System Messages - Numerical List eV+Language Reference Guide, v2.x, 18319-000 Rev A Page 665 Code Message Text -301 *No program specified* -302 *DO not primed* -303 *Controller not in automatic mode* -304 *Controller not in manual mode* -305 *Storage area format error* -307 *Program not executable* -308 *Program interlocked* -309 *Program already exists* -310 *Can't access protected or read-only program* -311 *Invalid when program task active* -312 *Can't start while program running* -313 *Can't go on, use EXECUTE or PRIME* -314 *Switch can't be enabled* -315 *Invalid software configuration* -316 *Software checksum error* -317 *Controller not in network mode* -318 *Program task not active* -319 *Program task not in use* -350 *Can't delete .PROGRAM statement* -351 *First statement must be .PROGRAM*