Total Solution for Industrial Automation
9
PWM Output Module User’s manual
3
Data Memory
Data memory is largely classified into two categories: I/O memory and buffer
memory. I/O memory exchanges I/O data with the CPU through the X and Y area.
Buffer memory exchanges user data with data areas in CPU module using FROM
∙
FROMP/TO
∙
TOP instruction.
[Figure 5] Data exchange between PWM module and CPU
3.1
I/O Memory
I/O memory is an input/output memory area which is provided by the module. This
area can be operated in the scan program. The addresses of the X and Y are
determined by the location where the module is mounted. Please refer to Appendix
2 for details. PWM output module can offer 32-pin output through the I/O memory
area. Please refer to the table in 3.1.1 to check for more details of each point.
3.1.1
Output area
An output area of digital output module outputs the value of data received from the
CPU.
•
External indicator: LED (a LED per channel)
•
32 Y points (Yn0 ~ Y(n+1)F) (‘n’ states a number that can be decided by
mounted in slots.