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一种PLC主机的三大组成部分组成
1、输入单元
输入单元由8个按扭、8个开关和16个接插件组成,它们分别与PLC的16个输入点相接。改变这些开关或按扭的通断状态,即可对主机输入所需要的开关量。16个接插件可外接其它直流或开关量输入信号。
2、输出单元
输出单元由24个二极管和24个接插件组成,它们分别与PLC的24个输出点相连。发光二极管是否发光,即可表示输出点的状态,使用者可得到主机的输出信息。24个输出接插件可外接其它需要控制的设备。输出单元的4个地端,分别引出到面板,其中只有C4与3V电源共地。
3、电源单元
PLC主机左边有外接220V/AV的电源插座,作为PLC的工作电源。内装变压器,输出3V电源,供二极管使用。另外PLC的24VDC和24GND已引出到面板,供外接输入器件(如传感器)的工作电源用.
SKF UNF HSS 1-3/8X6 ROUND DIE D542333
WIDIA-GTD 1IN 8 STEEL PIPE THEADING DIE D592668
1-5/8IN 8 STEEL PIPE THREADING DIE D592670
WILLIAMS 442 4IN FACE PIN SPANNER WRENCH D594281
THOMAS C WILSON 21913 1IN OD CHIPPPING HAMMER D594540
CHROMATE 3989 EXTENSION 7/16IN HEX 12IN D588056
HAVILAND 1430C GRAY NON-MARKING FLOOR SQUEEGEE 30IN D590603
UNIVERSAL UWSF18MM6-4 18MM SOCKET 6PT 3/4 IN DRIVE D537079
CS OSBORNE 149 LEATHER/GASKET MATERIAL 2-7/8 IN STEEL PUNCH D560997
BERGMAN NO 103 SAFETY SPANNER WRENCH 26 IN D569074
STANLEY 1248 PROTO 12-PT 1-1/2 IN COMBINATION WRENCH D567213
BERGMAN NO 103 SAFETY SPANNER WRENCH D568620
THOMAS C WILSON 25017-0001 7/8IN OD TUBE CUTTER D594543
UNIVERSAL UWSF18MM4-3 18MM SOCKET 6PT 1/2 IN DRIVE D537094
UNIVERSAL UWSF18MM4-3 18MM SOCKET 6PT 1/2 IN DRIVE D537528
CS OSBORNE 149 LEATHER/GASKET MATERIAL 2-3/8 IN STEEL PUNCH D561843
GREENLEE 438-10 80FT X 1/8IN STEEL FISH TAPE D573187
RIDGE TOOL RIDGID 37815 PIPE THREADING DIE SET 1/4IN NPT D592508
1-3/8IN U-BOLT CLAMP D592994
J.H. WILLIAMS 436 3-1/4IN FACE PIN SPANNER WRENCH D593996
WIDIA-GTD LITTLE GIANT PIPE RETHREADING DIE 3/8IN NC16 D593987
WILLIAMS 440 FACE PIN SPANNER WRENCH 3-1/2IN D594000
J.H. WILLIAMS 436 FACE PIN SPANNER WRENCH 3-1/4IN D593978
WILLIAMS 438 FACE PIN SPANNER WRENCH 3-1/2IN D593999
CHROMATE 520251 1-1/4-7 NC HEX DIE D594374
CHROMATE 20243 3/4-10 X 1-1/2 OD ADJUSTABLE ROUND PIPE THREADING DIE D594371
CHROMATE 20239 5/8-11 X 1-1/2 OD ADJUSTABLE ROUND PIPE THREADING DIE D594372
WIDELL 1-1/4-8 HEX PIPE RETHREADING DIE D594361
694683 1-1/2-7 HSS HEX PIPE RETHREADING DIE D594365
IMPERIAL HAND CLAMP TOOL D594443
THOMAS C WILSON 25018-0004 7/8IN OD TUBE CUTTER D594571
THOMAS C WILSON 25017-0004 7/8IN OD TUBE CUTTER D594575
DORMER F302 M14 14MM DIE NUT D542320
SPEARHEAD LEATHER/GASKET MATERIAL 1-7/8 IN STEEL PUNCH D560912
UNIVERSAL UWSF18MM6-4.25TN 18MM SOCKET 6PT 3/4 IN DRIVE D535339
UNIVERSAL UWSF18MM6-4 18MM SOCKET 6PT 3/4 IN DRIVE D535341
UNIVERSAL UWSF18MM6-4.25 SOCKET 6PT 3/4 IN DRIVE 18MM D535342
OPW NO 157 COLLET SPANNER WRENCHD592281
NICHOLSON 03980N 16IN FLAT BASTARD CUT METAL FILE D592276
CHROMATE 20347 7/8-9 X 2IN OD ADJUSTABLE ROUND PIPE THREADING DIE D594359
NICHOLSON 03980N 16IN FLAT BASTARD CUT METAL FILE D592276
CHROMATE 20347 7/8-9 X 2IN OD ADJUSTABLE ROUND PIPE THREADING DIE D594359
CHROMATE 524235 1-3/8- 6 HEX PIPE THREADING DIE D594387
HANSON 1-8 NC HEX PIPE RETHREADING DIE D594388
THOMAS C WILSON 25018-0001 7/8IN OD TUBE CUTTER D594544
WILLIAMS 440 FACE PIN SPANNER WRENCH 3-3/4IN D594742
REP-TECH SFE21MM6-5.5 21MM SOCKET 6PT 3/4 IN DRIVE D537101
UNIVERSAL SFE21MM6-5.5 SOCKET 6PT 3/4 IN DRIVE 21MM D537109
SFE21MM6-6TSQ 21MM SOCKET 6PT 3/4 IN DRIVE D537111
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