User manual
IEC61131 User and Reference Manual 
April 22, 2008     
99 
  SCADAPack 334 
Select the appropriate target controller this application is intended for. 
Selecting OK saves the setting and closes the dialog. 
Selecting Cancel closes the dialog without saving any changes. 
ISaGRAF verifies the controller type when writing to the target controller. If the controller 
type selected is different than the target controller connected, then the following error 
message is displayed: 
"Cannot write to a different type or model of controller. Do you want to switch the controller 
type to xxxx?"  
Where xxxx is the detected controller type. 
Connect to Controller Command 
This command connects to a controller using a dial-up modem. The command is available 
only if a dial-up modem connection is selected in the Link Setup. A connection must be 
established with the controller to enable the other commands on the controller menu. 
Disconnect from Controller Command 
This command disconnects from a controller using a dial-up modem. The command is 
available only if a dial-up modem connection is selected in the Link Setup and a connection 
has been made using the Connect to Controller command. 
Write to Controller Command 
This command writes the controller serial port settings, TCP/IP settings, Modbus/TCP 
settings and I/O error indication settings to the target controller.  
Programs that are executing in the target controller are paused momentarily when 
commands are written. The length of the pause depends on the command written. 
Observing the Maximum Cycle Time parameter in the Debug window gives an indication of 
the pause length for the parameter written. 
The controller serial port settings are edited using the Serial Ports command; the controller 
TCP/IP settings are edited using the TCP/IP command; the controller Modbus/TCP settings 
are edited using the Modbus/TCP command; and the I/O error indication settings are edited 
using the I/O Error Indication command. 
Read from Controller Command 
This command reads the controller serial port settings, TCP/IP settings, Modbus/TCP 
settings and I/O error indication settings from the target controller.  
The controller serial port settings are edited using the Serial Ports command; The controller 
TCP/IP settings are edited using the TCP/IP command; The controller Modbus/TCP settings 
are edited using the Modbus/TCP command; and the I/O error indication settings are edited 
using the I/O Error Indication command. 
Initialize Controller Command 
The Initialize command is used to restore a controller to default settings. This is typically 
done when starting a new project with a controller. The Initialize dialog presented depends 
on the type of controller. 










