Siemens Simatic S7-1500R - Events and Obs

Instruction Description
Time-based IO
TIO_SYNC Synchronize TIO modules
TIO_DI Read in edges at digital input and associated time stamps
TIO_DQ Output edges time-controlled at digital output
1)
Upon a call in the CPU, the instruction provides a negative return value RETVAL.
Unsupported OBs
The CPUs of the S7‑1500R/H redundant system do not support the following OBs:
•
Synchronous cycle interrupt OB
•
OB 67 "MC-PreServo"
•
OB 91 "MC-Servo"
•
OB 92 "MC-Interpolator"
•
OB 95 "MC-PostServo"
9.3 Events and OBs
Start events
The table below gives an overview of the possible event sources for start events and their
OBs:
Table 9-3Start events
Event sources Possible priorities (default
priority)
Possible OB num
bers
Default system
response
1)
Number of OBs
Startup 1 100, ≥123 Ignore 0 to 100
Cyclic program 1 1, ≥123 Ignore 0 to 100
Time-of-day interrupt 2 to 24 (2) 10 to 17, ≥123 Not applicable 0 to 20
Time-delay interrupt 2 to 24 (3) 20 to 23, ≥123 Not applicable 0 to 20
Cyclic interrupt 2 to 24 (8 to 17, frequency
dependent)
30 to 38, ≥123 Not applicable 0 to 20
Hardware interrupt 2 to 26 (16) 40 to 47, ≥123 Ignore 0 to 50
Status interrupt 2 to 24 (4) 55 Ignore 0 or 1
Update alarm 2 to 24 (4) 56 Ignore 0 or 1
Manufacturer-specific or pro
file-specific interrupt
2 to 24 (4) 57 Ignore 0 or 1
I/O redundancy error 2 to 26 (6) 70 Ignore 0 or 1
CPU redundancy error 2 to 26 (26) 72 Ignore 0 or 1
1)
If you have not configured the OB.
2)
See section "Response of S7-1500R/H redundant system when cycle time is exceeded"
220
S7-1500R/H redundant system
System Manual, 11/2022, A5E41814787-AD
Basics of program execution
9.3 Events and OBs