Varec 8300 series, Installation And Operation Manual, Page: 109 / 150

8303
Varec, Inc. 99
6.1 Gauging Systems Inc. Model 2000 ASCII Tank Trasmitter Interface (GSI)
The GS2000 point provides an interface to GSI 2000 ASCII Tank Gauge transmitters.
This point provides both level and temperature data. Point and gauge status
information is also available in this point block. This Software Block executes on the
8303 Tank Gate Interface.
6.1.1 Parameters
The database parameters used by the GS2000 point are listed and described below:
Configuration Parameters Function
Tag The point description can contain 30 bytes of data and can include any
printable ASCII character. Descriptions can be used as information
relevant to any aspect of the point, such as its use, location, operating
information, etc. The default description is set to “GS2000.00”.
Description The point description can contain 30 bytes of data and can include any
printable ASCII character. Descriptions can be used as information
relevant to any aspect of the point, such as its use, location, operating
information, etc. The default description is set to “GS2000.00”.
ID Physical Address of the tank gauge transmitter (0-999).
Chan Channel Number.
LevelDeadband Specifies the amount of change in the Level that must occur for the
Value to be updated each Change of State period. The default is 0.
LevelOffset Specifies the amount of offset to add to the Level. The default is 0.
TempDeadband Specifies the amount of change in the Temp that must occur for the
Value to be updated each Change of State period. The default is 0.25.
TempOffset Specifies the amount of offset to add to the Temp. The default is 0.
Report Causes automatic notification to the Host (in response to a Change of
State Request) when the Value changes State. Parameter value can be
High, Low or No. Report=No disables notification. Points with Report =
High will be sent before points with Report = Low. The default is High.
Maxtime Specifies the maximum time (in secs) between automatic Change of
State responses being sent to the Host. Report must be set to either Low
or High for the Value parameter to be sent in response to a Change of
State Request. A value of 0 disables this option. Non-zero values cause
responses to be sent even if the value has not changed since the last
message. The maximum is 255 seconds. The default is 60.
Dynamic Parameters Function
Level Floating point value representing the tank level. The Level will be
presented in decimal feet or meters, depending upon the LevelConvert
parameter of the GSISCN point.
Temp Floating point value representing the tank temperature. The
Temperature will be presented in Fahrenheit or Celsius, depending upon
the TempConvert parameter of the GSISCN point
Alarm Gauge Alarms. Not used for the GS2000 point.