
8303
Varec, Inc.
43
5.1
Varec 453x series Average Temperature Converter (ATC) Interface (AT4530)
The AT4530 point provides an interface to Varec 453x series Average Temperature
Converter (ATC) temperature transmitter. This point provides average temperature
and individual temperature element data. Other information, such as point and
transmitter status, is also available in this Software Block. The AT4530 point does
not communicate directly to Prothermo devices. All communication must be made
via a Varec 6000 Servo Gauge (STG) or a 4590 Tank Side Monitor.
5.1.1
Parameters
The database parameters used by the AT4530 point are listed and described below:
Config Parameters
Function
WMSeal
Coded 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 “AT4530.00”.
Chan
Communications channel to which the gauge is connected. For an 8203 Dual RS-
485 Communications Interface Module Chan is either 1 or 2.
ID
The Device ID of the Varec 6000 Servo Gauge (STG) or 4590 Tank Side Monitor
connected to the AT4530.
Mode
Parameter used to control the operation of the AT4530 point.
0x0 - Average Thermometer data (8311 Module)
0x100 - AT4530 is connected to a SG6000 (Not a 4590 TSM)
BaudRate
8203 Dual RS-485 Communications Interface Module: Valid values are: 2400,
4800, and 9600. The default is 9600.
Comms Params
Defines the number of data bits and the parity used by the AT4530. Examples
include:
8N - 8 data bits, No parity
8O - 8 data bits, Odd parity
8E - 8 data bits, Even parity
7O - 7 data bits, Odd parity
7E - 7 data bits, Even parity
The default is 8N.
TempUnits
Specifies the engineering units for the temperature data.
F: Fahrenheit
C: Celsius
The TempUnits needs to match the units specified during the gauge setup. The
Temp can be converted from Metric to English (or vice-versa) by setting the
TempConvert parameter in the appropriate MSCAN, RKSCN or WBSCN point.
TempDeadband
The TempDeadband is used to set the Change Of State deadband for
temperature. The default is .25 degrees.
FastScanMode
Places the AT4530 point in the Fast Scan mode. Values are Enable or Disable.
Summary of Contents for 8300 series
Page 2: ......
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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