Copyright 2010 Baker Hughes Company.
English–TERPS Instruction Manual | 13
6. Programming Guide
The commands have been defined for direct mode operation (address
0). In the addressed mode
an address field must be added to the start of the command and reply.
6.1 Command Summary
The following functions can be performed using the serial link:
i.
Commands are processed on receipt of a <CR> or a 20
second time out. Waiting
20
seconds after entering a valid command has the same effect as a <CR>.
ii. The backspace character deletes typing errors.
iii. The G and R commands cause a text reply.
iv. The *A command causes units to be printed after the pressure reading.
v. All <LF> characters are removed from the incoming string before processing, so
<CR>
=
<CRLF>. The number of line terminating <CR> or <LF> characters in the reply
message is set using the ‘O’ command.
a. PIN functions are disabled in USB versions. The default
PIN value is not applicable for USB versions.
Table
7: Command Summary
Group
Function
Command
Measurement
Request current pressure reading
R
Request new pressure reading
G
Read raw data
Z
Information
Identity and set-up information
I
General Set-up
Set automatic transmission interval. Also
used to set if units are output as text (*A).
A
Set device address
N
Pressure measurement speed
Q
Pressure units
U
PIN Set-up
a
a. PIN functions can only be queried in USB versions.
Digital output calibration
C
Set full-scale
H
User message
M
Communication settings
O
Change PIN
P
Set offset
S
Command Terminators
<CR>
<CRLF>
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