After you start simulation, the simulation toolbar contains a toggle button that shows the message window.

If you right-click the entry in the message, you can see from which block the entry in the message originates. You can also select this block in the circuit program (Go to Block) and call up the properties of this block (Block Properties).

For LOGO! 9 and LOGO! 9 TDE devices, when you configure a LCD Message function block to display message pages, simulation mode shows message pages on the device screen.

When you configure a LOGO! 0BA6 or 0BA7 message text, or a LOGO! 0BA8 message text, you specify whether to display the message text on one destination (the LOGO! onboard display or LOGO! TD) or on both. If you specify to display a message text on one destination, simulation mode shows active message texts for that destination in one window. If you select to display on both destinations, simulation mode shows active message texts for the LOGO! onboard display and the LOGO! TD in separate windows. If you use LOGO! 0BA5 message texts in your circuit program, the message text destination can only be the LOGO! onboard display.