Siemens M7-400, S7-400 Selection Register Rising Edge , Selection Register Falling Edge

Interface Submodules
13-29
S7-400, M7-400 Programmable Controllers Module Specifications
A5E00069467-07
Selection Register Rising Edge
Tables 13-32 and 13-33 give an overview of the selection register for interrupt
generation at a rising edge of a digital input.
Table 13-32 Offset Address for the Selection Register Rising Edge (IF 961-DIO)
Offset
Address Function Remarks
5Selection register rising edge Read/write
Table 13-33 Meaning of the Bits in the Selection Register Rising Edge (IF 961-DIO)
Bit Function = 0 = 1
20Interrupt generation at rising edge of the
digital input channel 0 Disabled Enabled
: : : :
27Interrupt generation at rising edge of the
digital input channel 7 Disabled Enabled
Selection Register Falling Edge
Tables 13-34 and 13-35 give an overview of the selection register for interrupt
generation at a falling edge of a digital input.
Table 13-34 Offset Address for the Selection Register Falling Edge (IF 961-DIO)
Offset Address Function Remarks
6Selection register falling edge Read/write
Table 13-35 Meaning of the Bits in the Selection Register Falling Edge (IF 961-DIO)
Bit Function = 0 = 1
20Interrupt generation at falling edge of the digital
input channel 0 Disabled Enabled
: : : :
27Interrupt generation at falling edge of the digital
input channel 7 Disabled Enabled