Omron NT620S Operation Manual page 249

NT620S/620C Status Control
Procedure 1. Use the support tool to allocate the PT status control area (PC → PT) to the
Application
09002
09003
09002
238
Symbol C Series PCs
DM Data memory
CH Internal/Special Relay
TIM Timer
CNT Counter
HR Holding Relay
AR Auxiliary Relay
LR Link Relay
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 Appendix
L "PC Memory Map" (page 327).
PC memory.
2. Create a PC program to write control data to the "PT status control bits" of the
PT status control area.
S Control timing of PT status control bits
The PT status control area (PC → PT) is not read when the NT620S/620C
starts up. It is only read, and control is only executed, when the contents of the
PT status control area are changed after the NT620S/620C has been started
up.
Since control of the NT620S/620C statuses is executed after the bits corre-
sponding to the PT status control bits have changed, to execute control again
the corresponding bits must be specified again.
This example is of the NT620S/620C being used as a warning lamp by using PT
status control bits.
S Support tool settings
Make the following setting using the support tool.
Allocated word for the PT status control area: CH0100
S PC program
Create the following PC ladder program.
09003
@MOV(21)
#A000
103
@MOV(21)
#9000
103
09003
@ANDW(34)
103
#CFFF
103
Allocated CVM1/CV Series PCs
f
Data memory
f
Internal/Special Relay
Timer
Counter
f
–
f
Auxiliary Relay
f
–
Display the screen, sound continuous buzzer
Word for PT status control
Display the screen, sound intermittent buzzer
Word for PT status control
Word for PT status control
Only continuous and short intermittent
buzzers are "0"
Word for PT status control
Section 5-7
Allocated
f
f
f: OK
: NG
(1)
(2)
(3)