福建中立恒自动化设备有限公司
一、摘要 PLC是一种专门在工业环境下应用而设计的数字运算操作的电子装置。
它采用可以编制程序的存储器,用来在其内部存储执行逻辑运算、顺序运算、计时、计数和算术运算等操作的指令,并能通过数字式或模拟式的输入和输出,控制各种类型的机械或生产过程。PLC及其有关的外围设备都应按照易于与工业控制系统形成一个整体,易于扩展其功能的原则而设计。在工业生产的各个领域,机械加工企业为了提高生产效率,采用机械化流水作业的方式,对不同类型的零件分别组成的自动生产线。随着产品机型的更新换代,生产线承担的加工对象也随之改变,这就需要改变控制程序,使生产线的机械设备按新的工艺过程运行,而继电接触器控制器系统是采用固定接线,很难适应这个要求。大型自动生产线的控制系统使用的继电器数量很多,随着PLC的应用日益普及,其使用方法简单,便于掌握,且可靠性,抗干扰性很强,自身具有完善的功能.模块化的结构,使其在工业生产线上的应用越来越广泛。
发展趋势:1.向高速度、大容量方向发展
为了提高PLC的处理能力,要求PLC具有的响应速度和更大的存储容量。目前,有的PLC的扫描速度可达0.1ms/k步左右。PLC的扫描速度已成为很重要的一个性能指标。
在存储容量方面,有的PLC可达几十兆字节。为了扩大存储容量,有的公司已使用了磁泡存储器或硬盘。
2.向超大型、超小型两个方向发展
当前中小型PLC比较多,为了适应市场的多种需要,今后PLC要向多品种方向发展,特别是向超大型和超小型两个方向发展。现已有I/O点数达14336点的超大型PLC,其使用32位微处理器,多CPU并行工作和大容量存储器,功能强。
231-0320-00 PC BOARD 231032000
231-0320-00 PC BOARD 231032000
231-0320-00 PC BOARD 231032000
231-0320-00 PC BOARD 231032000
240 VDC ALARM PCB ASSY 601751 PCA 1751-0009 10 KVA
240 VDC ALARM PCB ASSY 601751 PCA 1751-0009 10 KVA
2413 Japanese Yanagiba Knife - SAKAI TAKAYUKI - Uzushio Serie - Damascus white S
2413 Japanese Yanagiba Knife - SAKAI TAKAYUKI - Uzushio Serie - Damascus white S
2413 Japanese Yanagiba Knife - SAKAI TAKAYUKI - Uzushio Serie - Damascus white S
2413 Japanese Yanagiba Knife - SAKAI TAKAYUKI - Uzushio Serie - Damascus white S
2493-0216 PCA DISPLAY BOARD 2493-0208 24930216
2493-0216 PCA DISPLAY BOARD 2493-0208 24930216
280-3 CIRCUIT BOARD REV 03 FREQ'Y 3.68656 MHZ PCB280-3 2803
280-3 CIRCUIT BOARD REV 03 FREQ'Y 3.68656 MHZ PCB280-3 2803
280-3 CIRCUIT BOARD REV 03 FREQ'Y 3.68656 MHZ PCB280-3 2803
280-3 CIRCUIT BOARD REV 03 FREQ'Y 3.68656 MHZ PCB280-3 2803
30002650-B CIRCUIT BOARD 110042-8933 AMP-8931C 745104-1 KEMP10
30002650-B CIRCUIT BOARD 110042-8933 AMP-8931C 745104-1 KEMP10
30002650-B CIRCUIT BOARD 110042-8933 AMP-8931C 745104-1 KEMP10
30002650-B CIRCUIT BOARD 110042-8933 AMP-8931C 745104-1 KEMP10
30005750 CIRCUIT BOARD
30005750 CIRCUIT BOARD
3043-PPD206F PEAK TO PEAK DETECTOR BOARD 3043PPD206F
3043-PPD206F PEAK TO PEAK DETECTOR BOARD 3043PPD206F
31.048-2000.2 PCB MODULE B/01 AT&S VBP2-AL
31.048-2000.2 PCB MODULE B/01 AT&S VBP2-AL
32 SLOT I/O CARD PC2733 W/ PC8197 BOARD AND CABLE
32 SLOT I/O CARD PC2733 W/ PC8197 BOARD AND CABLE
320240A REV. B DISPLAY WITH BOARD
320240A REV. B DISPLAY WITH BOARD
3377228 SHOT COUNTER CIRCUIT BOARD
3377228 SHOT COUNTER CIRCUIT BOARD
