5 transmitting device variables via hart, 5 transmitting device variables via hart -7 – Yokogawa RotaMASS 3-Series User Manual

Page 71

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6. OpErATION vIA HArT

6-7

IM 01R04B04-00E-E 8th edition March 01, 2011 -00

All Rights Reserved. Copyright © 2003, Rota Yokogawa

While write protect status is released, enter a new password twice, within 30 sec in “New Password”.
It will not be possible to set a new password when 10 minutes have elapsed.
If a parameter, which is write enabled , is changed while the device is in “Enable wrt 10min”, release time is
extended for further 10 minutes.

NOTE

• When the write protect function is active (its menu bar shows “Yes”), data setting changes in all parameters
of RCCT_F3 are inhibited and cannot be changed using the HART communicator. Also the setting via the
infrared pushbuttons is prohibited.
• If 8 characters are input as “space”, the Write protect function is in release status irrespective of time.
• If both RCCT_F3 and HART Communicator power off and on again within 10 minutes after releasing of
write protect status, “Enable Write” becomes unavailable.

Software seal :
The “Software seal” menu is reserved as evidence so that user is able to confirm whether the Joker
password is used or not. This evidence is saved.
Hotkey → Software seal
The first indication in Software seal menu is ´keep´.
After the joker password setting it shows ´break´.
After setting a new password and release via “Enable wrt 10 min”, the Software seal shows “keep” again.
Key Status :
Enable: Infrared keys are activated. Inhibit: Infrared keys are deactivated.
Master reset :
Default : all parameters set to default except board constants, calibration constants,
detector depending parameter and Concentration measuring settings in service menu.

6.5 Transmitting device variables via HArT

While current output 1 is connected to a HART master it is possible to transmit up to 4 device variables
named primary (PV), secondary (SV), tertiary (TV) and quaternary variable (QV). To select which measure-
ment value will be transmitted in which place there are basically two ways.

Setting via output configuration

The 4 device variables are linked to the settings of the corresponding output according to the table:

device variable

Corresponding output (not option /KF2)

Corresponding output (option /KF2)

PV

Current output 1 (Iout 1)

Current output 1 (Iout 1)

SV

Current output 2 (Iout 2)

Not available

*)

TV

Pulse output 1 (Pout)

*)

Pulse output 1 (Pout)

*)

QV

Pulse output 2 (Sout)

*)

Not available

*)

The unit, in which the device variable is transmitted, is taken from the unit of the corresponding measure-
ment value as shown on the display. To change the order of the device variables, the output configuration
has to be changed.
*) If one of the outputs is not available (option /KF2) or Pulse output 1/2 is configured as Status output or No
Function, the corresponding device variable can be freely selected via HART output configuration menu (see
Chapter 7.15).

Setting via HArT

For setting the device variables there are the two common practice commands #51 (assignment of device
variables) and #53 (unit of device variables). These commands are typically used by other HART devices
like multiplexers.
Since the device variables are linked to the output configuration sending one of this commands will change
the output configuration of ROTAMASS!

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