Omron CPM1A operation manual Unsigned Decimal Data Modification, Force Set, Reset

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Programming Console Operations Section 4-3

4-3-22 Unsigned Decimal Data Modification

This operation is used to change the decimal value of a word being moni- tored as unsigned decimal data, within a range of 0 to 65,535. A change into hexadecimal data is made automatically.

Words SR 253 to SR 255 cannot be changed.

RUN	MONITOR	PROGRAM
No	OK	OK

!Caution Before changing the contents of I/O memory, be sure that the changes will not cause equipment to operate unexpectedly or dangerously. In particular, take care when changing the status of output bits. The PC continues to refresh I/O bits even if the PC is in PROGRAM mode, so devices connected to output points on the CPU Unit or Expansion I/O Units may operate unexpectedly.

1, 2, 3... 1. Monitor (unsigned decimal) the status of the word for which the present value is to be changed.

(Unsigned decimal monitor)

2. Press the CHG Key to begin decimal data modification.

CHG

PRES VAL?

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3.Input the new PV and press the WRITE Key to change the PV. The operation will end and the decimal-without-sign monitoring display will return when the WRITE Key is pressed.

The PV can be set within a range of 0 to 65,535.

D C

3 2 7 6 8 WRITE

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If an erroneous input has been made, press the CLR Key to restore the sta- tus prior to the input. Then enter the correct input.

The buzzer will sound if a value outside the specified range is input, allowing no writing.

4-3-23 Force Set, Reset

This operation is used to force bits ON (force set) or OFF (force reset) and is useful when debugging the program or checking output wiring. It is possible in MONITOR or PROGRAM mode only.

RUN	MONITOR	PROGRAM
No	OK	OK

!Caution Before changing the contents of I/O memory, be sure that the changes will not cause equipment to operate unexpectedly or dangerously. In particular, take care when changing the status of output bits. The PC continues to refresh I/O bits even if the PC is in PROGRAM mode, so devices connected to output points on the CPU Unit or Expansion I/O Units may operate unexpectedly.

1, 2, 3... 1. Monitor the status of the desired bit according to the procedure described in 4-3-11 Bit, Digit, Word Monitor. If two or more words are being monitored, the desired bit should be leftmost on the display.

(Multiple address monitor)

0000020000 ^ OFF^ ON

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