3377228 SHOT COUNTER CIRCUIT BOARD
3377228 SHOT COUNTER CIRCUIT BOARD
3377228 SHOT COUNTER CIRCUIT BOARD
3377228 SHOT COUNTER CIRCUIT BOARD
372391044 TRANSCEIVER PCB 372310506
372391044 TRANSCEIVER PCB 372310506
372391044 TRANSCEIVER PCB 372310506
372391044 TRANSCEIVER PCB 372310506
3AC PCB ID: 7700-1301-1404 LOT OF 3 / FAST BY DHL / FEDEX
3AC PCB ID: 7700-1301-1404 LOT OF 3 / FAST BY DHL / FEDEX
3AG LED PCB CARD 7700-0401-1402
3AG LED PCB CARD 7700-0401-1402
3B-3 PCB ID: 7700-0201-1402 / FAST BY DHL / FEDEX
3B-3 PCB ID: 7700-0201-1402 / FAST BY DHL / FEDEX
3B-3 PCB ID: 7700-0201-1402 / FAST BY DHL / FEDEX
3B-3 PCB ID: 7700-0201-1402 / FAST BY DHL / FEDEX
3COM 3C900B ETHERLINK XL PCI NETWORK ADAPTER CARD 03-0148-000
3COM 3C900B ETHERLINK XL PCI NETWORK ADAPTER CARD 03-0148-000
3COM 94V-0 PC BOARD 94V0
3COM 94V-0 PC BOARD 94V0
3COM CORP. 02608C-EE086E PC BOARD ASSY. 0111-03 REV.F 02608CEE086E 011103
3COM CORP. 02608C-EE086E PC BOARD ASSY. 0111-03 REV.F 02608CEE086E 011103
3J PCB CARD 7700-1501-1404 / FAST SHIP DHL OR FEDEX
3J PCB CARD 7700-1501-1404 / FAST SHIP DHL OR FEDEX
3J PCB CARD 7700-1501-1404 / FAST SHIP DHL OR FEDEX
3J PCB CARD 7700-1501-1404 / FAST SHIP DHL OR FEDEX
3L PCB 7700-0401-1401 / FAST SHIP DHL OR FEDEX
3L PCB 7700-0401-1401 / FAST SHIP DHL OR FEDEX
3M PCB 7700 1301 1401 / FAST SHIP DHL OR FEDEX
3M PCB 7700 1301 1401 / FAST SHIP DHL OR FEDEX
3S PCB CARD 7700-1501-1401 / FAST SHIP DHL OR FEDEX
3S PCB CARD 7700-1501-1401 / FAST SHIP DHL OR FEDEX
3S PCB CARD 7700-1501-1401 / FAST SHIP DHL OR FEDEX
3S PCB CARD 7700-1501-1401 / FAST SHIP DHL OR FEDEX
3S PCB CARD 7700-1501-1401 / FAST SHIP DHL OR FEDEX
3S PCB CARD 7700-1501-1401 / FAST SHIP DHL OR FEDEX
3S PCB CARD 7700-1501-1401 / FAST SHIP DHL OR FEDEX
3S PCB CARD 7700-1501-1401 / FAST SHIP DHL OR FEDEX
3T-2 PCB CARD 7700-0801-1402
3T-2 PCB CARD 7700-0801-1402
3V-1 PCB 7700-1201-1404 / FAST BY DHL / FEDEX
3V-1 PCB 7700-1201-1404 / FAST BY DHL / FEDEX
3V-1 PCB 7700-1201-1404 / FAST BY DHL / FEDEX
3V-1 PCB 7700-1201-1404 / FAST BY DHL / FEDEX
3W PCB CARD 7700-1001-1401
3W PCB CARD 7700-1001-1401
3Z PCB CIRCUIT BOARD 7700-1301-1416 / FAST SHIP DHL OR FEDEX
3Z PCB CIRCUIT BOARD 7700-1301-1416 / FAST SHIP DHL OR FEDEX
3Z PCB CIRCUIT BOARD 7700-1301-1416 / FAST SHIP DHL OR FEDEX
3Z PCB CIRCUIT BOARD 7700-1301-1416 / FAST SHIP DHL OR FEDEX
