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Specifications
Protos COMFF 3400(X)-085
Foundation Fieldbus FF-H1
)
COMFF 3400X-085:
Digital communication in hazardous areas via
current modulation (Ex ia IIC)
Physical interface
According to IEC 61158-2
Transfer rate
31.25 kbits/s
Communication protocol
FF-816
Profile
FF_H1 (Foundation Fieldbus)
Bus address
Visible on the device but not adjustable
Supply voltage (FISCO)
Bus supply:
Linear barrier:
9 … 17.5 V
9 … 24 V
Current consumption
< 12 mA
Max. current in case of fault
(FDE)
< 17 mA
FF communication model
Certified to ITK 4.6
1 Physical Block
5 transducer blocks
8 AI Function blocks
4 DI function blocks
4 DO Function blocks
1 AO function block
Device description
Connection to signal processing
Output of measured values with status via the Fieldbus
Output of messages with status via the Fieldbus
Control via the Fieldbus
for analog compensation signals (e.g. O2 process pressure)