Keeping the World Flowing
9
Profibus DP option card properties
2 PROFIBUS DP OPTION CARD PROPERTIES
2.1 Mechanical Properties
The PFU module consists of a network interface card, which
fits directly to the main actuator printed circuit board.
All the connectors are polarised to prevent incorrect insertion.
•
Network Interface Card (NIC)
This small printed circuit board carries the Profibus DP, RS485
highway connections and protection circuits.
There are two versions of the Network Interface Card, one
for a single highway and a second for two highways, Simple
or RedCom Dual (RedCom has two highway configurations,
two highways for SR mode or one highway with two network
interface connections for FR use).
Network connector
Fig. 3 : The Profibus single channel NIC, showing the network
connector
2.2 Electrical Properties
The PFU does not sit in the main control path for the actuator
and does not affect the actuator control integrity.
The Profibus DP fieldbus data highway connections are fully
isolated from the actuator electronics.
2.3 Operation and Storage
The PFU is designed to be stored in the actuator and operated
within the same environment as the actuator.
The constraints are:
•
Operating temperature: -40 to +70°C
•
Storage temperature: -50 to +85°C
•
Relative Humidity: 5 to 95% (<50°C)
non-condensing
Refer to actuator manuals for environmental range
applicable for the particular actuator type.
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A4
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