Manual
1779KP5 Troubleshooting Tools
Chapter 6
63
The 1779-KP5 has 19 indicators on its front panel. The 1779-KP5R has
three additional indicators:
A Redundant-Warning Indicator
Port-Ready and Signal-Quality Indicators for the Redundant Port
These indicators provide you with the following diagnostic information:
When
This Indicator:
Is: Then:
NODE P
ASS
On Green
The host and MAC boards have passed selfdiagnostic tests.
HOST F
AULT
On Red
The host board has either failed the selfdiagnostic test or faulted while in operation.
NODE TEST
On Y
ellow
The host and MAC board are performing selfdiagnostic tests.
MAC F
AULT
On Y
ellow
The MAC board has either failed the selfdiagnostic test, faulted while in operation, or
there is another module with the same node address on the network. A MAC fault also
causes the HOST F
AUL
T indicator to light.
MAC TEST On Y
ellow
The MAC board is performing a selfdiagnostic test.
SAT
On Y
ellow
The node has reached the peak of its ability to process messages.
ACTIVITY
On Green
The 1779KP5 is active on the Data Highway II network.
TRANSMIT
On Y
ellow
The 1779KP5 is sending messages to Data Highway Plus. The transmit light usually
appears to flicker
.
RECEIVE
On Y
ellow
The 1779KP5 is receiving messages from Data Highway Plus. The receiving light
usually appears to flicker or remain solid.
READY
On Green
The 1779KP5 has a message stored in its transmit buffer and is waiting to acquire the
Data Highway Plus token.
ERROR
On Red
An error has occurred while transmitting a message.
EXIT COMPLETE
On Y
ellow
This node has left the logical ring of the Data Highway II link.
IN RING
On Green
This node is a member of the logical ring on the Data Highway II link and can send
messages.
SEEKING MEM
On Y
ellow
This node is trying to become a member of the logical ring, or trying to build a logical ring
in the case that a ring does not already exist. A node must be a member of the ring to
send messages.
Off
This node is not a member of a logical ring and is not seeking membership. It cannot
send messages on the highway
.
DUP ADDR
On Red Another node has the same address on the Data Highway II link. This condition also
places this node into the disconnect state and turns on the MAC F
AUL
T indicator
.
REDUN W
ARN
(1779KP5R Only)
On Y
ellow
A valid signal is being received at only one of the two Data Highway II ports on the
redundant module.
POR
T READY
(Redundant modules
have one for each port.)
On Green
The onboard relay connecting the MAC board to the dropline is ready for messages.
SIG QUAL (Redundant
modules have one for
each port.)
On Green
A valid signal is being received at this Data Highway II port.
On Red No signal or an invalid signal is being received at this Data Highway II port.
AC POWER ON
On Orange
The interface is receiving AC power through the fuse and the AC power switch.
DC POWER ON
On Green The powersupply board is generating DC power within specification.