Inputting, Modifying, And Checking The Program; Setting And Reading From Program Memory Address - Omron SYSMAC C2000H Operation Manual

Inputting, Modifying, and Checking the Program

4-6

Inputting, Modifying, and Checking the Program

4-6-1

Setting and Reading from Program Memory Address

Key Sequence
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. Once syntax errors are corrected, a trial execution can begin
and, finally, correction under actual operating conditions can be made.
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.
Before starting to input a program, check to see whether there is a program
already loaded. If there is a program already loaded that you do not need,
clear it first using the program memory clear key sequence, then input the
new program. If you need the previous program, be sure to check it with the
program check key sequence and correct it as required. Further debugging
methods are provided in Section 7 Debugging and Execution.
When inputting a program for the first time, it is generally written to Program
Memory starting from address 00000. Because this address appears when
the display is cleared, it is not necessary to specify it.
When inputting a program starting from other than 00000 or to read or modify
a program that already exists in memory, the desired address must be desig-
nated. To designate an address, press CLR and then input the desired ad-
dress. Leading zeros of the address need not be input, i.e., when specifying
an address such as 00053 you need to enter only 53. The contents of the
designated address will not be displayed until the down key is pressed.
Once the down key has been pressed to display the contents of the desig-
nated address, the up and down keys can be used to scroll through Program
Memory. Each time one of these keys is pressed, the next or previous word
in Program Memory will be displayed.
If Program Memory is read in RUN or MONITOR mode, the ON/OFF status
of any displayed bit will also be shown.
Section 4-6
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