WHA-GW-*
Operation
22
1981
2011
-0
7
73
Ethernet Communication
Fault
Non-recoverable hardware fault within the communication
controller associated with the Ethernet interface.
Electronic Defect
Non-recoverable hardware fault within the Gateway
different from the other faults in the "Extended Device
Malfunction" category.
RS-485 Communication
Fault
Non-recoverable hardware fault within the communication
controller associated with the RS-485 interface.
Gateway Operation in Progress
Block transfer
When the checkbox is activated, this shows that block-
transfer activity is going on in the Gateway.
Delayed answer
When the checkbox is activated, this shows that delayed-
answer activity is going on in the Gateway, which can be
related either to a Gateway buffer or to a connected
device's buffer.
Self-test
This bit is associated with a self-test activity triggered by
CMD 41. The checkbox remains activated until the activity
has been completed.
File update
If required, the Gateway can write persistent (i.e. non-
volatile) information to its local file system. The checkbox
remains activated as long as information is being written to
the file system.
Start-up phase
At each power-up or software restart / reset (triggered by
CMD 42 & 141), the Gateway polls all devices within the
Instrument List to check their communication statuses and
to update their identity information. The checkbox remains
activated until the start-up phase has been completed.
Extended List Changes
Instrument List changed
This checkbox is activated whenever the Instrument List
content is changing.
Active Device List changed
This checkbox is activated whenever the "Active Device
list" content is changing. This is the case when a
"communication loss" or a "communication recovered"
event takes place for a device.
Cumulative Device Status
These bits are set to 1 whenever the related status applies to one or more devices (or
sub-devices) connected to the gateway.
Primary Variable out of
Limits
The PV is beyond its operating limits.
Non-Primary Variable out of
Limits
A device variable not mapped to the PV is beyond its
operating limits.
Loop Current Saturated
The loop current has reached its upper (or lower) endpoint
limit and cannot increase (or decrease) any further.
Loop Current Fixed
The loop current is being held at a fixed value and is not
responding to process variations.
More status available
More status information is available via Command 48
(Read Additional Status Information).
Cold Start
A power failure or device reset has occurred.
Parameter
Description
