Siemens SIMATIC S5 Equipment Manual page 146

R 02/92
Inhibit interrupt
Inhibit interrupt for supplying the module with new setpoints
KY = x, y x = Disregard
w : Output unchanged, and/or
WI : Output unchanged (high word)
W2 ; Output unchanged (Iowword)
KB : Output of identifier bits, and/or
:
Output of identifier bits (high word) + channel 2
Output of identifier bits (low word) + channel 1
: Output control bits
ST
Special function "inhibit interrupt BEF = IS" or "inhibit interrupt for supplying BEF = IV" is activated
by a one–time call and is deactivated again by another call.
The following table shows the assignment of the "ST parameter".
7 6
SP 1ss
Activation of the "inhibit interrupt for supplying BEF = IV" command is indicated when bit 6 of the
ST parameter is set. The "inhibit interrupt BEF = IS" command has been activated when bit 5 and
bit 6 of the ST parameter are set. The module resets bit 5 and bit 6 when the interrupt inhibit is
deactivated.
The "read actual value BEF = IW" command is used, for example, to provide current information
concerning the module status (ST parameter).
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5 4 3 2 1
Is – S2
Programming Instructions
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