Digital Output - Siemens SITRANS FC430 Operating Instructions Manual

Functions
8.6 Inputs and outputs
Channel 2 configured as positive direction and channel 3 set to redundancy mode 180˚
Figure 8-14
Figure 8-15
8.6.5

Digital output

The status output can be used to show alarm status or to control the dosing and it can be
signaled on Signal Output or Relay Output.
Depending on the Alarm Mode setting, multiple alarms can be signaled on the output and
selected from the alarm class or the Individual alarms lists.
● Alarm Class: Alarm will be signaled if alarm within the selected alarm class occurs.
● Individual alarms: Alarm will be signaled if selected Individual alarms occurs. It is possible
to select more multiple alarms to be signaled.
Note
Alarm class
The alarm class options depend on the Alarm Mode setting, either NAMUR or Standard
(Siemens Standard), selected in menu item 3.2.1. Both NAMUR and Siemens Standard
alarms and their messages are described in more detail in Sensor diagnostic events
(Page 203).
The control output can be used for controlling discrete valve dosing and analog valve dosing
as described in Dosing (Page 170).
8.6.6 Input
If the input is activated with a logic signal (15 - 30 V DC), the meter carries out an activity
selected in the menu.
168
Positive flow - channel 3 leads by 180°
Negative flow - channel 3 lags by 180°
FC430 (From firmware 4.0)
Operating Instructions, 06/2017, A5E39789392-AA