Special Controller Functions
Appendix C
C–8
To read/write the contents of controller Counter files:
1. Select item 1 from the Special Menu to access the P–A/D function.
You are prompted for a file type:
Select file type:
(O)Output
PREV/NEXT To Scroll
ENTER To Select
2. Press [NEXT] and [PREV] keys to scroll through the file types.
Select (C) Counter and press [
].
You are prompted for a counter file number:
Select File Number
5
Press ENTER
File Number
5
Word Address: 0
File Number:
5
Element Addr: 0
PLC-5 DF1
Operating System
DH485
Operating System
Select File Number
5
Press ENTER
3. Enter the counter file number and word or element address.
You are shown the value at that address:
C005:000 Acc 00000
Pre 00000
CU Cd DN OV UN
0
0
0
0
0
Bits
(Count Up Enable,
Count Down Enable
Done
Overflow
Underflow)
4. To change the Acc and Pre values or element address, move the cursor to
the data field using the [PREV] or [NEXT] keys. Enter the new data.
5. Press the [
] key to enter new accumulator or preset values to the
displayed counter address.
6. Pressing the [PREV MENU] key at any time returns to the P–A/D file
select menu.
Reading / Writing Controller
Counter Files
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