| Error Code | Error Message | Cause and Troubleshooting | 
| RYAA001 | The specified shared memory already exists. | A fatal error occurred. Run transfer again. Or, use GP-Pro EX to run forced transfer. Then transfer again. | 
| RYAA002 | The specified shared memory does not exist. | A fatal error occurred. Run transfer again. Or, use GP-Pro EX to run forced transfer. Then transfer again. | 
| RYAA003 | A shared memory already exists, but its memory size is less than specified. | Please close another application or restart the OS. | 
| RYAA004 | Cannot create a shared memory due to insufficiency of memory or resource. | Please close another application or restart the OS. | 
| RYAA005 | Could not start TdasEngine because it is already in execution or termination. | A fatal error occurred. Run transfer again. Or, use GP-Pro EX to run forced transfer. Then transfer again. | 
| RYAA006 | Could not stop TdasEngine because it is already in suspension or termination. | A fatal error occurred. Run transfer again. Or, use GP-Pro EX to run forced transfer. Then transfer again. | 
| RYAA007 | Could not register the operation in TdasEngine. | A fatal error occurred. Run transfer again. Or, use GP-Pro EX to run forced transfer. Then transfer again. | 
| RYAA008 | Cannot execute State Transition of TdaInfo because a small service is now in transition. | A fatal error occurred. Run transfer again. Or, use GP-Pro EX to run forced transfer. Then transfer again. | 
| RYAA009 | The device name ( **** ) specified as the destination Node does not exist. | The defined names of connected devices are different between the master and slave display units. The connected devices names must match. | 
| RYAA010 | Cannot execute the operation due to the invalid state of the small service. | A fatal error occurred. Run transfer again. Or, use GP-Pro EX to run forced transfer. Then transfer again. | 
| RYAA011 | Cannot execute the operation because the small service is not in operation. | A fatal error occurred. Run transfer again. Or, use GP-Pro EX to run forced transfer. Then transfer again. | 
| RYAA012 | Cannot execute the operation because the small service is in error suspension. | A fatal error occurred. Run transfer again. Or, use GP-Pro EX to run forced transfer. Then transfer again. | 
| RYAA013 | The I/F of an unsupported small service was called. | A fatal error occurred. Run transfer again. Or, use GP-Pro EX to run forced transfer. Then transfer again. | 
| RYAA016 | Could not register the item because of insufficient memory. | Please close another application or restart the OS. | 
| RYAA017 | Accessed a device in which no item is registered. | A fatal error occurred. Run transfer again. Or, use GP-Pro EX to run forced transfer. Then transfer again. | 
| RYAA018 | Accessed an out-of-range device. | A device beyond the valid device range was accessed. | 
| RYAA019 | Failed to register the specified cluster because an invalid item is specified in it. | A fatal error occurred. Run transfer again. Or, use GP-Pro EX to run forced transfer. Then transfer again. | 
| RYAA020 | The specified data type is invalid. | A fatal error occurred. Run transfer again. Or, use GP-Pro EX to run forced transfer. Then transfer again. | 
| RYAA021 | The specified access type is illegal. | A fatal error occurred. Run transfer again. Or, use GP-Pro EX to run forced transfer. Then transfer again. | 
| RYAA022 | The specified data type is illegal. | A fatal error occurred. Run transfer again. Or, use GP-Pro EX to run forced transfer. Then transfer again. | 
| RYAA023 | The no. of data you specified is too many to write. (Please reduce it to **** or fewer.) | A fatal error occurred. Run transfer again. Or, use GP-Pro EX to run forced transfer. Then transfer again. | 
| RYAA024 | The operation result to write is below the lower limit value. | The value to write was out of range. Please change the setting to write an in-range value. | 
| RYAA025 | The operation result to write is beyond the upper limit value. | The value to write was out of range. Please change the setting to write an in-range value. | 
| RYAA026 | Could not send processing request to the network destination due to insufficient memory. | Please close another application or restart the OS. | 
| RYAA027 | The specified group was not found. | A fatal error occurred. Run transfer again. Or, use GP-Pro EX to run forced transfer. Then transfer again. | 
| RYAA028 | The two compared access tickets differ in their nodes, equipment, or devices. | A fatal error occurred. Run transfer again. Or, use GP-Pro EX to run forced transfer. Then transfer again. | 
| RYAA029 | The specified access ticket is not for this node. | A fatal error occurred. Run transfer again. Or, use GP-Pro EX to run forced transfer. Then transfer again. | 
| RYAA030 | Could not register the cache because of insufficient memory. | Please close another application or restart the OS. | 
| RYAA032 | The access ticket you tried to use in block access is not of the block type. | A fatal error occurred. Run transfer again. Or, use GP-Pro EX to run forced transfer. Then transfer again. | 
| RYAA033 | The small service to process was not found. | A fatal error occurred. Run transfer again. Or, use GP-Pro EX to run forced transfer. Then transfer again. | 
