8AB
6DS1304-8AA
6DS1307-8AB
6DS1308-8AA
6DS1308-8AB
6DS1308-8AC
6DS1311-8AA
6DS1311-8AB
6DS1311-8AE
6DS1312-8AB
6DS1312-8BB
6DS1313-8AB
6DS1314-8AA
6DS1314-8AB
6DS1315-8AB
6DS1315-8AC
6DS1315-8BB
6DS1318-8AB
6DS1320-8AA
6DS1321-8AA
6DS1322-8AA
6DS1322-8BA
6DS1324-8AA
6DS1326-8AA
6DS1326-8BB
6DS1327-8AA
6DS1328-8AA
6DS1330-8BA
6DS1330-8CA
6DS1332-8AA
6DS1332-8BB
6DS1333-8AB
6DS1341-1AD
6DS1400-8AA
6DS1400-8BA
6DS1401-8AA
6DS1401-8BA
6DS1402-8AA
6DS1402-8BA
6DS1403-8AA
6DS1403-8BA
6DS1403-8CA
6DS1403-8CB
6DS1408-8BA
6DS1408-8BB
6DS1410-8BB
6DS1411-8AA
6DS1411-8CC
6DS1411-8DD
6DS1411-8DE
6DS1411-8RR
6DS1412-8CC
6DS1412-8DD
6DS1412-8DE
6DS1412-8RR
6DS1501-8BA
6DS1503-8AA
6DS1511-8AA
6DS1600-8AA
6DS1601-8AA
6DS1601-8AC
6DS1601-8BA
6DS1602-8AA
6DS1602-8BA
6DS1603-8AA
6DS1603-8AB
6DS1603-8BA
6DS1603-8RR
6DS1604-8AA
6DS1605-8AA
6DS1605-8BA
6DS1606-8BA
6DS1607-8AB
6DS1613-8BB
6DS1614-8AA
6DS1618-8CA
6DS1621-8AA
6DS1700-8AA
6DS1700-8BA
6DS1701-8AA
6DS1701-8AB
6DS1702-8AA
6DS1702-8RR
6DS1703-8AB
6DS1703-8RR
6DS1706-8AA
6DS1708-8AA
6DS1712-8BA
6DS1714-8AA
6DS1714-8BA
6DS1715-8BB
6DS1715-8CC
6DS1717-8AA
6DS1717-8CC
6DS1717-8RR
6DS1719-8AA
6DS1720-8AA
6DS1722-8AA
6DS1722-8BA
6DS1722-8BB
6DS1722-8RR
6DS1723-8AL
6DS1723-8BA
6DS1723-8BB
6DS1723-8BL
6DS1725-8AA
6DS1730-8AA
6DS1731-8AA
6DS1731-8BA
6DS1731-8DC
6DS1731-8DD
6DS1731-8EA
6DS1731-8FA
6DS1731-8RR
6DS1801-8AA
6DS1801-8AD
6DS1801-8BA
6DS1801-8BD
6DS1802-8AA
6DS1810-8AD
6DS1811-8AD
6DS1812-8AC
6DS1814-8AC
6DS1815-8AC
6DS1822-8AA
6DS1823-8AA
6DS1824-8BA
6DS1827-8BD
6DS1831-8AB
6DS1831-8AC
6DS1832-8AA
6DS1837-8AA
6DS1837-8BA
6DS1837-8CA
6DS1837-8DA
6DS1837-8FA
6DS1844-8CA
6DS1844-8DA
6DS1844-8FA
6DS1901-8AA
6DS1908-8AA
6DS1912-8AA
6DS1914-8AA
6DS1916-8AA
6DS1922-8AA
6DS3303-8AA
6DS3305-8AA
6DS3316-8AA
6DS3321-8AA
6DS3423-1AX00
6DS3800-8AC
6DS3900-8AB
6DS3900-8AC
6DS3900-8AD
6DS4407-8AA
6DS4407-8BA
6DS4407-8CA
6DS4410-8AB
6DS4410-8DA
6DS4415-8AC
6DS4420-8AB
6DS4420-8BA
6DS4420-8BB
6DS4421-8BA
6DS4426-8AA
6DS8101-8AD
6DS8201-8AA
6DS8201-8MB
6DS8204-8SC
6DS9002-8BA
6DS9005-8AB
6DS9005-8AC
6DS9006-8AB
6DS9006-8BA
6DS9013-8AA
6DS9014-8AB
6DS9016-8CA
6DS9018-8BA
6DS9020-8AA
6DS9020-8BA
6DS9023-8CA
6DS9026-8AB
6DS9032-8CH
6DS9111-8AA
6DS9111-8BA
6DS9200-8AA
6DS9203-8DA
6DS9203-8EA
6DS9207-8AA
6DS9901-8BB
6DS9913-8AA
6DS9913-8EB
6DS9922-8BA
6DS9925-8AA
6DS9925-8AB
6DS9930-8AA
6DS9944-8AA
6DT2001-0AC
6DT2003-0AC
6DT2005-0AC
6EV3200-0DC
6EV4300-0CC
6EW1000-1BA
6EW1110-0AA
6EW1360-1AA
6EW1860-0AB
6EW1860-0AC
6EW1860-8AA
6FC9343-0AF
6FK5243-8AA
