Current Output - Siemens SITRANS F Operating Instructions Manual

Channel
8.6.1

Current output

All four channels can be configured as current output. As the 4 to 20 mA output on channel 1
is Functional Safety approved (SIL 2 on hardware and SIL 3 on software), the configuration
options for channel 1 are limited, see below.
Current output configuration
The following process values can be assigned to the current output:
● Massflow *
● Volumeflow *
● Corrected Volumeflow
● Density *
● Fluid Temperature
● Fraction A (Volumeflow or Massflow)
● Fraction B (Volumeflow or Massflow)
● Fraction A %
● Fraction B %
*: Only the marked process variables can be allocated to the 4 to 20 mA output on Channel
1. All process variables are available through HART and all of channels 2 to 4.
The accuracy specified for the analog output signal applies only within the range 4 to 20 mA.
Lower limit (4 mA) and upper limit (20 mA) can be assigned to any specific flow values.
SITRANS FC430 with HART
Operating Instructions, 03/2012, A5E03361511-01
HW configuration
(fixed when ordering)
Signal input
Functions
8.6 Inputs and outputs
SW configuration
available to the user
Dosing control

Totalizer reset

Remote zero adjust

Force or freeze output(s)

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