
G2-2 Series DeviceLogix Quick Start Manual
Page 10
3835054 TDG22DLQS3-0 1/07
Subject to change without notice
www.numatics.com/fieldbus
9) LED Functions
Upon power up, the LEDs indicate the status of the unit. There are seven LEDs on the G2-2 DeviceLogix
node; Network Status, Module Status, Run/Force I/O, two for internal fuse integrity, and two for Aux. Power
status.
LED Name Color Status Description
Off OFF
Stand Alone
– Network cable is not connected to node. Normal
Operation
Networked
- Device is not on-line; Bus power not applied; Physical
problem with network; Improper baud rate.
ON Normal operation. Device is on-line and has established a
connection.Green
FLASHING Device is on-line but has no established connections.
ON
The device has detected a bus error that has rendered it incapable
of communicating on the network; Duplicate MAC ID; “Bus Off”
condition; Physical problem with network.
NET STATUS
(Network Status)
Red
FLASHING Communication failure – one or more I/O connections have timed
out.
OFF Critical hardware fault. Microprocessor is not running.
ON Normal operation. The device is operating properly.
Green
FLASHING
Stand Alone
– If logic is disabled and communication status
override is disabled then network power is absent.
Networked
- Network power is absent.
MOD STATUS
(Module Status)
Green Red FLASHING Module is in self-test mode.
OFF Logic is disabled
ON Logic is enabled
RUN / FORCE
I/O Yellow
FLASHING Logic is enabled and local forces are applied
OFF Internal fuse
F1
is OK (valid only when power is applied to
+24V
VLV / OUT
pin on Aux. Power connector).
FUSE 1 Red
ON Internal fuse
F1
is open; No power is internally provided to valves or
outputs. Communication NOT affected.
OFF No DC Power present at
+24V
VLV / OUT
pin on Aux. Power
connector.+24V VLV/OUT Green
ON DC Power applied to
+24V
VLV / OUT
pin on Aux. Power Connector.
OFF Internal fuse
F2
is OK (valid only when power is applied to
+24V
NODE / IN
pin on Aux. Power connector.
FUSE 2 Red
ON Internal fuse
F2
is open; No power is internally provided to node
electronics or inputs. Communication Node will not function.
OFF No DC Power present at
+24V
NODE / IN
pin on Aux. Power
connector.
+24V NODE/IN Green
ON DC Power applied to
+24V
NODE / IN
pin on Aux. Power connector.
+24V NODE/IN
FUSE 2
FUSE 1
+24V VLV/OUT
MOD STATUS
NET STATUS
TM
+24V NODE/IN
FUSE 2
FUSE 1
+24V VLV/OUT
MOD STATUS
NET STATUS
TM