| RYAA034 | The size of block access to the device exceeded the limit. | The max buffer size for Device Block Write/Read is 10KB. Please set a size less than that. | 
| RYAA035 | A different network project is being used. | Please transfer the project file with GP-Pro EX again. | 
| RYAA037 | The no. of requests/the buffer size of requests to Read/Write via network at a time exceeded the limit( **** ). | Please recheck the settings of requests from and GP-Pro EX to the network destination, and redesign the system to limit the no. of requests to the max value. | 
| RYAA048 | A communication error occurred during communication with the destination node. Please confirm that the network connection to the node has been properly established. | Check that the network and cables between this display unit and the target unit are properly established and connected. | 
| RYAA049 | The destination node did not respond within the specified time. Please confirm that the network connection to the node has been properly established. | The response from the client is not within the timeout period set for the client. | 
| RYAA050 | The destination node did not respond within the specified time. Please confirm that the network connection to the node has been properly established. | The response from the server is not within the timeout period set for the server. | 
| RYAA051 | Communication with the destination Node stopped because the destination or local Node closed. | Set the display unit that is connected to the Run screen. | 
| RYAA064 | Failed to read the device. | The data may have been read into an illegal or undefined device address. Please specify a proper device address. | 
| RYAA065 | Failed to write the device. | The data may have been written into an illegal or undefined device address. Please specify a proper device address. | 
| RYAA069 | The specified request is not supported. | Please upgrade GP-Pro EX to a supported version by transferring the system. | 
| RYAA070 | The specified request is not supported. | Please upgrade GP-Pro EX to a supported version by transferring the system. | 
| RYAA080 | The project ID of the network project file is different. (A different network project is being used. | Please transfer the project file again with GP-Pro EX. | 
| RYAA081 | The network project file does not have necessary data. | Please transfer the project file again with GP-Pro EX. | 
| RYAA082 | The network project file is damaged. | Please transfer the project file again with GP-Pro EX. If it not enough, please transfer the project file with GP-Pro EX again. | 
| RYAA083 | The network project file does not exist. | Please transfer the project file again with GP-Pro EX. If it not enough, please transfer the project file with GP-Pro EX again. | 
| RYAA090 | Unable to connect to server. Exceeding client limit. | Terminate GP-Viewer EX that has been connected and try the connection again. | 
| RYAA091 | Unable to connect to server. Server settings have changed. | Try connecting to the server again. | 
| RYAA092 | Unable to connect to server. Server authentication failed. | Try connecting to the server again. | 
| RYAA093 | Unable to connect to server. Server is starting up. | Try connecting to the server again. | 
| RYAA096 | Failed to transfer data to display unit.(****) | Please confirm that the PLC connected to the display unit works properly. Please transfer the project file again with GP-Pro EX. | 
| RYAA097 | Failed to read the device from display unit. | Accessed an read-protect area. Please change the setting to avoid this. | 
| RYAA098 | Failed to write the device to display unit. | Accessed an write-protect area. Please change the setting to avoid this. | 
| RYAA099 | In device access to the display unit, the device number was out of range. | An invalid device was specified. Attempted to access a nonexistent device. | 
| RYAA100 | Failed to transfer data to display unit. (The destination Node does not respond.) | The Destination Node does not respond. Check the following: 
 Please transfer the project file again with GP-Pro EX. | 
| RYAA101 | Failed to read the device from display unit. | The Destination Node does not respond. Check the following: 
 | 
| RYAA102 | Failed to write the device to display unit. | The Destination Node does not respond. Check the following: 
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| RYAA103 | Operation was interrupted because the display unit was not online anymore. | The process was interrupted because the display unit was not online anymore. In order to complete the processing, set the display unit to the Run screen and repeat the processing. | 
| RYAA112 | Failed to update SRAM data. | Forcibly transfer the system using GP-Pro EX. | 
| RYAA113 | No accessing SRAM while processing. | Forcibly transfer the system using GP-Pro EX. | 
| RYAA114 | Unsupported request was set when accessing SRAM. | Forcibly transfer the system using GP-Pro EX. | 
| RYAA115 | Could not retrieve SRAM data because of insufficient memory. | Please close another application or restart the OS. | 
| RYAA116 | Could not register periodical SRAM update because of insufficient memory. | Please close another application or restart the OS. | 
| RYAA125 | Screen changes are not permitted from the client. | The screen switch request was rejected. Check the following: 
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