6
Series Six PLC
For a Series Six PLC, the
For a Series Six PLC, the Device Memory screen looks like this example:
Enter or Change the PLC Type
To enter or change the PLC type:
1.Press F3 (chng). A cursor appears at the left of the colon. For a Series Six PLC, enter the num- ber 32768.
2.Press the F3 (entr) key.
D E V I C E M E M O R Y 7
M E M : (location)
t g l c h n g e n t r S B A
The top line shows the
The number on the left will be:
32768 for a Series Six PLC
The number on the right is the actual memory location that will be read.
From this screen, use the
A.Select a different device on the bus (press F4 (SBA)).
B.Select another memory type (press F2 (chng)). See right for instructions.
C.Select another reference location in the dis- played memory type (press F2(chng)). See right for instructions.
D.Display the current memory contents of the specified location (press F3 (entr)).
Enter or Change the Memory Location
To enter or change the memory location:
1.On the same screen, press F1 ( > ) to move the cursor to the right of the colon.
2.Press F2 (chng).
3.Enter a number equal to the actual register number plus 16383. For example, for regis- ter#100, you would enter (16383 + 100), which is 16483:
M E M : 3 2 7 6 8 : 1 6 4 8 3
Expanded I/O Data
Expanded I/O data is mapped into registers and can be accessed as described above. I/O data from channel 0, or the main I/O chain in an expanded I/O system can be displayed using the integer result of the following formula:
((point number ± 1) / 8) + table offset
The table offset is either 8192 for the output table or 8320 for the input table. Example: to display input 672, you would enter: ((672 ± 1) / 8) +8320, which is 8403.
Chapter 6 Reading CPU Memory |
