Siemens 6ES7450-1AP01-0AE0 Industrial Automation Module — Legacy Replacement. Siemens 6ES7450-1AP01-0AE0 is the exact manufacturer order number for a industrial automation module in the SIMATIC S7-400 portfolio. Siemens describes this exact reference as: SIMATIC S7-400, function module FM 450-1 for counter function with 2 channels incl. configuration package on CD. The verified manufacturer lifecycle record is PM400:Announcement of product phase-out.