Automax Memory DCS Module | Image
3 year warranty

Automax Memory DCS Module | Image
Automax Memory DCS Module | Image


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Automax Memory DCS Module



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  • Part Number: O-57423-
  • SKU: O57423RE
  • Manufacturer: Reliance Electric
  • Series: AutoMax PLC

O-57423- Technical Specifications

Manufacturer Reliance Electric
Series AutoMax PLC
Part Number O-57423-
Product Type Common Memory Module
Instruction Manual J-3636

Product Description

Reliance Electric created the O-57423- Common Memory module to be used within the AutoMax series of PLCs. This device may be available at AX Control due to our access to excess Reliance Electric stock. You can check this product’s availability by looking on this page of our website or by contacting us during our business hours on weekdays.

The O-57423- Common Memory module is a required product if your AutoMax rack has more than one processor module connected with it. In this situation, you will need to connect the O-57423- Common Memory module into slot 0 of the AutoMax rack. The O-57423- Common Memory module stores the configuration data that will be shared among processors. This configuration includes the definitions of the physical I/O. This process will free the processor module memory for important application tasks. In addition to that, the O-57423- Common Memory module can arbitrate the processors’ access to the bus.

Incorporated within the O-57423- Common Memory module, you will find the battery-backed RAM for data storage, a system watchdog for multiprocessing, and bus arbitration logic. These features become noticeable to the operator whenever the module is connected to slot 0 of the rack. The O-57423- Common Memory module, when connected to this slot, has 256 kilobytes of memory. This module also contains a supercapacitor protect and an on-board lithium battery. In the event that the O-57423- Common Memory module loses power, this on-board lithium battery will maintain the contents of RAM for a minimum of 600 days.

The faceplate of the O-57423- Common Memory module has two green LED status indicators. The top LED is the “BAT.OK” light, which indicates the status of the on-board battery. The bottom light is the “SYSTEM WATCHDOG” light, which indicates whenever the module is in the rack’s slot 0 and has passed its power-up diagnostics. 

Frequently Asked Questions about O-57423-

Is any information saved on O-57423- if a power failure occurs?
If a power failure occurs on O-57423-, the on-board lithium battery maintains the contents of memory that was already on the O-57423-.
What are the power requirements on O-57423-?
When O-57423- is at +5 volts, the power requirement for O-57423- is 1050mA.
What is the minimum memory hold-up on a Reliance O-57423-?
The minimum hold-up with battery on O-57423- is 600 days. Without battery, O-57423- has a minimum hold-up of 130 minutes.
Is the manual for O-57423- easy to find?
Yes, we have the manual for O-57423-. You should be able to find the manual on our site- Manual J-3636, the Common Memory Module Manual, but we are also happy to send you a link to the manual for O-57423-.
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Repair Services For O-57423-

Type Lead Time Price Action
Repair Service 1-2 weeks $256

Our highly skilled technicians can repair your O-57423-. All of our repairs come with a 3 Year AX Control Warranty. Please contact us for additional information about our repair process. To receive the repair pricing and lead time listed above please process your repair order via our website. The following repair options may be available upon request:

  • 48-72hr Rush Repair
  • Detailed Repair Reports
  • AX Control Certificate of Warranty

AX Control Warranty Info

All products we sell are backed by our unparalleled warranty. A warranty certificate will be provided with your order upon request.
All PLCs, HMIs, and Turbine Control Boards: 3 Years
All AC/DC and Servo Drives: 2 Years
All Motors: 1 Year
Learn More

O-57423- Manuals, White Papers, Data Sheets, and Troubleshooting