Omron NT620C, Operation Manual

Page: 227 / 337

5-3 Section Lamps and Touch Switches
216
S
Possible bit allocations
Notify bits and control 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
f
Data memory
f
CH Internal/Special Relay
f
Internal/Special Relay
f
TIM Timer Timer
CNT Counter Counter
HR Holding Relay
f
–
AR Auxiliary Relay
f
Auxiliary Relay
LR Link Relay
f
–
f
: OK : NG
Since all the CVM1/CV-series special auxiliary relays are allocated to the sys-
tem, they cannot be used for applications not related to the system.
The range of each memory area differs according to the PC type. See Appen-
dix L “PC Memory Map” (page 327).
When making a data memory (DM) specification, specify the bit number (00 to
15) following the word number.
5-3-4 Lit (Flashing) and Unlit Touch Switch Statuses
(Changing the Status of Allocated Bits)
This section describes how to change the statuses of allocated bits and thereby
the statuses of the touch switches displayed by the NT620S/620C.
The statuses of touch switches displayed by the NT620S/620C are changed by
switching the lamp bits allocated in the PC memory ON and OFF.
NT620S/620C PC
Lit
1 1 (ON)
Allocated bit (touch switch No. 1)
Touch switch 1
The status of the lamp bit reflects the touch switch status, as follows:
0 (OFF): Unlit
1 (ON): Lit (inverse display) or flashing
Procedure 1. Use the support tool to allocate the touch switch lamp bits to the PC memory.
2. When creating the screen data using the support tool, register the touch
switch for a screen.
3. Create the PC program to switch the lamp bit of the touch switch ON and
OFF.
Set whether a touch switch will be continuously lit or blink when its bit has
been turned ON by setting the support tool touch switch display attributes.