Examples
Programming example for "set system time"
FB 13 is programmed for the "set system time" function. The new values are
transferred in data block DB 10 (data word DW 0 to DW 3).
STEP 5 program:
FB13
NAME :CLKWR
:C DB 10 Open DB 10
:L KH 1500 15 seconds (10th .. 100th sec. = 0!)
:T DW 0
:L KH 9555 24 hour mode, 15 hours 55 minutes
:T DW 1
:L KH 1010 the 10th, Tuesday
:T DW 2
:L KH 9308 1993, August
:T DW 3
:MBR EEC00 Load start address of the DB list
: in the BR
:LRW +10 Load the start address of DB 10 in memory
: (paragraph address) in ACCU 1
:SLD 4 Absolute address of DB 10 (DW 0)
:MAB Load content of ACCU 1 into BR register
:L KB 1 Load function no. ’1’ in ACCU-1-L
:JU OB 121 Set system time
:L KB 0
:><F Scan error bits
:JC =ERRO Jump to error handling
:BEU
:
ERRO : Error handling
:
:BE
Data block DB 10 contains the following information when OB 121 is called:
0: KH = 1500;
1: KH = 9555;
2: KH = 1010;
3: KH = 9308;
4:
OB 121 transfers the required time parameters from DB 10 to the system data
area RS 96 to RS 99.
OB 121: Set/Read System Time
CPU 948 Programming Guide
6 - 10 C79000-G8576-C848-04
To Next Page
Loading...
