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Surplus Unit Working Used 1747-L552 Ser B 1747-OS501 Ser C FRN Varies 1747-L552/C. Allen Bradley SLC 500 1747L552 1747OS501 1747-05501 1747-0S501 Date Varies. While many Allen Bradley / Rockwell Automation products will have firmware already installed, we makes no representation as to whether a PLC product will or will not have firmware and, if it does have firmware, whether the firmware is the revision level that you need for your application or not.
When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.