Interrupts - Siemens SIMATIC ET 200SP Manual

Interrupts/diagnostics interrupts

5.2 Interrupts

5.2 Interrupts
The analog input module AI 2×U/I 2-/4-wire HS supports hardware and diagnostic interrupts.
Evaluating hardware interrupts with IO controller
The module generates a hardware interrupt at the following events:
● Low limit 1 violated
● High limit 1 violated
● Low limit 2 violated
● High limit 2 violated
If an interrupt occurs, a corresponding interrupt OB is called in the CPU of the IO controller.
S7-1500
Detailed information on the event is available in the STEP 7 online help.
The block interface is shown here with optimized block access, which is set in the TIA Portal
by default.
Name Data type
LADDR HW_IO
USI WORD
IChannel USInt
EventType Byte
28
Comment
Hardware identifier of the module triggering the interrupt
USI (High/Low)
Channel that triggered the hardware interrupt
Error event
Analog input module AI 2xU/I 2-/4-wire HS (6ES7134-6HB00-0DA1)
Manual, 09/2018, A5E03576060-AF