B2-24
IM 34M06H62-02E 2nd Edition : June 2008-00
The STUS register is a read-only register, which is updated after execution of each setup
instruction. When executing a sequence of setup instructions, check the STUS register
after each execution to determine if setup is successful.
If a sequence program has a long execution cycle, a rising edge in the CMDRDY relay
may fail to be detected. In such situations, confirm completion of setup by checking that
the OPE register is reset to 0.
Always confirm that transition to Setup mode has been completed before writing to the
OPE register. If data is written to the OPE register before transition has completed, the
setup process will not start.
Always write new parameter values before executing the corresponding setup instruction
to enable the parameter values. Otherwise, the written values will be ignored.
Sample Program for Setting Controller and I/O parameters
The sample program shown below writes a list of controller and I/O parameters
sequentially on the rising edge of /I00001. It disables the backup function as it sets up the
parameters each time the sequence program runs. The controller and I/O parameters set
up by the sample program include power frequency selection, input type, input range,
and scale parameters. You may modify the sample program to set up other controller and
I/O parameters to suit your application.
After returning from Setup mode, the sample program sets up operation parameters. You
may modify the program to set up other operation parameters as required. As operation
parameters are automatically initialized whenever input range and other I/O parameters
or controller parameters are modified, you must set them again if I/O or controller
parameters are modified. No special procedure is required to enable operation
parameter values, which take effect once written.
CAUTION
CAUTION
CAUTION
CAUTION
To Next Page
Loading...
Need help?
General
