System Messages - Alphabetical List *Illegal expression syntax* (-458) Explanation: While decoding a numeric or logical expression, a compound transformation, or a string expression, eV+ has encountered syntax that it does not understand. Possible errors include unmatched parentheses, missing variables, or missing operators. User action: Retype the line containing the expression, being careful to follow the eV+ syntax rules. *Illegal in debug monitor mode* (-359) Explanation: An operation was attempted that is not accepted in debug monitor mode. User action: Use a different command, change to debug editor mode, or exit from the program debugger.
*Illegal in read-write mode* (-365) Explanation: An editor function was attempted that cannot be performed while accessing a program in read-write mode. User action: Change to editing the program in read-only mode, or use a different editor command. *Illegal I/O channel number* (-518) Explanation: An internal I/O channel number has been encountered that is invalid. This indicates a eV+ internal software problem. User action: It would be appreciated if you would report the error to Omron Adept Application Engineering. Please include the details of the error message and exactly what you were doing at the time the error occurred. *Illegal I/O device command* (-502) Explanation:
A command to an I/O device was rejected by that device. Certain devices do not accept all commands. For example, random access I/O is illegal to the terminal or to the Kermit device; the GETC function cannot read from a disk file opened for random access. This error may also indicate a hardware problem with the device controller. User action: Correct the I/O command as required to suit the device. If you continue to have difficulty, contact Omron Adept Application Engineering for assistance. *Illegal I/O redirection specified* (-525) Explanation:
An unacceptable I/O redirection has been specified in a DEFAULT monitor command, a disk I/O monitor command (LOAD or STORE_), or in an ATTACH instruction. eV+Language Reference Guide, v2.x, 18319-000 Rev A Page 614