Instruction manual

Tank Gate Interface
46 Installation and Operations Manual
Application
The GS2000 point provides an interface to GSI Model 2000 Tank Gauge Transmitters. Tank
gauges are connected directly to a Tank Gate Interface.
At startup, a MSSCAN point is automatically created to manage the scanning task. The ID must
match the unit address of the GSI Model 2000.
The SpeedMode must match the configuration of the transmitter. The DataMode must match the
engineering units of the gauge. Conversion from Metric to English (or viceversa) can be
performed be setting the LevelConvert and the TempConvert parameters in the MSSCAN point
associated with the GS2000 point.
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 default is 600.
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 MSSCAN 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 MSSCAN point
Alarm Gauge Alarms. Not used for the GS2000 point.
PntStatus Integer HEX value indicating status of point. Values are:
0x0001: Gauge Not Responding. The first time the gauge does not
respond, the 0x08 bit is set. On the second try, the 0x01 bit is set.
0x0002: Parity Error on last scan
0x0004: Data from the Gauge is Not Valid
0x0008: Timeout Error. The Motherboard monitors the Elapse
parameter. If data is not being updated (due to the 8210
malfunctioning), the 0x08 bit will be set.
0x0010: Gauge did not respond on last scan (pre-fail)
0x0020: Invalid Level
0x0040: Large change in Level or Temperature
0x0800: Mark Line shorted to ground
0x0400: Space Line shorted to ground
0x0200: Blown Fuse
0x0100: No +48 VDC
GaugeStatus Byte value indicating status of the gauge. Refer to the transmitter manual
for details on the GaugeStatus
Elapse Time of the last Change of State
Interval This parameter displays the number of hours:minutes:seconds since the
point was last updated.
Raw1 Raw data from gauge. Value reported as hexidecimal value.
Raw2 Raw data from gauge. Value reported as hexidecimal value.
Configuration
Parameters
Function