Notes on the Notification Operation

'￿￿￿￿4￿￿￿￿￿￿-￿￿￿￿￿￿4￿￿￿￿￿￿￿￿￿￿￿

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Section 5-3

Notes on the Notification Operation

The touch switch notification operations are as follows:

Type of Notification

When Using Host Link or

When Using C200H Direct

Communication or NT Link with

Operation

NT Link with DM Area

other than DM Area

 

 

 

 

 

Momentary

(1)Notification in word units

(3)Notification in bit units

(other bits go OFF)

 

 

Alternate

(2)Notification in word units

 

(however, the word contents

 

Set

are read on display and noti-

(4)Notification in bit units

Reset

fication is based on this

 

 

reading)

 

When using touch switch input notification, note the following points:

-In the case of (1), the other bits in the same word as the notification bit are turned OFF by the notification operation.

-In the case of (2), notification is executed on the basis of the contents of the word before display, which means that the other bits are not rewritten. Howev- er, if the word contents are changed at the PC side, they will be rewritten based on the contents before display.

-If the screen is switched while a momentary key is being pressed, the touch switch itself disappears, so the status “OFF” is notified. In the case of (1) this means that the other bits in the word will also be turned OFF.

-When using the host link, or NT link with the DM area, do not allocate momen- tary touch switches and other types of touch switch to the same word, since the notification operations are different.

In the case of (3) and (4), the notification operation has no influence on the other

￿bits in the word. Possible bit allocations

Notify bits and lamp bits for touch switches can be allocated to the areas of the PC memory listed in the following table.

Symbol

C Series PCs

Allocated

CVM1/CV Series PCs

Allocated

 

 

 

 

 

DM

Data Memory

Data Memory

 

 

 

 

 

CH

Internal/Special Relay

Internal/Special Relay

 

 

 

 

 

TIM

Timer

 

Timer

 

 

 

 

 

 

CNT

Counter

￿

Counter

 

 

 

 

 

 

HR

Holding Relay

--

 

 

 

 

 

 

AR

Auxiliary Relay

Auxiliary Relay

￿

 

 

 

 

 

LR

Link Relay

--

 

 

 

 

 

 

 

 

 

: OK ￿: NG

Since all the CVM1/CV-series special auxiliary relays are allocated to the system, they cannot be used for applications not related to the system.

The range of each memory area differs according to the PC type. See “Appendix M

PC Memory Map” (page 292 of the APPENDICES) for more details.

When making a data memory (DM) specification, specify the bit number (00 to 15) following the word number.

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Omron V022-E3-1 operation manual Section, Notes on the Notification Operation