SIEMENS 6ES7378-2AB00-0AC0

Siemens SIMATIC M7 EXM 378-2B PLC Extension Module Description The 6ES7378-2AB00-0AC0 is an EXM 378-2B extension module designed for the Siemens SIMATIC M7-300 and M7-400 automation systems. This module serves to expand the I/O capacity of the controller, featuring dedicated analog and digital I/O ports via high-density D-sub connectors. As a component of the now-obsolete SIMATIC M7 family, this module is a critical spare part for maintaining legacy PC-based control systems. It operates on a standard 24V DC power supply. Specifications Manufacturer: Siemens Product Line: SIMATIC M7 Model: EXM 378-2B Part Number: 6ES7378-2AB00-0AC0 Power Supply: 24V DC, 0.7A Connectors: 1x Analog I/O Port (D-sub), 1x Digital I/O Port (D-sub) Label Info SIMATIC M7-300 6ES7 378-2AB00-0AC0 INPUT DC24V 0.7A Application This module is used exclusively with Siemens SIMATIC M7 series controllers, which were typically employed in complex, PC-based automation tasks in manufacturing, process control, and machine building during the 1990s and early 2000s. Country of Origin Made in Germany. CO2 Impact By purchasing this refurbished or used part, you are actively participating in the circular economy. The reuse of this 0.8kg electronic module avoids the production of a new one, saving an estimated 32 kg of CO2. This is equivalent to the emissions from driving a car for 160 kilometers. Availability This obsolete component is available from our stock as a crucial spare for system maintenance and repair. Order now from profideals for expert support and fast delivery. FAQ Is this module compatible with the Siemens SIMATIC S7-300 series?No, this module is specifically for the obsolete SIMATIC M7-300 and M7-400 series. It is not compatible with the S7-300, S7-400, or any modern SIMATIC systems. What kind of cables are required for the A I/O and D I/O ports?These ports are high-density D-sub connectors. You will need specific pre-fabricated cables from Siemens or custom-made cables with the correct pinout for your application to connect to field devices. Does this module require any specific software or configuration in the M7 system?Yes, like any PLC module, it must be correctly configured in the hardware configuration of your SIMATIC M7 project using the appropriate Siemens engineering software (e.g., M7-SYS). profideals is not an authorized distributor, reseller or representative of the products featured on this website. All product names, trademarks, brands and logos used on this site are the property of their respective owners. Last Update: Friday, March 13, 2026