GE IC697VHD001 Single-slot VMEbus Hard Disk Module
EOK LED Operation
The EOK LED indicates whether the Ethernet interface is
able to perform normal operation. This LED is on for
normal operation and flashing for all other operations.
When a hardware or unrecoverable runtime failure occurs,
the EOK LED blinks a two-digit error code identifying the
failure. The LED first blinks to indicate the most significant
error digit, then after a brief pause blinks again to indicate
the least significant error digit. After a long pause the error
code display repeats. For definitions of LED blink codes,
refer to the TCP/IP Ethernet Communications for
PACSystems User’s Manual, GFK-2224.
LAN LED Operation
The LAN LED indicates access to the Ethernet network.
During normal operation and while waiting for an IP
address, the LAN LED blinks to indicate network activity.
This LED remains on when the Ethernet interface is not
actively accessing the network but the network is
available, and it is off if network access is not available.
The definition of the network being available as indicated
by this LED is that the Ethernet physical interface is
available and one or both of the Ethernet ports is
connected to an active network.
STAT LED Operation
The STAT LED indicates the condition of the Ethernet
interface in normal operational mode. If the STAT LED is
off, an event has been entered into the exception log and
is available for viewing via the Station Manager interface.
The STAT LED is on during normal operation when no
events are logged.
In the other states, the STAT LED is either off or blinking
and helps define the operational state of the module.
Ethernet Port LEDs Operation (100Mb and Link/Activity)
Each of the two Ethernet ports has two green LED
indicators, 100 and LINK. The 100 LED indicates the
network data speed (10 or 100 Mb/sec). This LED is
illuminated if the network connection is 100 Mbps.
The LINK LED indicates the network link status and
activity. This LED is illuminated when the link is physically
connected and blinks when traffic is detected at the port.
Note that traffic at the port does not necessarily mean that
traffic is present at the RX7i Ethernet interface, since the
traffic may be going between ports of the switch.

Ethernet Restart Pushbutton
This pushbutton is used to manually restart the Ethernet
firmware without power cycling the entire control system. It
is recessed to prevent accidental operation.
LED Operation during Restart
When the Ethernet firmware is manually restarted by the
Ethernet pushbutton in any state, the EOK, LAN and
STAT LEDs are briefly turned on in unison as an LED test.
These three LEDs are turned on for ½ second and are
then turned off when the firmware is restarted. The
Ethernet port LEDs are not affected by a manual restart of
the Ethernet firmware.
The LED test is performed only upon a manual pushbutton
restart; there is no LED test when the Station Manager
initiates a restart.
Ethernet Global Data (EGD)
Each RX7i CPU supports up to 255 simultaneous Ethernet
Global Data (EGD) exchanges across all Ethernet
interfaces in the PLC. EGD exchanges must be configured
in the programming software and stored into the CPU. The
EGD configuration can also be loaded from the CPU into
the programming software. Both produced and consumed
exchanges can be configured. RX7i CPUs support using
only part of a consumed EGD exchange, and EGD
exchange production and consumption to the broadcast IP
address of the local subnet.
The RX7i CPU supports 2msec EGD exchange production
and timeout resolution. RX7i EGD exchanges can be