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The STB NIB 1010 Basic NIM Module
890USE19600 April 2004 23
INTERBUS Data
Exchange LEDs
The following table describes the indicated condition(s) and the colors and blink
patterns that the RC, BA and RD LEDs use to show normal operations and error
conditions for the NIM on an INTERBUS fieldbus.
NIM Activity
LEDs
The table that follows describes the island bus condition(s) communicated by the
LEDs, and the colors and blink patterns used to indicate each condition.
Label Pattern Meaning
BA (green) on The module is transmitting data messages on the network.
off The module is not transmitting data messages on the network.
RC (green) on The island’s incoming bus is correctly connected, and the bus master device is not
sending a bus reset signal.
off The island’s incoming bus is not correctly connected, or the bus master device is sending
a bus reset signal.
RD (yellow) on The island’s outgoing bus is disabled.
off The island’s outgoing bus is enabled.
RUN (green) ERR (red) Meaning
blink 2 blink 2 The island is powering up (self test in progress).
off off The island is initializing—it is not started.
blink 1 off The island has been put in the pre-operational state by the RST button—it is
not started.
blinking (steady) off The NIM is auto-configuring the island bus—the bus is not started.
blink 3 off Initialization is complete, the island bus is configured, the configuration
matches, and the bus is not started.
off blink 6 The NIM detects no STB I/O modules on the island bus.
off blink 2 Assignment error—the NIM has detected a module assignment error; the
island bus is not started.
blink 5 Internal triggering protocol error.
off blinking
(steady)
Fatal error. Because of the severity of the error, no further communications
with the island bus are possible and the NIM stops the island. The following
are fatal errors:
significant internal error
module-ID error
auto-addressing failure
process image error
auto-configuration error
island bus management error
receive/transmit queue software overrun error
on off The island bus is operational.
on blink 3 At least one module does not match—the island bus is operational with a
configuration mismatch.
blink 4 off The island bus is stopped—no further communications with the island are
possible.
off on Fatal error—internal failure.