Installation Instructions Owner's manual

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
00000
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