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1.9
INDICATORS
The 8099 has eight front panel LEDs that normally display the following
conditions:
PWR
Indicates power on
LAN
Indicates that the unit is ready and is connected to an active
LAN. Blinks at user request to identify the unit.
ACT
Indicates messages are being transferred between the unit
and the LAN.
RDY
Indicates the unit has passed self test.
Blinks when all 8099 sockets are used and the unit cannot
open a new socket or link.
TALK
Indicates the unit was sent a device_read command
LSTN
Indicates the unit was sent a device_write command.
SRQ
On when the card is requesting service. When a reverse
Interrupt channel is established and Service requests are
enabled, the SRQ LED will blink momentarily to indicate
that the card has sent an service request message to the host
application.
ERR
Blinks on when the unit has detected a soft error condition
such as a command error, device error or a communication
problem. Steady on when ESR Register error bits 5, 4 or 2
are set.
When the unit is turned on, it performs an internal selftest and startup which
takes about 4 seconds. Only the PWR LED is on during the self test-startup
time.
At the end of a successful selftest, the unit turns the RDY LED on after the
outputs have been configured. At this time the LAN and ACT LEDs display
the card's network status. LAN communication is immediate for static IP ad-
dresses. DHCP IP address assignment times add to the LAN startup time.
If the unit detects a hard self test error, it blinks the error code on its front panel
LEDs. Refer to paragraph 5.4 for a description of the selftest errors and their
possible causes.
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