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R 11/92
Digital Output Active
6.7.4
Method of
operation
Underflow
The digital output is switched active when the counting value is in the range
from interrupt value to overflow. The output remains active at least for the
duration of the pulse set with a plug–in jumper (+ section 2.3).
Parameter
register 1/2
Control register 3
The respective digital output must be enabled with the EDQ bit in control
register 3.
Control register 3
Hysteresis
The following hysteresises take effect on the limits of the active range.
Interrupt value:
Oveflow/underflow:
@SiemensA(31992, C)rder No:6ES5998-0KP21
in the Range Between the Interrupt Value and Overflow
Interrupt value
15
14
13
12
11
10
9
0
0
O = Digital output switched off
1 = Digital output enabled
Hysteresis for interrupt value (+ section 4.6)
Overflow/underflow hysteresis (+ section 6.2.1)
Operating Modes and Functions
8
7
6
5
4
3
2
I
Overflow
1
0
6 – 37
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