Analog I/O module ASCON
CANopen - Modbus

Really independent I/O modules with embedded microprocessor
Sigmadue is a system of standalone remote I/O modules designed by Ascon for fieldbus applications, in other words, fully distributed automation. No back planes nor common modules are necessary, also, wiring can be directly connected to the modules thus eliminating termination units. I/O modules have a lot of built-in intelligence. Embedded microprocessors allow them to scale data, linearise them, do signal conditioning, perform diagnostics and take care of alarms. These I/O modules can unburden the PLC memory. Valuable PLC memory can be dedicated only to the digital processing, thereby improving the PLC’s scan times. PLC processor can be downsized. The modules use CANbus or Modbus as bus, and are easily networked together. There are numerous CANbased or Modbus intelligent devices that can be networked together with the modules and brought into the system: PCs, PLCs, motor drives, valves, transmitters for pressures, temperatures. CANbus has the advantage in that the modules can be separated at great lengths from one another; so the I/O system can span large distances. Network adaptors will connect an entire Sigmadue system into Profibus or Ethernet. Ascon can also offer SigmaPAC, the programmable automation controller designed to be the host controller for the Sigmadue system of I/O and suitable to obtain completely open and configurable distributed automation systems.

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