About 1775-MEDB

The 1775-MEDB is an error-correcting RAM module for the 1775 family of devices manufactured by Allen-Bradley. The module has a memory of 128KB and it can be connected with the PLC into one of the available slots in the chassis. The 1775-MEDB has various indicators on the front panel which are used to display the status of the module. The various indicators present are “Battery Low” which is used to indicate a low battery, “Memory Error Corrected” and “Memory Error” which display the errors related to the memory. It has a built-in battery backup which is used to provide backup power in case of a main power failure. The 1775-MEDB has a backplane current requirement of 1.8 Amps at 5 Volts DC and 0.15 Amps at 15 Volts DC.

The internal battery which is present has a voltage rating of 3.6 Volts. Before installing the battery, it is advised to read the manual for the battery and its relevant datasheet. The 1775-MEDB must not be shipped with the battery already installed and hence it is recommended to remove the battery before shipping. The module must be installed in an environment that has an ambient temperature between 0 and 60 degrees Celsius, and a humidity range of 5 to 95%, non-condensing. Make sure that while connecting the 1775-MEDB module, the power to the peripherals and the main is turned OFF to prevent any damage to the equipment and to prevent any electric arcs and shock. The installation must be done by a trained person who is familiar with the system to ensure proper operation and safety.

Repair Services for 1775-MEDB

Type	Lead Time	Price	Action
Repair Service	2-4 weeks	Ask	Get Quote

Our highly skilled technicians can repair your 1775-MEDB. All of our repairs come with a 1 Year DO Supply Warranty. Please contact us for additional information about our repair process.

Revisions for 1775-MEDB

Please refer to the manual for more information about the 1775-MEDB such as the wiring diagrams, data sheets, firmware information and migration or obsolescence details.