Siemens SINUMERIK 840C User Manual
Page 62
09.95
Siemens AG 2001
All Rights Reserved
6FC5197–
j
AA50
3-12
SINUMERIK 840C (IA)
INPUT:
Enter new value for the selected word or bit
RECALL:
Return to preceding display
Example of operation
S
Reading input, output and flag words
Softkey: IW, QW, FW
Keys
Preselect word
number 14
+
+
S
Reading data words
Softkey DB
to select a DB
Softkey DX
to select a DX
Preselect DB (DX) with
Preselect data word with DB
Preselect data words from two contiguous DBs (DXs) with DD
Example:
Selecting DW 5 in DB 10
PLC Status softkey
DW softkey
Keys
to select DB 10
+
+
Softkey DW 1)
Keys
to preselect word no. 5
+
S
Reading the contents of timers and counters
Softkey: T or C
Keys
Preselect timer or counter number 6
+
The time is always displayed in seconds, regardless of how it was program-
med in STEP 5. The count is displayed in BCD code.
Display formats
KM:
Binary
numbers
0 and 1
KH:
Hexadecimal
numbers
0 to
F
KF:
Fixed-point
numbers
0 to
9
KT:
Time
numbers
0.01 to 999
KZ:
Count
numbers
0 to 999
3 PLC Installation
3.5.4 PLC status
1) Actuation of the DD softkey selects data words from DB10 and DB11, e.g. DW5 in DB10 and in DB11.