Technical data

Table Of Contents
SFCs for Handling Time-of-Day Interrupts
System Software for S7-300/400 System and Standard Functions - Volume 1/2
9-6
A5E00709327-01
9.5 Activating a Time-of-Day Interrupt with SFC 30
"ACT_TINT"
Description
With SFC 30 "ACT_TINT" (activate time-of-day interrupt), you can activate a time-
of-day interrupt organization block.
Parameter Declaration Data Type Memory Area Description
OB_NR INPUT INT I, Q, M, D, L,
constant
Number of the OB to be activated (OB10 to
OB17).
RET_VAL OUTPUT INT I, Q, M, D, L If an error occurs while the function is
active, the actual parameter of RET_VAL
contains an error code.
Error Information
Error Code (W#16#...) Explanation
0000 No error occurred.
8090 Incorrect parameter OB_NR.
80A0 Start date/time-of day not set for the respective time-of-day interrupt OB.
80A1 The activated time is in the past. This error only occurs if execution = once
is selected.
8xyy General error information, see Evaluating Errors with Output Parameter
RET_VAL