Countermeasure	Note 1	Error Solution
The Arm number cannot be cleared while in use. Stop the task and do one of the following. - Select an Arm number other than the one you want to specify. - Check the Arm number specified in the SPEL command. Targets are the commands corresponding to the function name and row number in the system history. See the reference manual for correction instructions.	Arm number you attempted to clear.	Stop task