Siemens SITRANS FST030 - Input;Output Configuration

If connected as relay (channels 3 and 4 only)
)




)




Normally closed contact (NC) Normally open contact (NO)
⑫ NC ⑬ NO
⑪ NC ⑫ NO
Termination example for channel 3 - relay connection
5.5.3.1 Input/output configuration
All pressure values are handled as absolute pressure. If connected pressure transmitters
measure the pressure in gauge pressure, then please convert to absolute pressure by using the
scaling functionality of the flow transmitters current input channel.
Configura‐
tion
Software configuration Channel
2 3 4
Output
Active
Current output
Frequency output
Pulse output
Status output
● Alarm class
● Alarm item
● NAMUR status signals
X X X
,VLJQDO
U
0
ChXa+
ChXp-
ChXC
8
LQW
+
-
Active
Output
Passive
Current output
Frequency output
Pulse output
Status output
● Alarm class
● Alarm item
● NAMUR status signals
X X X
,VLJQDO
8
H[W
8

+
-
ChXC
ChX+
ChX-
Passive
Connecting
5.5 Transmitter power supply, communications and I/Os connection
SITRANS FST030 (Modbus)
44 Operating Instructions, 08/2018, A5E37367739-AD