3Z PCB Circular Plate 7700-1301-1416
3Z PCB Circular Plate 7700-1301-1416
4 NORDSON 274658C PMI BOARDS
4 NORDSON 274658C PMI BOARDS
400011-K BOARD
400011-K BOARD
400011-K BOARD
400011-K BOARD
400011-K BOARD
400011-K BOARD
400-246 SMOKE BOARD 400246
400-246 SMOKE BOARD 400246
400-246 SMOKE BOARD 400246
400-246 SMOKE BOARD 400246
4022 770 2810 MEM BOARD CARD 4022 106 2810
4022 770 2810 MEM BOARD CARD 4022 106 2810
4022 770 2810 MEM BOARD CARD 4022 106 2810
4022 770 2810 MEM BOARD CARD 4022 106 2810
4022 770 2810 MEM BOARD CARD 4022 106 2810
4022 770 2810 MEM BOARD CARD 4022 106 2810
44119 CIRCUIT BOARD
44119 CIRCUIT BOARD
44122 CIRCUIT BOARD
44122 CIRCUIT BOARD
44122 CIRCUIT BOARD
44122 CIRCUIT BOARD
4530072 PCB CARD 3701 REV 6
4530072 PCB CARD 3701 REV 6
4530072 PCB CARD 3701 REV 6
4530072 PCB CARD 3701 REV 6
4770051 CIRCUIT BOARD IPSO 3703H02
4770051 CIRCUIT BOARD IPSO 3703H02
48-20640 CIRCUIT BOARD 90-20640 4820640
48-20640 CIRCUIT BOARD 90-20640 4820640
500202 CIRCUIT BOARD REV A
500202 CIRCUIT BOARD REV A
5340-144 BOARD 5340144
5340-144 BOARD 5340144
5401906 PCB SM 1/0 P800-1022 BOARD
5401906 PCB SM 1/0 P800-1022 BOARD
5401906 PCB SM 1/0 P800-1022 BOARD
5401906 PCB SM 1/0 P800-1022 BOARD
5401906 PCB SM 1/0 P800-1022 BOARD
5401906 PCB SM 1/0 P800-1022 BOARD
602004 CIRCUIT BOARD EOS 7 94V-0 0716 402203 X11-15297 00039-127-761-058
602004 CIRCUIT BOARD EOS 7 94V-0 0716 402203 X11-15297 00039-127-761-058
6902E201A052 PCB CARD
6902E201A052 PCB CARD
7499E CIRCUIT BOARD REV 6
7499E CIRCUIT BOARD REV 6
231-0320-00 PC BOARD 231032000
231-0320-00 PC BOARD 231032000
231-0320-00 PC BOARD 231032000
231-0320-00 PC BOARD 231032000
240 VDC ALARM PCB ASSY 601751 PCA 1751-0009 10 KVA
240 VDC ALARM PCB ASSY 601751 PCA 1751-0009 10 KVA
2413 Japanese Yanagiba Knife - SAKAI TAKAYUKI - Uzushio Serie - Damascus white S
2413 Japanese Yanagiba Knife - SAKAI TAKAYUKI - Uzushio Serie - Damascus white S
2413 Japanese Yanagiba Knife - SAKAI TAKAYUKI - Uzushio Serie - Damascus white S
2413 Japanese Yanagiba Knife - SAKAI TAKAYUKI - Uzushio Serie - Damascus white S
2493-0216 PCA DISPLAY BOARD 2493-0208 24930216
2493-0216 PCA DISPLAY BOARD 2493-0208 24930216
280-3 CIRCUIT BOARD REV 03 FREQ'Y 3.68656 MHZ PCB280-3 2803
280-3 CIRCUIT BOARD REV 03 FREQ'Y 3.68656 MHZ PCB280-3 2803
280-3 CIRCUIT BOARD REV 03 FREQ'Y 3.68656 MHZ PCB280-3 2803
