S7-200 CPU module provides 5VDC and 24VDC power supply:When an expansion module CPU through I / O bus to provide 5V power supply, all the expansion module 5V power consumption of the CPU and can not exceed the rated power provided. If not enough external 5V power supply. Each CPU has a 24VDC sensor power … Continue reading How Siemens S7-200 series PLC’s power requirements and calculation?
Tag: PLC control system
Three types of Siemens industrial control software introduction
Siemens industrial software is divided into three different categories:(1) programming and engineering tool for programming and engineering tool includes all PLC-based or PC for programming, configuration, simulation and control tools needed maintenance. STEP 7 standard package SIMATIC S7 for S7-300 / 400, C7 PLC and SIMATIC WinAC PC-based control product configuration programming and maintenance of … Continue reading Three types of Siemens industrial control software introduction
To simplify and write PLC ladder command statement table ladder program
After simplifying the ladderInstruction Statement Lista） LD 01600AND 00002LD-NOT 00001OR-LDAND 00000OUT 10000b）LD-NOT 00004AND 00005LD 10000AND 00006OR-LDAND 00003LD 00002AND 00004OR-LDAND 00001OUT 10000c）LD 10000AND 00003AND 00004OR 00001AND 00000LD 10000AND 00001LD 00003AND 00004OR-LDAND 00002OR-LDOUT 10000
SIEMENS S7-300 PLC CPU module component
S7-300 there are many different types of CPU, suitable for different levels of control. CPU module is integrated with the digital I/O, and integrated digital I/O and analog I/O.CPU component is packaged in a sturdy and compact plastic enclosure, Panel on the status and error indicator LED, mode selection switch and communication interfaces. Micro memory … Continue reading SIEMENS S7-300 PLC CPU module component
The difference between Simens PLC programming FB and FC
FB--function blocks, blocks with background dataFC--function, or functionThey Zhijian of main difference is: FC using of is shared data block, FB using of is background data block lift a example, if you to on 3 a parameter same of motor for control, so only need using FB programming plus 3 a background data block on … Continue reading The difference between Simens PLC programming FB and FC
FX3U PLC external sensor connection
PLC FX3U some columns may be NPN type or PNP type sensor and wiring simple.FX3U S/S on terminals, S/S by Terminal block of 24V and 0V terminals or terminal connected to leak, source input switch.Missing input: connect the 24V and S/S terminals-Source input: connect the 0V terminals and S/S TerminalBy choosing you can set the … Continue reading FX3U PLC external sensor connection
Mitsubishi PLC password settings
Passwords can limit set PLC programming tool, display module, interface to read and write procedures, monitoring, change the current values, and so on, to protect programs or restrict the operator's procedures for monitoring purposes.Mitsubishi FX series PLC password set way: will PLC power, and through programming cable and computer connection, in programming software GX-DEVELOPER in … Continue reading Mitsubishi PLC password settings
Design of PLC control system the main steps to be followed and the content
(1) technical analysisIn-depth understanding of process control object, features, requirements, and dividing control of all phases, summarized the various stages of, and between the various stages of transition conditions, draw the flowchart control flow chart or function. (2) select the appropriate PLC type When you select the PLC model, mainly consider the following points: 1 choice of functions. … Continue reading Design of PLC control system the main steps to be followed and the content
Design of PLC control system and debug steps
(A) analysis of controlled objects control requirements andDetailed analysis of control processes and characteristics about control of interaction between mechanical, electrical, fluid, made the control requires control of PLC control system, identification of programmes, development proposal.(B) determine the input/output devicesAccording to the system requirements, and determine all of the required input devices (such as push … Continue reading Design of PLC control system and debug steps
Design of PLC control system of the four cardinal principles
1 meet control requirements of the controlled object.2 in the premise of meeting the requirements to make simple, affordable, easy to use and maintenance of control system.3 ensure that the control system is safe and reliable.4 taking into account the development of the production and improvement of technology in select PLC capacity should be appropriate … Continue reading Design of PLC control system of the four cardinal principles
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