Appendices
11
Introduction
Subject of this
Chapter
What's in this
Chapter?
This Chapter introduces AT commands associated with the TSX MDM 10 modem.
This chapter contains the following topics:
Topic
AT commands
A/ - Command re-execution
AT = x - Write to the selected S register
AT? - Read the selected S register
A - Answer
Cn - Checking for carrier
Dn - Dialing
En - Local command echo
Hn - Disconnection (hang up)
In - Identification
Ln - Loudspeaker volume
Mn - Loudspeaker command
Nn - Activation of automatic mode.
On- Return to on-line data mode
P - Default adjustment of pulse dialing
Qn - Activation / deactivation of result codes
Sn - S register read / write
T - Default adjustment of tone dialing
Vn - Form of the result codes
Wn - Error correction messages control
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Appendices
Topic
Xn - Extended result codes
Yn - Disconnection after prolonged inactivity
Zn - Software reset of modem and restoration of profile
&Cn - RLSD Option (detection of DCD carrier)
&Dn - DTR Option (Data Terminal Ready)
&Fn - Restoration of the factory configuration (profile)
&Gn - Selection of guard tone
&Kn – Flow control
&Pn - Selection of pulse dialing close/open report
&Qn - Synchronous/asynchronous mode
&Rn - RTS/CTS option
&Sn - DSR Monitoring (Data Station Ready)
&V - Display of current configuration and stored profiles
&Wn – Storage of the current configuration
&Yn - Designation of a default profile on reset
&Zn – Storage of telephone numbers
%Cn - Activation / deactivation of data compression
%En - Activation/deactivation of line quality monitoring or automatic resynchronization or fallback/increase of transfer rate
%L - Level of line signal
%Q - Quality of line signal
\Kn - BREAK control
\Nn - Operating mode
Values of the registers of the TSX MDM 10 card in a PLC
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