6AV6542-0CA10-0AX0触摸屏
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面议
5069SERIAL-
6AV66440AA012AX0
6ES72142AD230XB8
上面两个程序中,输出Y3、计数器CTl02及内部通用继电器R0前面的逻辑条件均相同,仅仅是计数器CTl02所在语句位置发生了变化,而两段程序的运行结果就截然不同。这是因为CTl02对输出Y3的影响方式发生了变化。执行段程序时,将判断输出Y3的状态,再判断CTl02的状态,CTl02的状态变化只能在下一个扫描周期对Y3产生影响;而执行第二段程序时,将判断CTl02的状态,再判断输出Y3的状态,CTl02的状态变化将在该扫描周期直接影响Y3的状态。 从以上讨论可以得出,由于PLC采用"串行"工作方式,所以即使是同一元件,在梯形图中所处的位置不同,其工作状态也会有所不同,因此在利用梯形图进行控制程序编制时,应对控制任务进行充分分析,合理安排各编程元件的位置,才能够更为准确地实现控制。 三、PLC的编程元件 PLC的各种功能主要是通过运行控制程序来实现。
IPC277D Siemens 6AV7881-2AE00-3DG0 Simatic 6AV7 881-2AE00-3DG0 Nanopanel 9" HMI
IPC277D Siemens 6AV7881-2AE00-3DG0 Simatic 6AV7 881-2AE00-3DG0 Nanopanel 9" HMI
SIEMENS 6AV7 892-0FE10-1AB0 - -
SIEMENS 6AV7 892-0FE10-1AB0 - -
Siemens 6AV7240-3BC04-0HA0 Simatic IPC477D 6AV7 240-3BC04-0HA0 Ipc 477D Pannello
Siemens 6AV7240-3BC04-0HA0 Simatic IPC477D 6AV7 240-3BC04-0HA0 Ipc 477D Pannello
Siemens 6AV7240-3EC04-0HA0 Simatic IPC477D 6AV7 240-3EC04-0HA0 Ipc 477D Pannello
Siemens 6AV7240-3EC04-0HA0 Simatic IPC477D 6AV7 240-3EC04-0HA0 Ipc 477D Pannello
Siemens 6AV7462-0AC30-0BK0 Simatic Panel PC 677 15 " Touch 6AV7 462-0AC30-0BK0
Siemens 6AV7462-0AC30-0BK0 Simatic Panel PC 677 15 " Touch 6AV7 462-0AC30-0BK0
Siemens 6AV7462-0AC30-0BK0 Simatic Panel PC 677 15 " Touch 6AV7 462-0AC30-0BK0
Siemens 6AV7462-0AC30-0BK0 Simatic Panel PC 677 15 " Touch 6AV7 462-0AC30-0BK0
Siemens 6AV7462-1AC30-1BK0 Simatic Panel PC 677B 6AV7 462-1AC30-1BK0
Siemens 6AV7462-1AC30-1BK0 Simatic Panel PC 677B 6AV7 462-1AC30-1BK0
Siemens 6AV7501-0BA00-0AF0 PC il 70 6AV7 501-0BA00-0AF0
Siemens 6AV7501-0BA00-0AF0 PC il 70 6AV7 501-0BA00-0AF0
Siemens 6AV7614-0AF32-0AG0 6AV7 614-0AF32-0AG0 Touch Panel PC 670
Siemens 6AV7614-0AF32-0AG0 6AV7 614-0AF32-0AG0 Touch Panel PC 670
Siemens 6AV7660-5DA00-0AT0 OEM FI45 Mc Touch 6AV7 660-5DA00-0AT0
Siemens 6AV7660-5DA00-0AT0 OEM FI45 Mc Touch 6AV7 660-5DA00-0AT0
Siemens 6AV7660-5DA00-0AT0 OEM FI45 Mc Touch 6AV7 660-5DA00-0AT0
Siemens 6AV7660-5DA00-0AT0 OEM FI45 Mc Touch 6AV7 660-5DA00-0AT0
Siemens 6AV7660-5DB00-2AT1 FI45-V2LS120 6AV7 660-5DB00-2AT1
Siemens 6AV7660-5DB00-2AT1 FI45-V2LS120 6AV7 660-5DB00-2AT1
Siemens 6AV7660-5DB00-2AT1 FI45-V2LS120 6AV7 660-5DB00-2AT1
Siemens 6AV7660-5DB00-2AT1 FI45-V2LS120 6AV7 660-5DB00-2AT1
Siemens 6AV7660-5DB00-2AT1 FI45-V2LS120 6AV7 660-5DB00-2AT1
Siemens 6AV7660-5DB00-2AT1 FI45-V2LS120 6AV7 660-5DB00-2AT1
Siemens 6AV7672-1CE00-0AA0 1stk. Protective Film 19 6AV7 672-1CE00-0AA0
Siemens 6AV7672-1CE00-0AA0 1stk. Protective Film 19 6AV7 672-1CE00-0AA0
Siemens 6AV7674-0NE00-0AA00 Inox board for Simatic 6AV7 674-0NE00-0AA00
Siemens 6AV7674-0NE00-0AA00 Inox board for Simatic 6AV7 674-0NE00-0AA00
