Omron NS Programming Manual

Section 4 Using Functions 4-1 Application
4-8
NS Series Programming Manual
Suggestions
• Macros cannot directly specify PLC addresses. Use READCMEM() to store the address at $W.
• A numeral display and input object can be used to display word contents. Set the scale and offset
under Unit & scale setting to display an automatically scaled result without executing a macro opera-
tion.
• Word contents can be judged because operators can use logical and comparative operands in addi-
tion to arithmetic operands.
• If word lamp display is not required, change the settings to no display or move the word lamp outside
the screen.
4-1-3 Changed Bit Status
Prohibiting/Allowing Button Operation Based on Bit Status of Device Operation
Status
Example: To display Initializing on an ON/OFF Button and prohibit operation while the device is ini-
tializing and to display Ready on the ON/OFF Button and allow input (with the password
“NS” required) when the initialization has been completed.
OFF
ON
ON/OFF
Bit (control flag)
OFF
ON
0
1
Initializing
Ready
NS-series PT
PLC
1. Create an ON/OFF Button on the screen with the following settings.
Address
(write address)
PLC bit number manipulated using the ON/OFF Button
OFF label Initializing
ON label Ready
Switch label for address
ON/OFF
Select Switch label for address ON/OFF and Link with the Specified address
ON/OFF.
Specify as the address the PLC bit number that reflects the device operation
status.
Control flag – Input –
Indirect
PLC bit number that reflects the device operation status. This bit turns OFF during
device initialization and ON when device ready.
Password Select Level 1 and set NS under password level 1 settings.
With these settings, the ON/OFF Button display will depend on the device operation status and opera-
tion is prohibited or allowed.
The write address turns ON when input is allowed, the ON/OFF button is pressed, and the password
NS is input.
Suggestions
Input can be prohibited or allowed for the entire screen by manipulating system memory.

Omron NS Specifications

General

Brand	Omron
Model	NS
Category	Touch terminals
Language	English