AB 1756-L32CA PLC module
It is very convenient to control the system with PLC. This is because: first of all, the establishment of PLC control logic is a program, which replaces hardware wiring. Programming is more convenient than wiring, and changing the program is more convenient than changing the wiring!
Secondly, PLC hardware is highly integrated and has been integrated into various miniaturized modules. Moreover, these modules are matched and have been serialized and standardized. The modules required for various control systems are mostly supplied by * * * from PLC manufacturers and can be purchased on the market. Therefore, the hardware system configuration and construction are also very convenient.
Because of this, the word “can” is only available with programmable controllers. For software, its program can be compiled, and it is not difficult to compile. For hardware, its configuration is variable and easy to change.
(1) Convenient configuration: determine which PLC to use, which type, which module to use, and how many modules to use according to the needs of the control system. After confirmation, order and purchase from the market.
(2) Easy installation: PLC hardware is easy to install and assemble. The external wiring has a connector, which is simple to connect. When replacing the module after one connection, the connector can be installed on the new module without wiring. Do not connect any internal wires, just make some necessary DIP switch settings or software settings, and prepare user programs to work.
(3) Convenient programming: Although there are no actual relays, time relays and counters in PLC, these devices actually exist through the program (software) and system memory. The number is unimaginable for relay control system. Even for small PLCs, the number of internal relays can be counted in thousands, and the number of time relays and counts can also be counted in hundreds. Moreover, the contacts of these relays can be used * * times. There are so many internal logic devices in PLC that users can use them without any restrictions. Only the entry and exit points are considered. It doesn’t matter how much this internal access point is used. The number of control points of large PLC can reach more than 10000. How can there be such a large real system? If it is not enough, it can also be controlled online without any restrictions. The command system of PLC is also very rich, which can easily realize the control of various switching values and analog values. The PLC also has a memory area for storing data, which can store all the information to be saved in the control process In a word, because of the strong function of PLC, the restriction to play its role in the control system is not the PLC itself, but people’s imagination, or other supporting hardware facilities.
| A-B | 1746-OA8 |
| A-B | 1746-OB16 |
| A-B | 1746-OB16E |
| A-B | 1746-OV8 |
| A-B | 1746-OX8 |
| A-B | 1746-P2 |
| A-B | 1747-ASB |
| A-B | 1747-C10 |
| A-B | 1747-DCM |
| A-B | 1747-FC |
| A-B | 1747-KE |
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