PLC programming languages and computer languages, have distinctive features, which is different from a high-level language, and with the General Assembly, it is both easier to write, and to meet the requirement to debug. At present, there is no programming language to the manufacturers of products are compatible. If Mitsubishi products has its own programming … Continue reading Basic instruction of PLC and characteristics
Siemens PLC data type and address
In the following example to MD1,MD34 to MD2 MD30 (see the following figure). I entered in the simulation at MD1 30.0, press ENTER to appear 11.8953. I have no problem to do it by the book addresses. I would like to ask this MD30 into MD1,MD34 to MD2 relationship? These can literally change the address? Here … Continue reading Siemens PLC data type and address
STEP7 common shortcut keys
CTRL + l downloadCTRL + d module informationCTRL+i modeCTRL + ALT + r reference dataALT + entre object propertiesF2 normally open contactF3 normally closed contactF7 coilCTRL + r to insert segmentsALT +F9 inserted into the empty boxCTRL+1 LAD ladder diagramCTRL+2 STL STLCTRL+3 FBD function block diagramCTRL +Q symbolic expressionsCTRL +SHIFT +Q symbol informationCTRL +ALT +T … Continue reading STEP7 common shortcut keys
Setting the S7-300 address register address
OPN DB100L 0LAR1L 3500ITD RLD 3+AR1 L DBW [AR1, P#0.0] //Read DB100.DBW3500But after the address >4095, with 4096 values RLD 3 is greater than or equal to the value of 32768Error value in the AR1 (great value).So that there are 3 to the left has been unable to obtain the correct address.Ask you what other … Continue reading Setting the S7-300 address register address
Siemens RCV/XMT order questions and answers
S7-200 communication ports can be set to free port mode of the CPU. Freedom of choice of mode, the operation of the user program can completely control a communications port, communications protocols are completely controlled by the user program.S7-200 communication port on the CPU in the electrical RS-485 is standard on half-duplex serial communications port. … Continue reading Siemens RCV/XMT order questions and answers
Mitsubishi PLC classified
Mitsubishi MELSEC series can be divided into small and large series. Small series for the FX series maximum 256 I/O points, large series I/O points up to 8,192 points, and has a rich network of Q, QnA series and a-series. Among them, the Q-Series high performance CPU will not only have access to Q-Series modules, … Continue reading Mitsubishi PLC classified
PLC Mitsubishi MELSEC Q Series key features
(1) a wealth of modelsQ Series PLC I/O points from 256 to 8,192 points (including remote I/O), the program step number from 8K to 252K of various CPU models, can be divided into basic and higher functions in 2 categories. (2) ultra-small sizeQ Series PLC LSI with advanced BGA technology ASIC,8-layer PCB (printed circuit board) 1mm … Continue reading PLC Mitsubishi MELSEC Q Series key features
Mitsubishi PLC’s special features
(1) event interruptsModules and intelligent modules that are part of the network, you can interrupt requests to the CPU module. CPU module to use this feature, for programs and events of the scans are not synchronized (for example, network modules receive the specified data) will be able to make rapid responses. This way, you can … Continue reading Mitsubishi PLC’s special features
Mitsubishi Q Series PLC power supply module
Power supply modules installed on a base plate, each module provides 5 v DC power supply. The installed power supply module model depending on the substrate. In the Q Series PLC Q3 or Q6-b-b, Q61P-A-Q6-p power supply module can be used; in the AnS series QAIS6-b on an extended base plate, you can use the … Continue reading Mitsubishi Q Series PLC power supply module
Mitsubishi Q Series PLC input/output module characteristics
Q Series input/output module with the following features: 1. Ultra Compact Q Series input/output module is the world's smallest input/output module, its volume for long 90mmx wide and 27. 4mmx 98mm. 2. Multifunction 1) DC input module can change the input time constant (1/5/10/20/70mm), set by GX Developer software. When used according to interference and response time requirements to … Continue reading Mitsubishi Q Series PLC input/output module characteristics
PLC ONE 