280-3 CIRCUIT BOARD REV 03 FREQ'Y 3.68656 MHZ PCB280-3 2803
30002650-B CIRCUIT BOARD 110042-8933 AMP-8931C 745104-1 KEMP10
30002650-B CIRCUIT BOARD 110042-8933 AMP-8931C 745104-1 KEMP10
30002650-B CIRCUIT BOARD 110042-8933 AMP-8931C 745104-1 KEMP10
30002650-B CIRCUIT BOARD 110042-8933 AMP-8931C 745104-1 KEMP10
30005750 CIRCUIT BOARD
30005750 CIRCUIT BOARD
3043-PPD206F PEAK TO PEAK DETECTOR BOARD 3043PPD206F
3043-PPD206F PEAK TO PEAK DETECTOR BOARD 3043PPD206F
31.048-2000.2 PCB MODULE B/01 AT&S VBP2-AL
31.048-2000.2 PCB MODULE B/01 AT&S VBP2-AL
32 SLOT I/O CARD PC2733 W/ PC8197 BOARD AND CABLE
32 SLOT I/O CARD PC2733 W/ PC8197 BOARD AND CABLE
320240A REV. B DISPLAY WITH BOARD
320240A REV. B DISPLAY WITH BOARD
3377228 SHOT COUNTER CIRCUIT BOARD
3377228 SHOT COUNTER CIRCUIT BOARD
3377228 SHOT COUNTER CIRCUIT BOARD
3377228 SHOT COUNTER CIRCUIT BOARD
3377228 SHOT COUNTER CIRCUIT BOARD
3377228 SHOT COUNTER CIRCUIT BOARD
372391044 TRANSCEIVER PCB 372310506
372391044 TRANSCEIVER PCB 372310506
372391044 TRANSCEIVER PCB 372310506
372391044 TRANSCEIVER PCB 372310506
3AC PCB ID: 7700-1301-1404 LOT OF 3 / FAST BY DHL / FEDEX
3AC PCB ID: 7700-1301-1404 LOT OF 3 / FAST BY DHL / FEDEX
3AG LED PCB CARD 7700-0401-1402
3AG LED PCB CARD 7700-0401-1402
3B-3 PCB ID: 7700-0201-1402 / FAST BY DHL / FEDEX
3B-3 PCB ID: 7700-0201-1402 / FAST BY DHL / FEDEX
3B-3 PCB ID: 7700-0201-1402 / FAST BY DHL / FEDEX
3B-3 PCB ID: 7700-0201-1402 / FAST BY DHL / FEDEX
3COM 3C900B ETHERLINK XL PCI NETWORK ADAPTER CARD 03-0148-000
3COM 3C900B ETHERLINK XL PCI NETWORK ADAPTER CARD 03-0148-000
3COM 94V-0 PC BOARD 94V0
3COM 94V-0 PC BOARD 94V0
3COM CORP. 02608C-EE086E PC BOARD ASSY. 0111-03 REV.F 02608CEE086E 011103
3COM CORP. 02608C-EE086E PC BOARD ASSY. 0111-03 REV.F 02608CEE086E 011103
3J PCB CARD 7700-1501-1404 / FAST SHIP DHL OR FEDEX
3J PCB CARD 7700-1501-1404 / FAST SHIP DHL OR FEDEX
3J PCB CARD 7700-1501-1404 / FAST SHIP DHL OR FEDEX
3J PCB CARD 7700-1501-1404 / FAST SHIP DHL OR FEDEX
3L PCB 7700-0401-1401 / FAST SHIP DHL OR FEDEX
3L PCB 7700-0401-1401 / FAST SHIP DHL OR FEDEX
3M PCB 7700 1301 1401 / FAST SHIP DHL OR FEDEX
3M PCB 7700 1301 1401 / FAST SHIP DHL OR FEDEX
3S PCB CARD 7700-1501-1401 / FAST SHIP DHL OR FEDEX
3S PCB CARD 7700-1501-1401 / FAST SHIP DHL OR FEDEX
3S PCB CARD 7700-1501-1401 / FAST SHIP DHL OR FEDEX
