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Data Memory Area (D) Section 4-14
4-13-3 Changing the BCD or Binary Mode for Counters and Timers
The refresh method for set values and present values for timers and counters
can be changed from BCD mode (0000 to 9999) to binary method (0000 to
FFFF) using the CX-Programmer
This setting is made in common for all tasks for all timers and counters.
1. Right-click New PLC in the project tree and select Properties.
2. Select the Execute Timer/Counter as Binary Option in the PLC Properties
Dialog Box. The timers and counters for all tasks will be executed in binary
mode.
4-14 Data Memory Area (D)
The DM Area contains 32,768 words with addresses ranging from D0 to
D32767. This data area is used for general data storage and manipulation
and is accessible only by word.
Data in the DM Area is retained when the PLC’s power is cycled or the PLC’s
operating mode is changed from PROGRAM mode to RUN/MONITOR mode
or vice-versa.
Although bits in the DM Area cannot be accessed directly, the status of these
bits can be accessed with the BIT TEST instructions, TST(350) and
TSTN(351).
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