Industrial Automation Co. is NOT an Authorized Rockwell Distributor - we have our own unique inventory and sourcing relationships. Review our Reseller notice, here.

The Allen-Bradley 1756-M1 is a Series A ControlLogix memory board designed for use exclusively with ControlLogix 5550 controllers, including models 1756-L1, 1756-L1M1, 1756-L1M2, and 1756-L1M3. Featuring a 512 Kbytes expansion memory with an open-style enclosure, it offers robust environmental resilience, operating effectively in temperatures from 0 to 60 degrees Celsius and storing between -40 to 85 degrees Celsius. Withstanding vibrations up to 2 g, operating shocks of 30 g, and non-operating shocks of 50 g, this memory board also meets Group 1, Class A emission standards and boasts impressive immunity to electrostatic discharge and radiated RF.