Pepperl+Fuchs KFD Series, Руководство пользователя

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HART Multiplexer System KFD*-HM*-16
Commissioning
5 Commissioning
Checklist for Commissioning
The commissioning of the multiplexer master is summarized in the following checklist.
The steps required for commissioning the multiplexer master refer to the chapters where
the respective procedure is described.
1. Installation of field devices
2. Selection and connection of the termination boards, see chapter 3.4
3. Selection and connection of the control units
4. Connection of the process control system
5. Connection of the multiplexer master, see chapter 4.4
6. Connection of the maintenance station.
If necessary, use interface converters, see chapter 4.4.3.
Observe the polarity of the RS-485 connection, see chapter 4.4.3.
Specify the RS-485 address and the baud rate.
7. Wait for the switch-on process, see chapter 5.2.4.
8. Perform parameterization, see chapter 5.2.5.
9. Specify the multiplexer devices used in the module table, see chapter 7.1.2.
10. Build signal loops, see chapter 7.1.5.
11. If desired, activate the scan function, see chapter 7.1.6.
5.1 Data Access to the Connected Field Devices
The operating tool used determines how data on the connected field devices is accessed.
The field devices are generally found in a project tree beneath the multiplexer slaves.
The multiplexer master integrates the slave unit with slave address 0. Device data,
device parameters, and device diagnoses can be accessed via the project tree.
For the structure of a project tree, see chapter 6.8.
The data, parameter, and diagnostic windows display the data of the underlying
HART commands that differ according to the field device. Only universal commands and
common practice commands have the same function for all devices. The information about the
devices themselves, the process values, and some diagnostic information can thus be
represented in a uniform manner.
5.2 Configuration of the Multiplexer Master
5.2.1 Connection to the Maintenance Station or to the
Process Control System
The connection to the maintenance station or to the process control system is via a multidrop-
enabled RS-485 interface, see chapter 4.4.3. The baud rate for this interface can be set via the
DIP switch. The device address for communication via RS-485 is also set via the DIP switch.
When setting the address, make sure that no address is assigned more than once, as
otherwise this may lead to communication faults and even communication failure. The
baud rate set must match that of the maintenance station.