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For example, to leave the TC area uncleared and retaining Program Memory
addresses 0000 through 0122, input as follows:
0000
0000
0000
0000MEMORY CLR?
HR CNT DM
0000MEMORY CLR?
HR DM
0123MEMORY CLR?
HR DM
0000MEMORY CLR
END HR DM
4-5-3 Clearing Error Messages
Any error messages recorded in memory should also be cleared. It is as-
sumed here that the causes of any of the errors for which error messages
appear have already been taken care of. If the beeper sounds when an at-
tempt is made to clear an error message, eliminate the cause of the error,
and then clear the error message (refer to
Section 8 Troubleshooting
).
To display any recorded error messages, press CLR, FUN, and then
MONTR. The first message will appear. Pressing MONTR again will clear the
present message and display the next error message. Continue pressing
MONTR until all messages have been cleared.
Although error messages can be accessed in any mode, they can be cleared
only in PROGRAM mode.
Key Sequence
4-6 Inputting, Modifying, and Checking the Program
Once a program is written in mnemonic code, it can be input directly into the
PC from a Programming Console. Mnemonic code is keyed into Program
Memory addresses from the Programming Console. Checking the program
involves a syntax check to see that the program has been written according
to syntax rules before trial execution and finally correction under actual con-
ditions can begin.
The operations required to input a program are explained below. Operations
to modify programs that already exist in memory are also provided in this
section, as well as the procedure to obtain the current cycle time.
Inputting, Modifying, and Checking the Program Section 4-6