INFICON PSG55x ATM to Medium Vacuum Gauge (DeviceNet) - Manual (Page 9)

tira58e1-a (2012-03) PxG5xx.cp
9
Device State LED State Description
Power Off Off No power applied to device
Device Self-Test Flashing
green/red
Device is in self-test
Device Operational Green Device is operating normally.
Unrecoverable Fault Red Device has detected an unrecoverable fault
Recoverable Fault Flashing red Device has detected a recoverable fault,
e.g. missing DeviceNet power supply
The network status LED indicates the status of the DeviceNet communication link.
State LED state To indicate
Not Powered/not online Off Device is not online.
• The device has not completed the
Duplicate MAC_ID test yet.
• The device may not be powered,
look at Module Status LED.
Device Self-Test Flashing
green/red
Device is in self-test
Online, not connected Flashing
green
Device is online but has no connections
in the established state.
• The device has passed the
Dup_MAC_ID test, is online, but
has no established connections to
other nodes.
• The device is not allocated to a
master.
Link OK online, connected Green The device is online and has connec-
tions in the established state.
• The device is allocated to a master.
Connection time out Flashing
red
One or more I/O Connections are in the
timed out state.
Critical link failure Red Failed communication device. The
device has detected an error that has
rendered it incapable of communicating
on the network (Duplicate MAC ID, or
Bus–off).
During device initialization, the node address switches are read by the device firm-
ware. If the switches specify a valid DeviceNet MAC ID, i.e. a value from 0 … 63,
this value is used as the device MAC ID. If the specified MAC ID differs from the
value stored in the device’s non-volatile RAM (NVRAM), the new MAC ID will be
saved in NVRAM. If the switches specify an invalid DeviceNet MAC ID, i.e. a value
greater than 63, the current value stored in the device’s NVRAM is used as the
device MAC ID.
In position
of the MSD-switch the MAC ID can be selected via DeviceNet
(class 3, instance 1, attribute 1).
Example: Value of the DeviceNet MAC ID = 63:
P
6
MSD
2
4
LSD
3.3 Indicators and Switches
3.3.1 Module Status LED
3.3.2 Network Status LED
3.3.3 Node Address Switch