Product number (marketing number) 6ES7135-4MB02-0AB0 Product description SIMATIC DP, electronic module 2 AO I High Feature for ET 200S, 15mm construction width, cycle time per module: 0.5ms, +/-20mA; 15 bit + sign bit, 4.. 20mA; 15 Bit operating limit Value +/-0.05% Centralized error reporting by LED (centralized error reporting)