3S PCB CARD 7700-1501-1401 / FAST SHIP DHL OR FEDEX
3S PCB CARD 7700-1501-1401 / FAST SHIP DHL OR FEDEX
3S PCB CARD 7700-1501-1401 / FAST SHIP DHL OR FEDEX
3S PCB CARD 7700-1501-1401 / FAST SHIP DHL OR FEDEX
3S PCB CARD 7700-1501-1401 / FAST SHIP DHL OR FEDEX
3T-2 PCB CARD 7700-0801-1402
3T-2 PCB CARD 7700-0801-1402
3V-1 PCB 7700-1201-1404 / FAST BY DHL / FEDEX
3V-1 PCB 7700-1201-1404 / FAST BY DHL / FEDEX
3V-1 PCB 7700-1201-1404 / FAST BY DHL / FEDEX
3V-1 PCB 7700-1201-1404 / FAST BY DHL / FEDEX
3W PCB CARD 7700-1001-1401
3W PCB CARD 7700-1001-1401
3Z PCB CIRCUIT BOARD 7700-1301-1416 / FAST SHIP DHL OR FEDEX
3Z PCB CIRCUIT BOARD 7700-1301-1416 / FAST SHIP DHL OR FEDEX
3Z PCB CIRCUIT BOARD 7700-1301-1416 / FAST SHIP DHL OR FEDEX
3Z PCB CIRCUIT BOARD 7700-1301-1416 / FAST SHIP DHL OR FEDEX
3Z PCB Circular Plate 7700-1301-1416
3Z PCB Circular Plate 7700-1301-1416
4 NORDSON 274658C PMI BOARDS
4 NORDSON 274658C PMI BOARDS
400011-K BOARD
400011-K BOARD
400011-K BOARD
400011-K BOARD
400011-K BOARD
400011-K BOARD
400-246 SMOKE BOARD 400246
400-246 SMOKE BOARD 400246
400-246 SMOKE BOARD 400246
400-246 SMOKE BOARD 400246
4022 770 2810 MEM BOARD CARD 4022 106 2810
4022 770 2810 MEM BOARD CARD 4022 106 2810
4022 770 2810 MEM BOARD CARD 4022 106 2810
4022 770 2810 MEM BOARD CARD 4022 106 2810
4022 770 2810 MEM BOARD CARD 4022 106 2810
4022 770 2810 MEM BOARD CARD 4022 106 2810
44119 CIRCUIT BOARD
44119 CIRCUIT BOARD
44122 CIRCUIT BOARD
44122 CIRCUIT BOARD
44122 CIRCUIT BOARD
44122 CIRCUIT BOARD
4530072 PCB CARD 3701 REV 6
4530072 PCB CARD 3701 REV 6
4530072 PCB CARD 3701 REV 6
4530072 PCB CARD 3701 REV 6
4770051 CIRCUIT BOARD IPSO 3703H02
4770051 CIRCUIT BOARD IPSO 3703H02
48-20640 CIRCUIT BOARD 90-20640 4820640
48-20640 CIRCUIT BOARD 90-20640 4820640
500202 CIRCUIT BOARD REV A
500202 CIRCUIT BOARD REV A
5340-144 BOARD 5340144
5340-144 BOARD 5340144
5401906 PCB SM 1/0 P800-1022 BOARD
5401906 PCB SM 1/0 P800-1022 BOARD
5401906 PCB SM 1/0 P800-1022 BOARD
5401906 PCB SM 1/0 P800-1022 BOARD
5401906 PCB SM 1/0 P800-1022 BOARD
5401906 PCB SM 1/0 P800-1022 BOARD
602004 CIRCUIT BOARD EOS 7 94V-0 0716 402203 X11-15297 00039-127-761-058
602004 CIRCUIT BOARD EOS 7 94V-0 0716 402203 X11-15297 00039-127-761-058
6902E201A052 PCB CARD
6902E201A052 PCB CARD
7499E CIRCUIT BOARD REV 6
7499E CIRCUIT BOARD REV 6