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The development of industrial production and technology is inseparable from the automatic control of PLC. PLC can be broadly understood as: centralized relay extension control cabinet. In actual production applications, PLC greatly saves the cost of industrial control and strengthens the concentration of equipment. Management and automatic control
1. From the perspective of the composition of the PLC, besides the CPU, memory and communication interfaces, what other interfaces are directly related to the industrial site? And explain its main functions.
(1) Input interface: accept the signal of the controlled device, and drive the internal circuit to turn on or off through the photoelectric coupling device and the input circuit.
(2) Output interface: The execution result of the program is output through the photoelectric coupling device and output component (relay, thyristor, transistor) of the output interface to control the on or off of the external load.
2. Which parts of the basic unit of a PLC are composed? What role does each play?
(1) CPU: The core component of PLC, directs the PLC to perform *** work. Such as accepting user programs and data, diagnosing, executing execution programs, etc.;
(2) Memory: storage system and user programs and data;
(3) I/O interface: the connecting part between the PLC and the controlled object on the industrial production site, which is used to receive the signal of the controlled device and output the execution result of the program;
(4) Communication interface: exchange information with monitors, printers and other devices through the communication interface;
(5) Power supply.
TS-507C
Berger Lahr M007.10S
Mitsubishi MC303D BN634A018G51
LC23A F140398A
Fanuc A16B-3200-0220/02A
Yoshikawa BKO-C1737-05
Indramat DKC02.1-040-7-FW mit FWR-ECODRV-SSE-03VRS-MS
Siemens 6FX1131-5BA01
Schaffner 3G3RV-PFI3018-SE
Modicon AS-B232-000
Mitsubishi CNC 320L MDT962B-1A BKO-NC6212
Siemens 6ES5458-7LA11
XT491
ZE4000-02
LF-330
Mitsubishi LC2B LC 2B F140484 M5100C-LC2
Siemens C79458-L3439-B885
Unotec NGEH-2415-970101T5
Yaskawa JANCD-MCP01 Rev. D02 DF9200650-C0
SEW BW200-005
050560-402401
Siemens 6AV3627-1NK00-0AX0
Mitsubishi MC446B-1 BN634A082G52A
Eltherm Elsat 1.2 n. TL5820-3052
02786-00-9-002432
Modicon AS-B235-001
CFG00-111/D1A4-253
MBB MOV1 275G-70-GA/6
Omega NS-LAM-061/OMS1000
Siemens 6FX1818-5BX01-3A
Primelko Visual Data DigitalView DV-7550
Okuma E4809-032-487
D2A43HZ/309K
Siemens 1LA5163-4AA71-Z
MDX61B0008-5A3-4-0T
Mitsubishi MC413-2
Greenhouse Wet Pad For Cooling System
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