104S
♦
ProLinx Gateway
Configure the Gateway
(Firmware v3.00 and later)
Protocol Manual
ProSoft Technology, Inc.
Page 23 of 157
January 22, 2010
This means the other protocol application or the logic application will be responsible
for clearing the IV Bits for data points which contain valid data at a time interval less
than the amount of time required to accumulate the required number of IV Bit Check
failures. If the process logic or other protocol application does not clear the IV Bits
set by firmware, then all IEC database monitor point values will be reported to the
Client as invalid.
NOTE:
If one or more of the
Cyclic Set IV Time
, the
IV Check Delay Time
, or the
IV Fail Count
parameters are set to zero, the data validity checking feature will be disabled for all points in the IEC
database and data reported to the remote Client will always be reported as valid data. If you wish to
have actual data validity information relayed to the Client, be sure the
Cyclic Set IV Time
, the
IV Check
Delay Time
, and the
IV Fail Count
parameters are set to non-zero values and be sure the application
has been programmed to properly manipulate the IV Bit addresses in the gateway database. Once data
validity checking has been enabled, you can still turn off validity checking on a point-by-point basis by
setting the IV Bit Address to zero (0) for any point you wish to exclude from data validity checking and
reporting.
For more information on the data validity features of this protocol implementation,
refer to Invalid Bit Monitoring.
IV Check Delay Time
1
to
65535
seconds, or
0
to disable Invalid Bit Monitoring
This parameter sets the number of seconds between IV Bit value checks. Every IEC
database monitor point which has an IV Bit address set greater than 0 will have that
bit address checked at the interval specified by this parameter.
Setting this parameter to zero (0) will disable data validity checking.
IV Fail Count
1
to
65535
seconds, or
0
to disable Invaild Bit Monitoring
This parameter sets the number of successive IV Bit check failures which must occur
before the data from a IEC database monitor point will be reported to the remote
Client as invalid data.
An IV Bit Check Failure occurs when the IV Bit value in the gateway database is set
ON, when it contains a value of one (1), at the time an IV Bit Check is performed. IV
Bit Check failures are counted and held in separate IV Bit Check Failure
accumulators for each IEC monitor point configured for validity checking. If the value
in any point's failure accumulator becomes equal to the value set in this parameter,
the gateway will flag the data from this point as invalid and report to the Client this
invalid status, along with the point's data value.
Setting this parameter to zero (0) will disable data validity checking.
Summary of Contents for ProLinx 104S
Page 4: ......