Siemens 6AV7714-1DC42-0AD0 PC870 Touch A5E00126822 6AV7 714-1DC42-0AD0
Siemens 6AV7714-1DC42-0AD0 PC870 Touch A5E00126822 6AV7 714-1DC42-0AD0
Siemens 6AV7725-1AC10-0AD0 Simatic Panel PC 670 6AV7 725-1AC10-0AD0
Siemens 6AV7725-1AC10-0AD0 Simatic Panel PC 670 6AV7 725-1AC10-0AD0
Siemens 6AV7725-1AC10-0AD0 Simatic Panel PC 670 6AV7 725-1AC10-0AD0
Siemens 6AV7725-1AC10-0AD0 Simatic Panel PC 670 6AV7 725-1AC10-0AD0
Siemens 6AV7725-1AC10-0AD0 Simatic Panel PC 670 6AV7 725-1AC10-0AD0
Siemens 6AV7725-1AC10-0AD0 Simatic Panel PC 670 6AV7 725-1AC10-0AD0
Siemens 6AV7725-1AC10-0AD0 Simatic Panel PC 670 6AV7 725-1AC10-0AD0
Siemens 6AV7725-1AC10-0AD0 Simatic Panel PC 670 6AV7 725-1AC10-0AD0
Siemens 6AV7725-3BC30-0AG0 PC670 6AV7 725-3BC30-0AG0
Siemens 6AV7725-3BC30-0AG0 PC670 6AV7 725-3BC30-0AG0
Siemens 6AV7745-3BC00-1AD0 PC870 6AV7 745-3BC00-1AD0
Siemens 6AV7745-3BC00-1AD0 PC870 6AV7 745-3BC00-1AD0
Siemens 6AV7745-3BC00-1AD0 PC870 6AV7 745-3BC00-1AD0
Siemens 6AV7745-3BC00-1AD0 PC870 6AV7 745-3BC00-1AD0
Siemens 6AV7764-0AA04-0AT0 15 " Touch 6AV7 764-0AA04-0AT0 A5E00156488
Siemens 6AV7764-0AA04-0AT0 15 " Touch 6AV7 764-0AA04-0AT0 A5E00156488
Siemens 6AV7802-0BC20-1AA0 6AV7 802-0BC20-1AA0
Siemens 6AV7802-0BC20-1AA0 6AV7 802-0BC20-1AA0
Siemens 6AV7802-0BC20-1AA0 6AV7 802-0BC20-1AA0
Siemens 6AV7802-0BC20-1AA0 6AV7 802-0BC20-1AA0
Siemens 6AV7802-1BA11-1AB0 PC 677 15 " Touch 6AV7 802-1BA11-1AB
Siemens 6AV7802-1BA11-1AB0 PC 677 15 " Touch 6AV7 802-1BA11-1AB
Siemens 6AV7802-1BA11-1AB0 PC 677 15 " Touch 6AV7 802-1BA11-1AB
Siemens 6AV7802-1BA11-1AB0 PC 677 15 " Touch 6AV7 802-1BA11-1AB
Siemens 6AV7802-1BA11-1AB0 PC 677 15" Touch 6AV7 802-1BA11-1AB
Siemens 6AV7802-1BA11-1AB0 PC 677 15" Touch 6AV7 802-1BA11-1AB
Siemens 6AV7804-0BA10-1AC0 PC 677 6AV7 804-0BA10-1AC0
Siemens 6AV7804-0BA10-1AC0 PC 677 6AV7 804-0BA10-1AC0
Siemens 6AV7804-0BA10-1AC0 PC 677 6AV7 804-0BA10-1AC0
Siemens 6AV7804-0BA10-1AC0 PC 677 6AV7 804-0BA10-1AC0
Siemens 6AV7835-0BA10-1CA0 PC 577B 6AV7 835-0BA10-1CA0
Siemens 6AV7835-0BA10-1CA0 PC 577B 6AV7 835-0BA10-1CA0
Siemens 6AV7835-0BA10-1CA0 PC 577B 6AV7 835-0BA10-1CA0
Siemens 6AV7835-0BA10-1CA0 PC 577B 6AV7 835-0BA10-1CA0
Siemens 6AV7835-0BA10-1CA0 PC 577B 6AV7 835-0BA10-1CA0
Siemens 6AV7835-0BA10-1CA0 PC 577B 6AV7 835-0BA10-1CA0
Siemens 6AV7835-0BA10-1CA0 PC 577B 6AV7 835-0BA10-1CA0
Siemens 6AV7835-0BA10-1CA0 PC 577B 6AV7 835-0BA10-1CA0
Siemens 6AV7835-0BA10-1CA0 PC 577B 6AV7 835-0BA10-1CA0
Siemens 6AV7835-0BA10-1CA0 PC 577B 6AV7 835-0BA10-1CA0
Siemens 6AV7861 2TB00 1AA0 Flat Panel 15 " Touch 6AV7 861 2TB00 1AA0
Siemens 6AV7861 2TB00 1AA0 Flat Panel 15 " Touch 6AV7 861 2TB00 1AA0