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Reference Manual
00809-0100-4840, Rev CB
Appendix F: Programming the 3102 and 3105 using HART
February 2015
Programming the 3102 and 3105 using HART
F.3.24 Relay 2 mode (P073) on the Rosemount 3102
On the Rosemount 3102, RL2 is factory-set to be a fault relay. In this mode, it de-energizes under
Lost Echo (LE) or fault conditions. The relay de-energizes if the power fails.
The RL2 mode of may be changed to control mode by selecting “Setpoint” and then entering
RL2 PV On Point (P074) and RL2 PV Off Point (P075) values. All relay set-point values must be
entered in the PV units.
The on point value may be greater or smaller than the off point value.
Note
The relay RL2 is switched off by selecting “Setpoint” and then setting the On and Off points to
an identical process value.
Field Communicator or AMS Device
Manager
To view or change the damping
1. From the Home screen, select 2: Configure.
2. Select 2: Manual Setup.
3. Select 4: Relay Output.
4. Select 2: Relay 2, and then select 1: Relay 2 Mode P073.
5. If a change is required:
(a) Select new mode, and then select “ENTER” to save the selection.
(b) Select “Send” or “Apply” to update the transmitter.
Note
When messages appear, take appropriate action if needed and select “OK”.
Rosemount 3490 Series Control Unit
To view or change the damping
1. From the Main Menu screen, select SETUP.
2. Select the transmitter (e.g. “Tx1: 3102”).
3. Select OUTPUT, and then select RELAYS.
4. Select Relay 2, and then select Relay 2 Mode.
5. Follow the on-screen instructions to select the new mode.
(Use the Enter ( ) key if prompted to change mode to “off-line”).
6. Select “Quit” to exit to the previous menu.
Fast Keys
2, 2, 4, 2, 1
Relay 2 Mode P073
Fault
Setpoint
Fault
ENTER
ESC
(Field Communicator Screen Shown)
Relay 2 Mode P073
Fault
Esc=Quit =Edit
(Rosemount 3491 Screen Shown)
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