T.1 Identifying the problem

Once you have identified the problem, find the problem in the table below and read the section offering the solution.

When?	Problem	Reference page for solution
Operating software (GP-Pro EX) on a PC	Software (GP-Pro EX) cannot be installed.	T.2.1 GP-Pro EX cannot be installed
	Software (GP-Pro EX) does not start or terminates abnormally.	T.2.2 GP-Pro EX does not start or terminates abnormally
	Unable to transfer project files	T.2.3 Unable to transfer project (USB transfer cable) T.2.4 Unable to transfer project (Ethernet cable) T.2.5 Unable to transfer to external storage (Use the memory loader tool) T.2.6 Cannot use modem for transferring
	Online update fails.	T.2.7 Online update fails
	Pass-Through Configuration Tool cannot start.	T.2.8 Pass-Through Configuration Tool cannot start
	Display Unit cannot communicate with the PC via the pass-through function.	T.2.9 Display Unit cannot communicate with the PC via the pass-through function
	Cannot display manuals and sites from the help menu	T.2.10 Cannot display manuals and sites from the help menu
Operating the Display	The touch panel does not respond.	T.3.1 The touch panel (switch) does not respond
	The touch panel (switch) for the Display does not respond to touch but another area responds instead. The panel responds when nothing is touched.	T.3.2 Different part of the display responds when touched (switch), or responds by itself - When Using the Display Unit
	The Display does not turn ON. The initial screen is not displayed. The screen remains black.	T.3.4 The Display does not turn ON (The initial screen is not displayed. The screen remains black.)
	The buzzer sounds continuously.	T.3.5 An alarm sounds continuously
	Lines or streaks appear on the Display screen. The screen turns white.	T.3.6 Lines (streaks) on the screen, Screen turns white
	The status LED is flashing in green.	T.3.7 The status LED is flashing in green
	The screen flickers.	T.3.8 The screen flickers
Communicating with a connected device	Communication fails on all screens.	T.4.1 Communication fails on all screens
	Communication fails on specific screens.	T.4.2 Communication fails on specific screens
	Communication is slow.	T.4.3 Communication is slow
	Communication stops intermittently.	T.4.4 Communication stops intermittently
Using the expansion options	The devices connected to the DIO interface do not turn ON/OFF.	T.5.1 Devices connected to the DIO interface do not turn ON/OFF
	The FLEX NETWORK unit, PROFIBUS (Slave) unit, or VM unit does not operate properly. In such cases, you need to refer to the manual for the respective unit. The section in this chapter lists the names of the manuals.	T.5.2 FLEX NETWORK I/O unit will not operate
	Communication fails with the GP3000 Series PROFIBUS Slave Unit.	T.5.5 Communication fails with the GP3000 Series PROFIBUS Slave Unit
	An image does not appear on the display unit when using a VM unit.	T.5.6 Image does not appear when using the Video Module
	Communication fails with the DeviceNet unit.	T.5.7 DeviceNet (Slave Unit) will not communicate
	Communication fails with the EX module.	T.5.8 Communication fails with the EX module
	USB transfer cable is not recognized.	T.5.9 USB transfer cable is not recognized
	USB-Serial (RS-232C) conversion cable is not recognized.	T.5.10 USB-Serial (RS-232C) conversion cable is not recognized
	Communication fails with the device connected to a CANopen slave unit.	T.5.11 Communication fails with all the devices connected to a CANopen master unit