FS-8700-61 – ADC Heatless Communication

FieldServer Driver – Serial


ADC Heatless Communication


The Serial ADC Heatless Communication driver allows the Communications FieldServer to transfer data to and from devices over either RS-232 or RS-485 using ADC Heatless Communication protocol.  The FieldServer can emulate either a Server or Client.

The Server and Client drivers function according to the following specification:

ADC Heatless Communication TECH-NOTE, Doc no. #1251814, Rev. C.

The Client driver implements the following functionality:

  • Polls for Clocks and Counters data.
  • Polls for Configuration data.
  • Polls for Inputs data.
  • Polls for Status data.
  • Polls for Tests data.


The Server driver implements the following functionality:

  • Provides Clocks and Counters data.
  • Provides Configuration data.
  • Provides Inputs data.
  • Provides Status data.
  • Provides Tests data.


The drivers work on a byte for byte protocol. All data poll commands and responses to poll commands are one byte each.

The Server driver implements a response buffer according to the ADC specification. If a response is more than one byte long, the Client polls for the rest of the bytes with special buffer request poll commands.  Each poll is still one byte long and produces a one byte reply from the Server driver.


Fieldserver Mode Nodes Comments


Formal Driver Type


Client or Server


Compatibility Matrix

FieldServer Model Compatible with this driver
FS-x2010 Yes
FS-x2011 Yes
FS-x30 No
FS-x40 Yes


Connection Information

Connection type: RS-232, RS-485 (2-wire, Half Duplex)
Baud Rates: 300; 1200; 2400 (Vendor limitation)
Data Bits: 8
Stop Bits: 1
Parity: None
Multidrop Capability No


Connection configurations

Configure the ADC controller according to manufacturer’s instructions. The serial port on the ADC controller is labeled P1 and is located on the base-board of the controller.




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