Siemens 6ES7135-8GD00-0AN0 Analog Output Module. Siemens 6ES7135-8GD00-0AN0 is the exact manufacturer order number for a analog output module in the SIMATIC ET 200 Distributed I/O portfolio. Siemens describes this exact reference as: SIMATIC ET 200BL, analog output module, AQ 4xI, module diagnostics, 16 bit, packing unit: 1 unit, color code CC00. The verified manufacturer lifecycle record is PM300: Active Product.