Here are some key features of the 1756-A4 chassis:

Physical Structure: The 1756-A4 chassis is a compact, 4-slot rack-style chassis designed for DIN rail or panel mounting. It features a backplane that provides power and communication connections to the modules installed in the chassis.

Module Capacity: The chassis can accommodate up to four modules, including a combination of processor modules and I/O modules. The specific module configuration depends on the automation requirements of the application.

Power Supply: The chassis requires an external power supply for providing electrical power to the modules installed in it. The power supply modules are typically mounted next to or within the same enclosure as the chassis.

Communication: The 1756-A4 chassis facilitates communication between various modules through the ControlLogix backplane. This allows for data exchange and coordination between the modules within the system.

Integration: The 1756-A4 chassis is part of the ControlLogix platform, which is widely used in industrial automation applications. It can be integrated with other components of the ControlLogix system, including HMI (Human-Machine Interface) devices, programming software, and networking infrastructure.

Allen Bradley 1734 Series Plc Model 

1734-IE2V

1734-IE4C

1734-IJ

1734-IK

1734-IM4

1734-IT2I

1734-OA2

1734-OA4

1734-OB2

1734-OB2EP

1734-OB4

1734-OB4E

1734-OB8

1734-OE2V

1734-OV8E

1734-OW4

1734-PDN

1734-RTB

1734-SSI

1734-TB

1734-TB3

1734-TBCJC

1734-TBS

1734-TOP

1734-TOP3

1734-TOP3S

1734-TOPS