User manual

IEC61131 User and Reference Manual
April 22, 2008
26
PC to Controller Link
A communication link is used to connect the ISaGRAF debugger and the target SCADAPack
controller. The ISaGRAF debugger controls the downloading of applications to the target
controller, monitoring the applications running in the target controller and the starting and
stopping of applications in the target controller.
Configuring PC-PLC Link Parameters
The ISaGRAF PC-PLC Link parameters define how the communication link between the PC
and the target controller functions. To open the PC_PLC link parameters dialog:
 Select Link setup from the Debug menu.
When selected the PC-PLC Link Parameters dialog is displayed.
The Target Slave Number: entry is ignored when the TeleBUS Driver is selected. The
TeleBUS Driver sets the target slave number. Ignore the value in this field.
From the Communication port: dropdown list-box select TeleBUS Driver.
Note: If the TeleBUS Driver is not selectable from the Communication port: drop down
menu then the Control Microsystems Extensions have not been installed. Refer to
the installation CD jacket for installation information.
The Time out (seconds): edit-box sets the length of time, in seconds, to wait for a response
to a command from the target controller. It is an integer in the range 1 to 255 seconds. The
default value is 3.
Note: This value must be set for a value larger than the Timeout value in the
communication Protocols Configuration. See the Configuring PC Communication
Settings section.
The Retries: edit-box sets the number of communication attempts before a message is
aborted. It is an integer in the range 1 to 20. The default value is 3.
Note: This value must be set for a value larger than the Attempts value in the
communication Protocols Configuration. See the Configuring PC Communication
Settings section.
 Select the Setup button. When selected the PC Communication Settings dialog is
displayed.