Varec TankGate Interface 8315 Series - Manual (Page 57)

8315 TGI
Varec, Inc. 47
5.2 L&J MCG1200 Tank Gauge (LJ1200)
The LJ1200 point provides an interface to the L&J MCG1200 Data Acquisition
Interface. This point provides relay and other interface values to the user. Point and
gauge status information is also available in this point block. This point executes on
the 8315 Tank Gate Interface.
5.2.1 Parameters
The database parameters used by the LJ1200 point are listed and described below:
Configuration Parameters Function
Tag A Tag can contain 15 bytes of data and can include any printable ASCII
character. Tags can be used to identify the name of the tank being
monitored The default tag is set to “LJ1200.00”.
Description A description can contain 30 bytes of data and can include any
printable ASCII character.
FastScanMode Places the LJ1200 in Fast Scan Mode. Values are Enable or Disable.
ID Physical Address (0-127). The default is 0.
Mode Relay Operation Mode. This controls the operation of the LJ1200s 8
relay outputs. Setting the corresponding relay digit sets the coded
variables as seen below.
0: On / Off
1: Close / Open
2: Enable / Disable
3: Active / Inactive
4: Start / Stop
5: Off / On
6: Open / Close
7: Disable / Enable
8: Inactive / Active
9: Stop / Start
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 data being sent to the Host in response to a Change of State
Request. 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 240.
Watchdog Enables the watchdog task on the Motherboard. The watchdog task
monitors the LJ1200 point on the Model 8215 and verifies it is
scanning for gauges. If the Model 8215 fails, the 0x4000 and the
0x0010 bits of the PntStatus will be set to indicate the failure.