eSimulatorsVelocio's eSimulators Velocio eSimulators are tools for application program development and training. They are simple, effective devices for simulating IO operations for testing and debugging application programs. For anyone learning PLCs, particularly the next generation PLCs features found in Velocio PLCs, these simulators are the best tools available. They are inexpensive, yet effective. For an automation application developer who develops multiple systems or develops and maintains a large system, they are keys to success, efficiency and risk avoidance. Through use of Simulators, any system can be developed and very thoroughly tested, on your desktop, before ever connecting to real world devices. Basic logic, various scenarios, exception cases and special conditions can all be systematically simulated and your program logic debugged on the desktop at a pace where actions, parameters and responses are known and observable. For learning PLC programming and control sytem fundamentals, Velocio Simulators are the most effective and inexpensive tools available. They are essential for working through the tutorials found in the vBuilder manual. They are also key to working through the training lessons and examples that are on, or will soon be on the Velocio.net web site. Through the process of working through these tutotials and training sessions, any person with a logical mind will be able to learn basic control application programming using Flow Charts and Ladder Logic, as well the advanced concepts of subroutines, object oriented programming, linked subroutines, embedded objects and distributed processing. eSimulators are designed for the embedded versions of the Ace, Branch and Branch Expansion PLCs. The embedded PLCs plug directly into the sockets found on the simulators. Individual toggle switches simulate digital input signals. LEDs display individual digital output status. Potentiometers provide analog input adjustment functionality. Four versions of eSimulators are available. The differences relate to whether the particular unit includes potentiometers for port F (port F analogs are not present on Branch and Branch Expansion units) and whether the IO ports are also brought out to connectors. The optional IO connectors provide the potential for connecting to real world devices. eSimulators can be used with 0-5V, 0-10V and 0-20mA versions of Velocio PLCs, although the useable potentiometer adjustment for 0-20mA is a fraction of full travel. • Training tool • Development tool • Debug tool • Socket monting for Velocio embedded PLCs • Toggle switches for digital input simulation • LED indicators for digital output status indication • Potentiometer adjustment for analog input simulation • 5VDC power connection for PLC power • Jumper selection for analog source • Optional port connectors • Desktop simulation • Simple debug tool • Direct manual control of IO conditions Available Versions of Simulators eSim 221 12 Dig In, 12 Dig Out, 6 Analog eSim 221p 12 DI, 12 DO, 6 AI, port connectors eSim 222p 12 DI, 12 DO, 12 AI, port connectors

eSimulator Features and Options The illustration on the right show an eSimulator, with all of the options (eSim 222p). The port connectors, which are present on the bottom of the simulator, are shown rotated to edge view for easier viewing. From this illustration, you can see the fundamental feature elements available. As shown, any Velocio embedded PLC will plug into the sockets on the top side of the Simulator. Component spacing allows for unimpeded USB and vLink cable insertion. This allows the full analog versions (eSim 222 and 222p) to be used with any eAce, eBranch or eBranch Expansion....

Digital inputs are simulated on the eSimulators through two banks of six toggle switches - one for each port. If no external connection is made through a port connector, digital input simulation is simple and basic. Any toggle switch that is flipped toward the PLC is 'on', resulting in the input tag bit in the PLC program reading a 1. Any switch that is flipped away from the PLC is 'off', resulting in the input tag bit reading a 0. The circuit for each digital input signal is shown on the right. With no connection to the port connector, the toggle switch switches between ground and 5VDC. There...

Analog Inputs are simulated on the eSimulator with potentiometers. There is one potentiometer for each analog input. The eSim 221 and 221p simulators have potentiometers for port A only. The eSim 222 and 222p simulators have potentiometers for both the A and F analog ports. The figure on the right illustrates the signal input to the each analog input. The potentiometer can be jumpered to connect to either the 5VDC power input that powers the PLC, or the optional AV analog voltage supply which can be connected to the second terminal block (labeled AV+ and AV-). AV- is tied directly to ground....