4. Operation
4.1. Overview
18
OWA 100 Adapter User Manual
Rev. 2
July
2011
4. Operation
4.1 Overview
OneWireless Adapter display modes
The OneWireless Adapter contains one Red LED and one Green LED that are used to indicate status.
LED Pattern
HART Status
Radio Status
No LEDs
Battery Low
Battery Low
Red – Red/Red
NO HART
NO KEY
Green – Red/Red
HART WORKING
NO KEY
Red – Green
NO HART
DISCOVER
Green – Green
HART WORKING
DISCOVER
Red – Red
NO HART
NOT CONNECTED
Green – Red
HART WORKING
NOT CONNECTED
Red – Red/Green
NO HART
SECURING
Green – Red/Green
HART WORKING
SECURING
Red – Green/Red
NO HART
JOINING
Green – Green/Red
HART WORKING
JOINING
Red – Green
NO HART
JOINED
Green – Green
HART WORKING
JOINED
Table 1 OWA 100 Adapter Display Modes
OWA Status
Definition
What to do
No LEDs
No Power
Replace battery.
NO HART
OWA cannot communicate with
HART Device.
Check wiring between HART device
and OWA.
Check for 4-20 mA on Loop
connections.
Check that HART Communications
are enabled on the HART device.
Check that HART device is
operational.
Check that voltage drop across HART
device is within specifications – see
HART device datasheet.
Using a Secondary Master, confirm
that HART Device will respond to
HART messages.