Omron CPM1A operation manual Binary Data Modification, Pres VAL?, Montr

D0000

0119

Programming Console Operations Section 4-3

Words SR 253 to SR 255 cannot be changed.

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

(Word monitor)

2. Press the CHG Key to begin hexadecimal, BCD data modification.

PRES VAL?

CHG D0000 0119 ????

3.Input the new PV and press the WRITE Key to change the PV.

The operation will end and the normal monitoring display will return when the WRITE Key is pressed.

C A A

2 0 0 WRITE

D0000

0200

4-3-20 Binary Data Modification

This operation is used to change the status of a word’s bits when the word is monitored using the procedure described in 4-3-13 Binary Monitor. It is pos- sible in MONITOR or PROGRAM mode only.

RUN	MONITOR	PROGRAM
No	OK	OK

Bits SR 25300 to SR 25507 and timer/counter flags cannot be changed.

!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 word according to the procedure described 4-3-13 Binary Monitor.

	D0000	MONTR
	1000010101010101
(Binary monitor)	Bit 15	Bit 00
2. Press the CHG Key to begin binary data modification.
	D0000	CHG?
CHG	1000010101010101

A flashing cursor will appear over bit 15. The cursor indicates which bit can be changed.

3.Three sets of keys are used to move the cursor and change bit status:

a)Use the Up and Down Arrow Keys to move the cursor to the left and right.

↓ ↓	D0000 CHG?
	1000010101010101

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