Siemens LR 460 instruction manual J-104

3.This value is filtered using a first order filter based on a time constant provided by the user.

4.The status of the Process Variable (input value) is checked. If the status is Bad, a Fail-safe condition occurs. The output is determined by the Fail-safe Mode of the block.

5.The target mode parameter allows the entire AI block to be overridden by a Manual Out value.

6.The value is checked against the user parameterized warning and alarm limits. (There is an upper and lower warning limit and an upper and lower alarm limit. The unit of the limits corresponds to the unit of the output range. A hysteresis parameter prevents toggling in the Status field of the OUT value.)

7.The OUT VALUE parameter is the value for the cyclic data transfer.

J; Profi;e structure PA

Page J-104 SITRANS LR 460 (PROFIBUS PA) – INSTRUCTION MANUAL 7ML19985JM01