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1 Introduction
CJ-series Serial Communications Units Operation Manual for NJ-series CPU Unit(W494)
1-8 B
asic Operating
P
roced
ure
1
1
-8-2
E
x
planation of Procedure
Turn on the power supply of the Controller.
An I/O Setting Check Error occurs when there is a Unit Configuration in the CPU Unit which does
not match the actual Unit Configuration. In this case, restart the Controller in Procedure 8 to cancel
the error.
Transfer user programs, Unit Configuration and Setup, and variable information from Sysmac Studio
to the CPU Unit.
At this time, special function setting data is not yet transferred in this Unit.
z
Controller Reset
Reset the Controller. The System Settings specified in the Edit Special Unit Setting will be trans-
ferred from the CPU Unit to the Unit.
z
Restarting
Restart the Unit by turning the restart bit in the system-defined variable, from FALSE to TRUE. Or
restart the communications port by turning either Port 1 or 2 Setting Changing Flag to TRUE. Then
the System Settings are transferred.
• Restart Bits (** indicates unit numbers.)
• Port 1/2 Settings Changing Flag (** indicates unit numbers.)
Execute the communications in Serial Communications Mode as set. The user program controls the
Unit by using the device variables for CJ-series Unit allocated to the I/O ports corresponding to soft-
ware switches and various flags.
Procedure 6. Turn ON the Power Supply of Controller
Procedure 7. Transfer the User Program
Procedure 8. Reflect Unit Settings
System-defined
variable
Type R/W Name Function
_CJB_CBU**Restart BOOL RW CPU Bus Unit Restart
Bits TRUE: CPU Bus Units are restarted.
FALSE: CPU Bus Units are not restarted.
Default: FALSE
System-defined
variable
Type R/W Name Function
_CJB_SCU**P1ChgSta BOOL RW Serial Communica-
tions Unit ** Port 1 Set-
tings Changing Flag TRUE: Port 1 Serial Communications Port
Settings will change or are changing.
FALSE: All other statuses
Default: FALSE
_CJB_SCU**P2ChgSta BOOL RW Serial Communica-
tions Unit ** Port 2 Set-
tings Changing Flag TRUE: Port 2 Serial Communications Port
Settings will change or are changing.
FALSE: All other statuses
Default: FALSE
Procedure 9. Main operation