Omron NT31C Reference Manual page 210

Inputting Numeric Values
Reference: If the touch switch input sound has been turned OFF with the PT's memory
Symbol C-series PCs
None IR Area
H HR Area
A AR Area
L LR Area
TC Area,
T
Timer PVs
TU ---
TC Area,
C
Counter PVs
CU ---
W ---
TK ---
D DM Area
Desired input
range
0 to FFFF
H
0 to FFFFFFFF
H
Interlock Function
A numeral input from a thumbwheel switch can be controlled (enabled/disabled)
from the PC by setting the interlock function for the numeral input and allocating
an interlock bit in a PC data area. The status of the allocated interlock bit is read
and its status determines whether the thumbwheel switch is enabled or dis-
abled.
The following table shows how the PT operates when the interlock function is
used or not used.
Interlock
function
Used Numerical values can be changed by pressing the increment and
decrement touch switches only while the interlock bit is ON.
If you attempt to change a value while the interlock bit is OFF, the
buzzer will sound and the value will not change.
Not used Values can be changed with the increment and decrement touch
switches at any time.
The PT continuously reads the status of the corresponding interlock bit while a
thumbwheel switch's numeral input field that uses the interlock function is being
displayed on the screen. if the interlock bit's status changes, the thumbwheel
switch is disabled or enabled according to the interlock bit's status.
switch setting, the buzzer won't sound even though you attempt to change an
interlocked thumbwheel switch's value.
Interlock Bit Allocation
Interlock bits can be allocated to the following host (PC) areas.
Allocation CV-series PCs
f
CIO Area
f
---
f
Auxiliary Area
f
---
Timer Area,
Timer PVs
--- ---
Counter Area,
Counter PVs
--- ---
--- ---
--- ---
f
DM Area
Lower limit to set
–32,768 ($8000)
–2,147,483,648 ($8000 0000)
Operation
Allocation CS1-series PCs
f
CIO Area
--- HR Area
AR Area
--- LR Area
TC Area,
Timer PVs
TC Area,
---
Timer Completion Flags
TC Area,
Counter PVs
TC Area,
---
Counter Completion Flags
--- WR Area
--- Task Flags
f
DM Area
Section
Upper limit to set
32,767 ($7FFF)
2,147,483,647 ($7FFF FFFF)
Allocation
*1
2-12
f
n
f
n
n
n
n
n
f
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