11
Chapter 3
ASCII Protocol
Command Format
The serial interface commands in this manual are designated by the
bold font (ex. DmFTPnnnn). The commands are case-sensitive.
Upper case letters are used throughout the command set except as
designated.
The TSI Series 5XXX use ASCII characters as the input command
set. Each command sent to the flow meter must be terminated by a
carriage return (CR = 0x0d). Line feeds (LF = 0x0a) are ignored.
Select commands allow you to choose either ASCII or binary format
for the returned data. Binary data transfers allow for faster operation.
The TSI Series 5XXX flow meters send an acknowledge sequence to
confirm that the command was received. For ASCII commands, the
acknowledge sequence is “OK” <CR><LF>. For binary commands, a
single byte, 0x00, is returned.
The ASCII command set for the Series 4000
/
4100 flow meters
(4000-4100-RS-Command-Set P/N 1980340) is backwards
compatible with the TSI Series 5XXX flow meters. This manual lists
which commands also work with the Series 4000
/
4100 flow meters
and also include additional commands specifically for the additional
functions of the 5XXX series.
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