Simulator Control for Modicon Premium CPU

Introduction

The dialog box is shown if the simulator is simulating a CPU from the Modicon Premium family.

Representation of the dialog box:

CPU Front Plate

The virtual CPU front plate shows the current state of the CPU in a multi-line display using combinations of the RUN and ERR LEDs:

RUN LED	ERR LED	The simulated CPU is in state...	Meaning
off	flashing	NOCONF (no configuration)	No user project loaded or the loaded project is invalid.
flashing	off	IDLE	The project loaded on the CPU has not been started or reset with the Reset button.
flashing	off	STOPPED	No project is running. However, the loaded project was in RUN state at least once.
on	off	RUN	A project with at least one task is running.
off	flashing	HALT	An error has occurred in the project. The simulated CPU must be reinitialized or reset using the Reset button.
off	on	ERROR	An unrecoverable detected error has occurred in the project. This means communication is no longer possible. The simulated CPU must be reset using the Reset button.

When data is being exchanged between Control Expert and the simulator, the TER LED is flashing.

The CH0, CH1, CH2, CH3, I/O, and FIP LEDs are no supported by the simulator.

Events

With this button, you can open and close the event dialog box.

The button is shown if I/O events are defined in the project currently loaded (if the project uses event tasks).

Reset

With this button, you can reset the simulated CPU. This corresponds to a cold start of the CPU where the connection between Control Expert and the simulator is broken, project variables are reset and the simulator goes in RUN (if auto start is activated) or in STOP (if auto start is deactivated)).

Reset corresponds to the reset button on a real CPU.

Power Cycle

With this button, you execute a power cycle (power off/ power on) for the simulated CPU. This corresponds to a warm start of the CPU (the connection between Control Expert and the simulator is broken and the current project variables remain).

A power cycle corresponds to a power off and power on (or pressing the reset button) of a real power supply.

Simulation

Dialog box fields: Host PC name: DNS name of the host PC for the simulator. If the PC has multiple network cards, only the first is shown. Host IP address: TCP/IP address of the host PC for the simulator. If the PC has multiple network cards, only the first is shown. Project name: Name of the project loaded in the simulator.

Clients Connected

The list shows current clients connected with the PC (PCs which are connected via TCP/IP with the host PC of the simulator). The DNS name and TCP/IP address are shown for each client.