| Manufacture | ABB |
| Item No | TU844 |
| Article number | 3BSE021445R1 |
| Series | 800xA Control Systems |
| Origin | Sweden |
| Dimension | 73*233*212(mm) |
| Weight | 0.5kg |
| Customs Tariff Number | 85389091 |
| Type | Module Termination Unit |
The MTU distributes the two ModuleBuses, one to each I/O module and to the next MTU. It also generates the correct address to the I/O modules by shifting the outgoing position signals to the next MTU. The MTU can be mounted on a standard DIN rail. It has a mechanical latch that locks the MTU to the DIN rail. Four mechanical keys, two for each I/O module, are used to configure the MTU for different types of I/O modules. This is only a mechanical configuration and it does not affect the functionality of the MTU or the I/O module. Each key has six positions, which gives a total number of 36 different configurations.Frequently asked questions about the product are as follows: -What is the function of the ABB TU844 terminal unit? The ABB TU844 is a terminal unit used to interface field wiring with automation systems. It acts as a connection point for input and output signals, ensuring that the signals are properly transmitted and integrated into the control system. -What are the main applications of the TU844? The TU844 is used in large industrial automation systems, such as ABB's 800xA or S+ engineering platforms. It is essential for industries such as power generation, oil and gas, water treatment, and manufacturing. -How does the TU844 interact with other modules in the system? The TU844 connects to various input/output (I/O) modules, controllers, and other system components. It ensures that electrical signals from field devices are properly transmitted to controllers or other processing equipment.