Siemens SIMATIC S7-1200 - Page 36

A5E33284667-AF Page 35
Extended instructions
Basic instructions
Communication
Technology
S7-300
S7-400
S7-1200 S7-1500
Description LAD/FBD
STL
(not S7-1200)
SCL
Time-of-day functions
✔
✔
✔
✔
Set time-of-day (STEP 7 V 5x: SET_CLK)
WR_SYS_T
✔
✔
✔
✔
Read time-of-day (STEP 7 V 5x: READ_CLK)
RD_SYS_T
✔
✔
Read local time
RD_LOC_T
✔
✔
Write local time
WR_LOC_T
✔
✔
Synchronize slave clocks
SNC_RTCB
✔
✔
✔
Read system time
TIME_TCK
✔
✔
Set time zone
SET_TIMEZONE
✔
✔
✔
✔
Runtime meters
RTM
✔
✔
Set runtime meters
SET_RTM
✔
✔
Start and stop runtime meters
CTRL_RTM
✔
✔
Read runtime meters
READ_RTM
✔
Set time-of-day and time-of-day status
SET_CLKS
Local time
✔
✔
Calculate local time
LOC_TIME
✔
✔
Calculate local time from base time
BT_LT
✔
✔
Calculate base time from local time
LT_BT
✔
✔
Set time-of-day interrupt using local time
S_LTINT