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www.ets-lindgren.com Operating Protocols 33
Appendix B: Operating Protocols
The information in this section is subject to change, and is included
for reference only.
The following information assumes that the HI-4413P Fiber Optic Modem or
HI-4413USB Fiber Optic to USB Converter was purchased and is communicating
directly with the probe.
Communication Protocol
Data Type: RS-232 Serial
Data Mode: Asynchronous
Word Length: 7 bit
Parity: Odd
Stop Bits: 1
Data Rate: 9600 baud
Information Transfer Protocol
The probe responds to commands from another device; it transmits no data
without first receiving instructions to do so.
Probe Command Structure Probe Response Structure
A command to a probe consists of:

A command letter

Parameters (if required)

<CR> (a carriage return)
When the probe completes the
command, it responds with a string
consisting of:

A start character (":")

The command letter

Data (if required)

<CR> (a carriage return)