Quick start with ProLink II
If an error message appears:
• Switch the leads and try again.
• Ensure that you are using the correct COM port.
• Check the physical connection between the PC and the transmitter.
3.2.3
Make a HART/Bell 202 connection
Prerequisites
You will need the following:
• An installed, licensed copy of ProLink II
• An available serial or USB port
• One of the following types of signal converters:
− RS-232 to Bell 202 signal converter
− USB to Bell 202 signal converter
• Adapters as required (e.g. 9-pin to 25-pin)
Important
If the HART security switch is set to
ON
, HART protocol cannot be used to perform any action that
requires writing to the transmitter. For example, you cannot change the configuration, reset totalizers,
or perform calibration using the Field Communicator or ProLink II with a HART connection. When the
HART security switch is set to
OFF
, no functions are disabled.
You can connect ProLink II to the HART clips on the transmitter, to any point in a local HART loop, or to
any point in a HART multidrop network.
If the transmitter is in a hazardous area, do not remove the housing cover while power is
being supplied to the unit. Removing the housing cover while power is supplied to the unit
could cause an explosion. To access transmitter information in a hazardous environment,
use a communication method that does not require removing the transmitter housing cover.
Procedure
1.
To connect to the HART clips:
a.
Remove the transmitter housing cover.
b.
Attach the leads from the signal converter to the HART clips on the face of the transmitter
and add resistance as necessary. See Figure 3-2 .
ProLink II must be connected across a resistance of 250–600 Ω.
Tip
HART connections are polarity-insensitive. It does not matter which lead you attach to which
terminal.
Configuration and Use Manual
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