VortexMaster FSV430, FSV450 SwirlMaster FSS430, FSS450 | CI/FSV/FSS/430/450-EN  Rev. G  31 
 
 
5.6.4  Devices with HART communication 
Current output / HART output 
 
Fig. 31:  Terminals 
 
Terminal Function / comment 
PWR/COMM +  Power supply, current output / HART output 
PWR/COMM - 
EXT. METER  Not assigned 
 
Current output / HART output, digital output and analog 
input 
 
Fig. 32:  Terminals 
 
Terminal Function / comment 
PWR/COMM +  Power supply, current output / HART output 
PWR/COMM - 
EXT. METER +  Current output 4 ... 20 mA for external display 
DIGITAL OUTPUT 1+  Digital output, positive pole 
DIGITAL OUTPUT 2  Bridge after terminal 1+, NAMUR output 
deactivated 
DIGITAL OUTPUT 3  Bridge after terminal 4-, NAMUR output 
activated 
DIGITAL OUTPUT 4-  Digital output, negative pole 
ANALOG INPUT +  Analog input 4 ... 20 mA for remote transmitter, 
e.g. for temperature, pressure, etc. 
ANALOG INPUT - 
 
 
 
HART communication 
 
Fig. 33:  HART communication (example) 
1 Internal earthing terminal  2 Power supply, current output / 
HART output  3 Load resistance  4 Power supply / supply isolator  
5 PLC / DCS  6 HART Handheld terminal 7 External indicator  
8 External earthing terminal  9 Terminal for external indicator 
 
For connecting the signal voltage / supply voltage, twisted 
cables with a conductor cross-section of 18 … 22 AWG / 
0.8 … 0.35 mm
2
 and a maximum length of 1500 m (4921 ft) 
must be used. For longer leads a greater cable cross section 
is required. 
For shielded cables the cable shielding must only be placed on 
one side (not on both sides).  
For the earthing on the transmitter, the inner terminal with the 
corresponding marking can also be used.  
The output signal (4     20 mA) and the power supply are 
conducted via the same conductor pair.  
The transmitter works with a supply voltage between 
12 ... 42 V DC. For devices with the type of protection "Ex ia, 
intrinsic safety" (FM, CSA, and SAA approval), the supply 
voltage must not exceed 30 V DC. In some countries the 
maximum supply voltage is limited to lower values. The 
permissible supply voltage is specified on the name plate on 
the top of the transmitter.  
 
NOTICE
  
Any configuration changes are saved in sensor memory only 
if no HART communication is taking place. To ensure that 
changes are safely stored, make sure that HART 
communication has ended before disconnecting the device 
from the network. 
 
G11766
G11767
G11964
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