The PLC programming language has obvious characteristics compared with the general computer language. It is different from the high-level language and the general assembly language. It is easy to write and easy to debug. At present, there is no programming language that is compatible with all manufacturers' products. For example, Mitsubishi's products have their own programming language company's products and also have their own language. But no matter what model of its programming language has the following characteristics of the graphical instruction structure: the program is expressed graphically, the instructions are composed of different graphical symbols, easy to understand and remember. The software developers of the system have compiled the independent computing functions required in industrial control into symbolic graphics, and the users combine these graphics according to their own needs and fill in the appropriate parameters. In the logic operation part, almost all manufacturers use a ladder diagram similar to the relay control circuit, which is easy to accept. For example, Siemens also uses the control system flow chart to represent it. It uses the binary logic component graphic symbols to express the control relationship, which is very straightforward. More complex arithmetic operations, timing counts, etc., are generally given to the ladder diagram or logic component diagram to give representation. Although the symbolicity is not as good as the logic operation part, it is also welcomed by the user. The explicit variable constant: the graphic symbol is equivalent to the operation code, and the operation is specified. Function, the operand is filled in by the user, such as variables and constants in etc.
Simplified program structure: The program structure is usually very simple, typically a block structure, different blocks perform different functions, so that the program debugger has a clear concept of the control function and control sequence of the entire program.
Simplify the application software generation process: use assembly language and high-level language to write programs, to complete editing, compiling and linking three processes, and use programming language, only need to edit a process, the rest is automatically completed by the system software, the entire editing process is in person Under the machine dialogue, users are not required to have advanced software design capabilities. Enhanced debugging means: Whether it is an assembler or a high-level language program debugging, it is a headache for editors, and the program debugging provides complete conditions, using the programmer, using and pressing buttons, display and internal editing on the programmer. , debugging, monitoring, etc., and with software support, diagnostics and debugging operations are very simple.
In short, the programming language is user-oriented, and does not require high-level knowledge for users, and does not require long-term specialized training.
Sterile Petri Dishes from YongYue medical carries a complete line of contact plates, sterile, square (with a grid) and absorbent pad Petri dishes, cell spreaders and spatulas. Please contact us if you need additional product specifications. Two of our most popular lab dish products are standard petri dish and 3 compartment petri plate.
Sterile Agar Petri Dish
YongYue® petri dishes are offered in a variety of shapes and sizes for your everyday research needs. YongYue® manufactures optically clear plastic petri dish which are precision-molded from biomedical grade polystyrene for Cell Culture. Dishes are packed in heavy-wall polyethylene sleeves to ensure product integrity. YongYue® petri dishes have many applications including cell culture, growing bacteria and growing yeast.
Clear plastic disposable petri dishes of standard depth (15mm). Supplied in sterile packs. Will deform on autoclaving. Triple Vented. Also suitable for the temporary housing of small invertebrates during collection, or for distributing small chemical samples in class.
Diameter: 90mm
Depth: 15mm
Pack of 20
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