RS232 Gateways

Veeder Root TLC300-350-450 Gateway – Modbus and BACnet and HTML-Web-

Originally developed for the 350 series the driver has been tested on both 300 and 450 systems. We can convert any data to most other protocols and the driver supports system , in tank, inventory and system reports. Control functions such as reset are also supported


  • 1. RS-232 Communication Interface with Auxiliary Port provides 9 or 25-pin D-connectors for data transmission to computers or point-of-sale terminals.
  • 2. Automatic continuous leak sensing: tank interstitial space; piping sump.
  • 3. Alarm relays can trigger alarm/ security devices.
  • 4. Two built-in inputs provide for solid- state or switch input from external devices. Two built-in output relays provide for outputs to overfill alarms and external audible and visual warning devices.



CAS-2700-02 Veeder TLS 300, 350, 450 Modbus (RTU and TCP) and BACnet and HTML Gateway

    The Veeder Serial Driver allows the Gateway to poll Veeder TLS Panel’s for status, real time and configuration data. Thus the driver can be used to read Tank Inventory, System Status, Tank Alarms, Sensor Alarms and more.

    The Veeder Gateway serves data from a TLS panel as Modbus, BACnet or Web data. The gateway supports all these options simultaneously. Use the data you want and ignore the other.
    The Gateway connects to the TLS Panel, reads data and stores it internally. When a remote system requests data, this data is served in a form that is appropriate to the protocol. In the event that the connection to the TLS Panel is lost, or data cannot be read, the gateway can signal this to the remote data client.

    The gateway requires minimal configuration and can be considered a plug and play component of a system, in that it is ready to operate out of the box with the default configuration.
    The driver is a serial driver using a RS232 serial port to connect between the Gateway and the TLS Panel. The Panel must have a suitable RS232 card installed.



We have module solutions which allow integration directly into Bacnet products as well as the stand alone solutions shown bottom right.


Range of Conversion Solutions

Depending on project requirements select from units with varying resources. and multi port devices. OEM and embedded solutions too.

FS20 Series 1x RS232/485 1x Ethernet 1x Lonworks
FS25 Series 2x RS232/485 1x Ethernet
FS30 Series 2x RS232 and 2x RS485 2x Ethernet 1x Lonworks FieldBus Support:eg Profibus, DeviceNet etcHot Standby Support
FS40 Series 10x RS232 and 2x RS485 2x Ethernet 1x Lonworks FieldBus Support: eg DH+, MB+, Profibus,
DeviceNet etcHot Standby Support
SlotServer 1x RS232/485 1x Ethernet 1x Lonworks For Rockwell ControlLogix 5600

Lonworks and Fieldbus are options not proviced on base models.


Block Diagram

Using a gateway you can integrate non-bacnet devices into your system such as fire alarm panels, lighting systems, PLCs etc.

FS30 series shown for purposes of illustration. Capability depends on hardware, firmware and configuration.


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