The Siemens 6AG1416-3ES06-7AB0 is a SIPLUS S7-400 CPU built for extended temperature environments — it's rated from -40 °C all the way up to 70 °C, so it handles outdoor cabinets, freezer floors, or hot dusty panels better than a standard S7-400. This CPU runs the full suite of engineering languages: LAD, FBD, STL, SCL, GRAPH, and CFC, and communicates over a built-in PROFIBUS RS-485 interface plus an integrated PROFINET port that supports IRT (isochronous real-time). The FM (function module) capacity is described as 'Limited by number of slots or number of connections' — which is the constraint to watch when you're planning your rack layout.
FM capacity – what the constraint means
Function module capacity depends on available slots and connection resources; there is no fixed maximum.
Engineering and communication capabilities
On the engineering side, this CPU supports CFC (Continuous Function Chart) and GRAPH, both less common but essential if you're doing sequence control or process loops. It also does S7 routing, meaning you can reach devices on subnets beyond the local PROFIBUS segment without extra hardware. The integrated PROFINET interface handles IRT for isochronous real-time motion or fast I/O, and you can add TCP/IP and UDP communication via loadable function blocks — the documentation mentions UDP 'via integrated PROFINET interface and loadable FBs'.
Sourcing and integration
This part is sourced to order against an RFQ — it's a specified BOM line for S7-400 systems that need the wide-temperature SIPLUS variant. If you're assessing a retrofit or a new build, we can quote it against your requirement. The module measures 50 mm wide, 290 mm high, and 219 mm deep, and it draws power from the system power supply, not directly from 24 V DC (so you'll need a backplane or rack slot with power). It carries a CE mark.