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HART Multiplexer System KFD*-HM*-16
Commissioning
5
Commissioning
5.1
Commissioning check list
Note
5.2
Data access to the connected transmitters
24
The commissioning of the Multiplexer Master is summarized in the following check
list. You should follow the list through in sequence, actions that have already been
carried out can be skipped. The steps required for commissioning the Multiplexer
refer to the section in which the respective procedure is described in detail.
The usual commissioning procedure is as follows:
Installation
•
Installation of the field devices
•
Selection and connection of Motherboard and Flex Interface (see also
section 3.3.4)
•
Selection and connection of the isolating modules
•
Connection of the process control system
•
Connection of the Multiplexer Master (see section 3.3.4)
•
Connection of the service station. If necessary, install the interface converters.
Set up the RS 485 address and set the baud rate (see section 5.4.2)
Caution: Note the polarity of the RS 485 connection (see section 4.2.1).
The device must be disconnected briefly from the power supply in order to accept
the values set on the DIP switches.
Operation
•
Wait for the start-up sequence to finish (see section 5.4.4)
•
Start the parameter assignment (see section 5.4.5), in particular, establish the
position of the Multiplexers that are being used in the module table (see
section 7.1.2)
•
Carry out the loop construction (REBUILD, see section 7.1.5)
•
Activate the SCAN function, if required (see section 7.1.7)
The way in which data access to the connected field devices can take place depends
on the operator tool that is being used.
In general, however, the field devices are to be found in a project tree under the
HART Multiplexer Slaves (the Master integrates the Slave unit on Slave address 0),
where device data, parameters and diagnostics can be accessed via menu
functions. The construction of a project tree is decribed in section 6.6.3.
The data, parameters and diagnostic windows accommodate data for the underlying
HART commands, which differ considerably, depending on the field device.
Only the Universal commands and general response codes have the same functions
on all devices, so that information relating to the devices themselves, as well as the
process values and several items of diagnostic information can be represented in a
consistent manner.
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