Jun 01, 2021 Processor Module
The processor module is the heart of the controller, built around a processor, and it is responsible for the execution of the memory-resident control instructions, which are based on the automation strategy. The module operates on functional modules for data acquisition and control.
The processor module has a built-in clock through which the processor derives all the necessary clocking and timing functions for synchronizing its own activities, including keeping track of the time of the day. The processor also uses the clock signals to externally synchronize the data exchange activities on the bus with the other functional modules placed on the bus. The bus interfacing electronics are located on the top portion of the processor module.
Processor Module is available through Quick Time Engineering Inc.
Terminal Block
A terminal block (also called as connection terminal or terminal connector) is a modular block with an insulated frame that secures two or more wires together. It consists of a clamping component and a conducting strip. A typical simplest terminal block is as shown in the image below. The insulating body of a terminal block houses a current-carrying element (a metal strip or terminal bar). It also provides a base for clamping element. The body has a mounting arrangement so that the block can be easily mounted on or unmounted from a PCB or a mounting rail. Most terminal blocks are usually modular and mounted on DIN rail. That allows us to increase the number of terminals according to the requirements. Terminal blocks keep connections much more secure and wire well organized.
Electrical terminal blocks can be classified on the basis of structure, device type, termination options etc. For classification of structure, there are three types of terminal block, single-level pass-through terminal blocks, dual-level terminal blocks, three-level terminal blocks. Single level pass-through terminal blocks are used to connect two wires together. These are also called single feed terminal blocks. These have one input contact and one output contact. Dual-level terminal blocks on the other hand have another level of connection terminal stacked on the first one. This arrangement is generally used to save space. Three-level terminal blocks have an extra level on top of two level of connection terminal.
For the classification of the device, there are six types of terminal blocks, ground terminal blocks, fused connection terminals, thermocouple terminal blocks, I/O blocks and sensor blocks, disconnect terminal blocks and power distribution blocks. Ground terminal blocks often look like a single level feed-through terminals. The exception is that these blocks and the metal connection where the wire is terminated are grounded to the panel or DIN rail on which the block is mounted. Fused connection terminals are similar to the pass-through blocks with an exception of the metal connection strip is replaced with a fuse. Therefore, the wires will be connected through a fuse providing an added protection.
Thermocouple terminal blocks are designed to accept thermocouple lead connections. Some thermocouple connectors essentially clamp the thermocouple leads together on both sides of the block, eliminating the metal connection strip inside the block. However, in some thermocouple blocks, the metal connection strip of the same metal as that of the wire may be present. I/O blocks are used to make a connection between a device and a controller. Whereas, sensor blocks handle three or four-wire devices such as proximity sensors.
Besides, disconnect terminal blocks allow wires to be easily disconnected just by lifting a lever or knife switch. They can be used for convenient disconnection and connection without removing the wires. They are also known as switch blocks. Lastly, power distribution blocks are used in electrical power distribution. An electric power distribution terminal block is a convenient, economical and safer way to distribute power from a single input source to multiple outputs. One large wire is connected to the input terminal of the block and multiple output terminals are provided at the output. This way, wires are well arranged in a control panel giving it a neat, clean and professional look.
Terminal Block is available through Quick Time Engineering Inc.
Quick Time Engineering Inc is an international company with offices and distribution networks in the USA, Hong Kong, Europe and Malaysia.
In its 20 years of operation since 1998, Quick Time Engineering Inc had emerged from a local engineering company with a single staff that provided solutions in factory automation to become nowadays a company that serves the Oil & Gas industries, EPC contractors, System Integrators and other industrial automation and process control companies worldwide. Customers from over 50 countries worldwide trust us with their need for process control instruments and industrial automation products.
For more information about Quick Time Engineering Inc, visit www.quicktimeonline.com or email enquiry@quicktimeonline.com
