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Reliance Electric 45C901 Shark XL Processor Module



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  • Part Number: 45C901
  • SKU: 45C901RE
  • Manufacturer: Reliance Electric
  • Series: Shark XL

45C901 Technical Specifications

Manufacturer Reliance Electric
Series Shark XL
Part Number 45C901

About the 45C901

The 45C901 is a Shark XL II CPU module that was made by Reliance Electric. If you are in need of the 45C901 CPU module, then look no further than AX Control. AX Control makes an effort to supply the 45C901 CPU module and all of the other modules in the Shark XL series despite being a legacy series. You can check on the availability of all of our products on our website.

The 45C901 CPU module is a revision on the 45C900 CPU module. This module has slightly different specifications to the one that is advertised on this page. If you are in need of the 45C900 CPU module, then please click on the link to find its page on AX Control’s website.

The 45C901 CPU module has an average program execution speed of 1.5 microseconds per standard instruction. There are two different types of memory on the 45C901 CPU module: EEPROM and EPROM. EEPROM has the capacity to fulfill 926 and 3997 words whereas EPROM only has the capacity to fulfill 3997 words. The 45C901 CPU module uses boolean and standard ladder logic programming languages with the use of IBM compatible software. There are 160 external I/O, 128 digital I/O, 256 non-retentive, and 256 retentive internal outputs with the 45C901 CPU module. In addition to that, the 45C901 CPU module has its own real time clock installed on it.

The 45C901 CPU module is capable of completing numerous different types of application instructions. These include IF command, jump, addressed jump, call subroutine, return from subroutine, define subroutine, and many more.

Frequently Asked Questions about 45C901

What exactly is a 45C901?
Reliance Shark XL 45C901 is a processor module without memory. You have to buy a EEPROM or EPROM memory separately for a 45C901. 
What does the PGM position of the communication selector switch do on a Reliance 45C901?
Positioning the communicator selector switch on a 45C901 allows you to select the hand-held programmer as the 45C901 processor's programming device.
What do the LED lights on the 45C901 indicate?
The LED lights on the 45C901 indicate the status of the processor module. If the err LED light is on that means an error has been detected. 
Where can I find the manual for the 45C901?
The 45C901 is included in the Shark XL Series manual that discusses the PLC as a whole and detailed information on each device. You can find the Shark XL manual by searching the manual number J-3809-2 online. 

Repair Services For 45C901

Type Lead Time Price Action
Repair Service 1-2 weeks $595

Our highly skilled technicians can repair your 45C901. 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

45C901 Manuals, White Papers, Data Sheets, and Troubleshooting