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PART 2: CX-Server PLC Tools
CHAPTER 4 – PLC Setup Component
OMRON
CX-Server PLC Tools_Page 46
4. Pre-Powerdown
mode
– In this mode the PLC uses the operating mode last used before the
power was turned off.
5.
Use Programming Console
– This is the default setting that allows you to select the
operating mode when online.
SIOU
The SIOU Area DM settings are highly PLC specific and are dependent upon PLC selected and the SIOU mode.
Refer to the online help for detailed information.
IOM
This option specifies that the status of the IOM hold bit is to be
reset
to OFF (ticked) or
maintained
when power is
next turned on.
Forced Status
This option specifies that the status of the forced status hold bit is to be
reset
to OFF (ticked) or
maintained
when
power is next turned on.
Console Language
Select the Console language to either English or Japanese as appropriate (CPM1/1A only).
Expansion Instructions
Set to either Default or User Settings. This option is only available for SRM1, CPM2* PLCs.
CompoBus/S Devices (CPM2*-S*)
Select the Maximum number of CompoBus and S Devices to either 16 or 32.
Communications Mode (CPM2*-S*)
Sets the communications mode to either High-Speed or Long-distance.
Memory Error on Capacitor Failure
Select this option if a memory error on capacitor failure is to be recorded.
Cycle Time
The
Cycle Time
tab of the PLC Setup component allows the total cycle time for the CPU unit to be defined. This
period is the time taken to complete monitoring, program execution and IO port servicing. Use the following
procedure to apply settings in the
Cycle Time
tab.
1, 2, 3…
1.
Cycle Monitor Time
setting. This option sets the time allowed for the CPU unit to cycle
through the type of operations indicated above. If it is exceeded, an error is generated and
the CPU unit is stopped.
2.
Cycle Time
setting. Use this option to define a minimum cycle time by selecting a time
period in the range 1 to 9,999 ms. The default is
Variable
(with the CPU calculating the
cycle time in each cycle).
3.
Servicing Time
setting. This option allows the percentage of the defined cycle time which
can be used to service a port to be set. It can be set for the Peripheral Port, RS232C Port,
Comms Port A and Comms Port B.
Note:
The
Cycle Time
setting is ignored if the
Cycle Monitor Time
setting is longer and vice
versa (provided a minimum time has been defined). The CPU unit waits until the longer
of the two time periods has elapsed before starting the next cycle.
Interrupt/Refresh
The
Interrupt/Refresh
tab of the PLC Setup component allows certain PLCs to interrupt the main program by
input and scheduled interrupts in order to call a subroutine. Use the following procedure to apply settings in the
Interrupt/Refresh
tab.
1, 2, 3…
1.
Interrupt Response
- Set the interrupt mode to
High Speed
to interrupt immediately or to
Normal
to wait for the current process to complete.
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