6FL5600-4AA10
6FP1706-0B
6FP1707-0B
6FP1711-0A
6FP1712-0A
6FP1715-0B
6FP2702-0A
6FP2902-8AB
6NG4207-8PS02
7KG2131-1ZN21-0AA0
7MH1704-8DA
7MJ1121-8AA
7MJ1222-8AA
7MJ1322-8AB
7NG1102-4AD42
7NG1103-4BD43
7NG1106-4DA43
7NG1204-4AD42-5RA3
7NG1205-4AD42-1KA8
7NG1206-4BD42-2RA3
7NG1206-4DD35-5RA3
7NG1900-4AD45-1
7NG1900-4BD42-1
7NG1903-4BD42-1
7TG2000-0/DD
7TJ1520-0/DE
7TL2515-0/BC
7TL2641-0/DD
7TL2702-0/HH
7TL3120-0/EF
7TL3910-0/CB-Z1
7TL5213-0/FF
7TM5300-0/BB
7TM5317/FF
7TN3523-4H/HQ
7TN3923-2/HH
7TN9045-1/BB
7TR3502-4/CB
7TR3503-0/BC
7TS1701-2/FH
7TS2711-2/FH
7TS3202-0/DE
7TS3300-0/CB
7TS3400-0/CC
7TT1511-2CA/CE
7TT3044-3/DD
8RM3490-2/BC
A5E00098837
C1379-Z
C71458-A4752-A2
C71458-A4753-A1
C71458-A4754-A1
C71458-A4755-A1
C71458-A6008-A13
C71458-A6097-A22
C71458-A6489-A11
C74103-A1900-A351
C74103-A2137-A33
C74451-A1614-A4
C74451-A1625-A1
C74451-A1629-A1
C74451-A1629-A11
C74451-A1629-A22
C74451-A1856-A11
C74451-A1856-B1
C74451-A1858-A1
C7451-Z1038-U10
C79195-A3205-A50
C79195-A3205-A51
C79195-A3205-A52
C79195-A3205-A53
C79195-A3205-A54
C79195-A3205-A55
C79451-21038-49
C79451-A3077-A1
C79451-A3111-B101
C79451-A3117-B65
C79451-A3117-B71
C79451-A3117-B73
C79451-A3125-A161
C79451-A3125-A3
C79451-A3125-B100
C79451-A3125-B101
C79451-A3171-A1
C79451-A3260-A16
C79451-A3260-A20
C79451-A3260-A25
C79451-A3260-A3
C79451-A3260-A30
C79451-A3260-A35
C79451-Z1038-U9
C79451-Z1359-U9
C79458-L1-A1
C79458-L13-A1
C79458-L13-A11
C79458-L138-A1
C79458-L139-A1
C79458-L14-A1
C79458-L140-A1
C79458-L141-A1
C79458-L142-A1
C79458-L143-A1
C79458-L144-A1
C79458-L145-A1
C79458-L147-A1
C79458-L148-A1
C79458-L17-A1
C79458-L2-A1
C79458-L4-A1
C79458-L419-A2
C79458-L420-A1
C79458-L422-A1
C79458-L437-B24
C79458-L442-B21
C79458-L442-B22
C79458-L445-B20
C79458-L445-B5
C79458-L445-B8
C79458-L5-A1
C79458-L6-A1
C79458-L7-A1
C79458-L701-A1
C79458-L702-A1
C79458-L703-A101
C79458-L703-A131
C79458-L703-A31
C79458-L71-A1
C79458-L72-A23
C79458-L72-A25
C79458-L76-A1
C79458-L78-A1
C79458-L79-A1
C79458-L8-A1
C79458-L85-A1
C79458-L85-A2
DCS100.124
M72120-U1190-0300
M72151-B4100
M72151-B4300
M72151-C4100
M72227-B1700
M74001-A8120
M74001-A8122-1
M74002-A8120
M74002-A8210
M74002-A8420
M74003-A162
M74003-A170
M74003-A172
M74003-A174
M74003-A3020-A1
M74003-A320
M74003-A330
M74003-A8131
M74003-A8152
M74003-A8162
M74003-A8171
M74003-A8181
M74003-A8320-A1
M74003-A8335
M74003-A8350
M74004-A110
M74004-A122
M74004-A124
M74004-A8110
M74004-A8131
M74005-A310
M74005-A8120
M74005-A8413
M74006-A130
M74007-A8110
M74007-A8510
Siemens eperm ST215