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G1  Introduction to AC500  1-91  AC500 / Issued: 07.2006 
Now we have to specify the corresponding parameters in the "Communication Parameters" dialog. 
Specify the serial interface of the PC with the parameter "Port": double click on the value of “Port”, 
possibly several times. Click on the "Baudrate" value and then double click the value until "19200" is 
displayed. Proceed in the same way to change the "Motorola byteorder" setting from "No" to "Yes". 
Confirm your settings with "OK". 
 
 
Testing the program with PLC hardware connected 
Proceed as follows to test the program with PLC hardware connected: 
Downloading the program to the PLC 
First we have to load the program to the controller. To do this, select the menu item "Online/Login". 
 
The software checks whether the project on the PLC is identical to the project on the PC. If the PLC 
does not yet contain a user program, the message "No program available in the controller. Should the 
new program be loaded" is displayed. If the project on the PLC differs from the project on the PC, the 
following message is displayed: 
 
Select "Yes". Then the program is downloaded from the PC to the PLC. When starting the download 
process, the PLC changes to the STOP mode.