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4-3-7. Device description
For commissioning, diagnosis and configuration, make sure that process control systems or
superior configuration systems can access all device data and that the operating structure is
uniform.
The device-specific information required for this is stored as so-called device description data
in special files (the ’Device Description’- DD). This enables the device data to be interpreted
and shown via the configuration program. The DD is thus a kind of ’device driver’.
On the other hand, a CFF file (CFF = Common File Format) is required for the network
configuration in the OFF-line mode.
These files can be acquired as follows:
- Via the Fieldbus Foundation Organization: www.fieldbus.org
4-4. Configuration of the transmitter and FF functions
The FF communication system will only function properly if correctly configured. You can
obtain special configuration and operating programs from various manufacturers for the
configuration.
The predefined function blocks allow uniform access to all the network and fieldbus device
data. A detailed step-by-step description of the procedure for commissioning the FF functions
is given on
→
page 24 together with information on configuring device-specific parameters.
System files
You require the following files for commissioning and configuring the network:
Commissioning
→
device description (DD: *.sym, *.ffo)
Network configuration
→
CFF file (Common File Format)
4-5. Hardware settings (optional)
DIP switches on the rear of the display are used to enable and disable hardware write
protection and the simulation mode (for the Analog Input Block), and to switch (turn) the
display 180°. When write protection is active, parameters cannot be modified. The current
write protection status is displayed in the WRITE_LOCK parameter (Resource Block, see
Section 9).
The display can optionally be ordered with the transmitter, or as an accessory for subsequent
mounting.
The simulation mode via the hardware setting must be changed before the software setting.
ESD - electrostatic discharge
Protect the terminals from electrostatic discharge. Failure to observe this may result in
destruction or malfunction of parts of the electronics.
To set the DIP switches, proceed as follows:
1. Open the cover of the terminal head or field housing.
2. Remove the attached display from the head transmitter.
3. Configure the DIP switch on the rear of the display accordingly. Switch to ON = function
enabled, switch to OFF = function disabled.
4. Fit the display onto the head transmitter in the correct position. The head transmitter
accepts the settings within one second.
5. Secure the cover back onto the terminal head or field housing.