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Terminals on SCADA products and the RAZN have many Input/Output capabilities.
This page describes all the types of terminals available on Raveon’s products with SCADA terminals and General Purpose IOs.

INPUTS can Control the Logic of the OUTPUTs

Each product version of the RAZN and has a Programmable Logic Controller (PLC) feature.

To set the PLC’s rule-based programming, the PLCL command configures inputs to control outputs locally or remotely. If you setup Programmable Logic Control (PLC) programmed with the PLCL command, this will control things the way you want them to, and if something else tries to take over the same output, this PLC logic is the main controller for output terminals.

All INPUT pins are heavily protected against noise and ESD. OUTPUT terminal ports are heavily protected also, and many output types are available.

Most General Purpose IO (GPIO) terminal pins on the RAZN have Flexable IO pins(FIO) that are often used as inputs for Programmable Logic Controllers.

A pair of RAZNs are available presetup to remotely control things.  One can have button inputs, and another outputs to control things like pumps, valves, lights,…

Buttons pressed can control things miles away using a pair or Raveon’s RAZNs, and a computer, network, or IoT server can connect to a RAZN and pass along the control commands
to the remote thing. The RAZN Automated Peripherals use the PLC logic to remotely control things.

Long Range Wireless PLC Connections

To set the PLC’s rule-based programming, the RAZN has the PLCL command to configure inputs to control outputs locally or remotely. If you setup Programmable Logic Control (PLC) programmed with the PLCL command, this will control things the way you want them to, and if something else tries to take over the same output, this PLC logic is the main controller for output terminals.

Command PLCL X BBBB CCCC SS     setups the Programmable Logic.  Programmable Logic can setup inputs to trigger outputs, and many other ways for logic to take place within this RAZN, or event have it send out to another RAZN to do something.  Every RAZN can have up to 16 different PLCL features setup, so 8 input can control 8 outputs on one RAZN, or 16 inputs on a RAZN can control 16 outputs on a remote RAZN or it can control one outputs on 16 different remote RAZNs. To have this PLC ladder logic executed internally in a single RAZN, the code in SS is 0.  0 (Zero) sets this logic completely in the RAZN is it setup in, so all input/output PLC features take place in the RAZN.

For remotely controlling other RAZNs you can specify which remote RAZN to control by specifying the terminal number of the RAZN to control in SS.  Communication is via MODBUS, so it can also control other SCADA RTU or PLCs if you want.

If you setup Programmable Logic Control (PLC) programmed with this PLCL command, this will control things the way you want them to, and if something else tries to take over the same output, this PLCL logic is the main controller so this PLCL logic will work. For example, if you control a terminal port via an input using this PLCL feature, and then also some remote MODBUS message comes in and changes that same terminal port, it won’t change the terminal because this PLCL feature is the main controller. Because this PLCL logic always is running quickly and updated fast, so other commands or messages will not take over the terminal ports you wanted to control via this Programmable Logic Control.

FIO     Flexible Digital Input / Output

IOPIN:  A(In) B(Out) is the character used to specify the IO mode

  • User configurable TTL digital IO pins configurable as In or Out.
  • Max DC input Voltage: Vcc
  • “ON” DC input voltage Range: (0.8 × Vcc) to Vcc
  • “OFF” DC input voltage Range: 0V – (0.12 × Vcc)
  • Input Current:  <2uA
  • CAP: 220pF      Res: 1K      Diodes for ESD protection.
  • Default IO mode from factory: A (digital Input).
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