
8303
Varec, Inc.
91
5.14 Varec 4590 Tank Side Monitor (TSM) Interface (TM4590)
The TM4590 point provides an interface to the Varec 4590 Tank Side Monitor. This
point provides level, temperature, interface and density data. Other information,
such as point and gauge status, is also available in this Software Block. The 4590
TSM can communicate using a number of different protocols, including Modbus &
Whessoe Bus.
5.14.1 Parameters
The database parameters used by the TM4590 point are listed and described below:
Config/Constant
Parameters
Function
WMSeal
Coded parameter value that enables Weights & Measures password protection.
Tag
A Tag can contain 15 bytes of data and can include any printable ASCII character.
Tags can be used to identify points indicating the use of the point such as “Tank
22.” The default tag is set to “TM4590.00”.
Chan
Communications channel to which the gauge is connected. For an 8303 Dual RS-
485 Communications Interface Module or 8311 Current Loop (Whessoe Bus)
Interface Module Chan is either 1 or 2.
ID
The Device ID of the 4590 TSM.
BaudRate
Baud Rate for communications to the Slave device.
8203 Dual RS-485 Communications Interface Module: Valid values are: 2400,
4800, and 9600. The default is 9600.
8211 Current Loop (Whessoe Bus) Interface Module: Valid values are: 1200, 2400.
ComParams
Defines the number of data bits and the parity used by the com port. Valid values
include:
8N - 8 data bits, No parity
8O - 8 data bits, Odd parity
8E - 8 data bits, Even parity
7O - 7 data bits, Odd parity7E - 7 data bits, Even parity
The default is 8N.
Mode
Parameter used to control the operation of the TM4590 point. It has different
meanings, depending on 8300 TGI is used.
8303 Dual RS-485 Communications Interface Module:
0x0010: Use old NMS operational status codes
For 8211 Whessoe Bus Communications Interface Module:
0x0: Level, Temp, Pressure, % level, Status, Density, ISH
0x01: Status only
0x02: Level, Temp, % Level, Pressure, ISH only
0x04: Density only
0x08: Level, Temp, %level, pressure only
LevelDeadband
The LevelDeadband sets the deadband for the Change of State mode. The default
is 0.
TempDeadband
The TempDeadband is used to set the Change of State deadband for the
temperature. The default is .25 degrees.
FastScanMode
Places the TM4590 point in the Fast Scan mode. Values are Enable or Disable.
Summary of Contents for 8300 series
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Page 6: ...Tank Gate Interface iv Installation and Operations Manual ...
Page 14: ...Overview Tank Gate Interface 4 Installation and Operations Manual ...
Page 50: ...Software Description Tank Gate Interface 40 Installation and Operations Manual ...
Page 52: ...Dual RS 485 MODBUS Software Blocks Tank Gate Interface 42 Installation and Operations Manual ...
Page 56: ...Tank Gate Interface 46 Installation and Operations Manual ...
Page 68: ...Tank Gate Interface 58 Installation and Operations Manual ...
Page 100: ...Tank Gate Interface 90 Installation and Operations Manual ...
Page 112: ...Tank Gate Interface 102 Installation and Operations Manual ...
Page 115: ...8303 Installation Varec Inc 105 s Figure 7 2 Tank Gate Interface Dimensions 197 204 125 ...
Page 148: ...Appendix Order Codes Tank Gate Interface 138 Installation and Operations Manual ...
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