Cycle Time; Interrupt/Refresh - Omron CX-PROGRAMMER V9 Operation Manual

PART 2: CX-Server PLC Tools
CHAPTER 4 – PLC Setup Component
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...

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...
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.
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.
1. Interrupt Response - Set the interrupt mode to High Speed to interrupt immediately or to
Normal to wait for the current process to complete.
OMRON