MOOG D136-001-007 controller
The input module of PLC is used to detect and receive the signal of the field input equipment, and convert the input signal into the low-voltage signal accepted by the PLC.
Selection of input signal type and voltage level There are three common signal types of switching input module: DC input, AC input and AC/DC input. The selection is generally based on the field input signal and the surrounding environment. The AC input module has reliable contact and is suitable for use in harsh environment with oil mist and dust; The delay time of the DC input module is short, and it can also be directly connected with the proximity switch, photoelectric switch and other electronic input devices. The switching value input module of PLC is classified as follows according to the voltage of input signal: DC 5V, 24V, 48V, 60V, etc; AC 110V, 220V, etc. The selection shall be based on the distance between the field input device and the input module. Generally, 5V, 12V and 24V are used for occasions with short transmission distance. For example, the distance of 5V input module shall not exceed 10m, and the module with higher voltage level shall be selected
(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 instruction 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.
| MOOG | D136-001-008 |
| MOOG | D136-001-008a |
| MOOG | D136-001-001 |
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