<8.  OPERATION VIA HART CONFIGURATION TOOL (HART 5)>
8-6
IM 01E30D01-01EN
(2)  Activating the multidrop mode
  About the procedure to call up the Polling 
display, read the User’s Manual of each 
congurationtool.
NOTE
When the same polling address is assigned for 
twoormoreelddevicesinmultidropmode,
communicationwiththeseelddevicesis
disabled.
(3)  Communication when set in the multidrop mode
1.TheHARTcongurationtoolsearchesaeld
device that is set in the multidrop mode when 
theHARTcongurationtoolisturnedon.
 WhentheHARTcongurationtoolis
connectedtotheelddevice,thepolling
address and the tag will be displayed.
2.Selecttheelddevice,andthen
communication with it is possible. The 
communication speed is slow in this case.
3.Tocommunicatewithanotherelddevice,
turn off the power once and then turn it back 
on, or call up “Online” menu, and select 
“Online.”
  The polling address and the tag will appear. 
Selecttheelddevice.
(4)  Release of the multidrop mode
  Call up the “Poll addr” display, and set the 
address to “0.”
8.8.5  Switching HART Protocol Revision
When the output signal code is “-J”, HART protocol 
revision of the device can be selectable from 5 or 7.
The HART protocol revision is set and shipped as 
speciedintheorder.
To change the HART protocol revision after 
shipment, follow the procedure shown below.
IMPORTANT
Whenchangingtheprotocolrevision,conrmthe
items below.
• ProtocolrevisionsupportedbyHART
congurationtoolmustbethesameor
higher than new protocol revision of the 
device
• ConrmthattheDDorDTMwhichissuitable
to new protocol revision of the device is 
installedinthecongurationtool.(Read
Section 8.2 or Section 9.2)
1)   Call up the parameter for protocol revision 
change
• ProceduretocalluptheChg universal rev 
display.
DD DeviceSetup→Detailedsetup→
Deviceinformation→Fielddevice
information→Revision#’s→Chg
universal rev
DTM Conguration→HART→Chg
universal rev 
2)   Activate the “Chg universal rev” method
IMPORTANT
The message is displayed to separate the device 
from the automatic control loop.
Conrmthatthedeviceisseparated.
3)   Input the new revision number
An input column for new protocol revision number is 
displayed.
Input the new HART protocol revision number of “5” 
for HART 5 or “7” for HART 7. 
4)   Applying the new protocol revision
a.Closethecongurationtool 
After completion of Chg universal rev 
method,closetheHARTcongurationtool.
NOTE
When using a FieldMate, close the main display 
of FieldMate.
b. Restart the device  
Turn off the power to the device, and turn it 
on.
IMPORTANT
New protocol revision is applied only after having 
performed restart of the transmitter. 
5) Conrmingthenewprotocolrevision
a.RestarttheHARTcongurationtool
NOTE
Whenexecutetheotherparameterconrmation
or setting change, execute after restart the 
congurationtool.