Part 1 – Commands for All Universal IP Devices
Chapter 1 – General AT Commands
#LEGACYMODE – Legacy Mode Enable/Disable
About Legacy Mode:
Note: This command is for all devices except the SocketEthernet IP (MT100SEM-IP)
Legacy mode allows for smoother transition to TCP/IP based connectivity from standard analog
interface connections.
When #LEGACYMODE=1, the stack will be in pseudo legacy mode where the commands &S,
&D, &C, A, D, S0, E, V operate independently of the stack. The commands will be saved to a
different NVRAM location and will not affect the IP stack once legacy mode has been exited.
Once in legacy mode, the user can configure the #TCP values and issue an ATD command to
make a connection to the remote host. If necessary, the user can also issue
ATDxxxxxxxxxxxxppppp where x is the decimal address and ppppp is the remote port. The stack
will perform the physical connection and present the user with the proper messages:
NO CARRIER
NO ANSWER
CONNECT
OK
ERROR
Description:
If legacy mode is enabled, the AT interface tries to behave like a legacy analog modem. ATD and
ATA will function on the TCP stack instead of the physical connection. Responses will behave like
that of an analog modem.
Syntax: Set Value: AT#LEGACYMODE=1
View Values: AT#LEGACYMODE?
Values:
Default:
0 Disable legacy mode
1 Enable legacy mode
0
#PERSISTENTSOCKET - Persistent Socket
Definition:
If enabled and the physical connection is present, a socket will be created automatically.
Note: This command is for all devices except the SocketEthernet IP (MT100SEM-IP) .
Syntax: Set Value: AT#PERSISTENTSOCKET=<Persistentsocket value>,<Result Codes>
View Values : AT#PERSISTENTSOCKET? or AT#VALL
Values :
0 Persistent socket is disabled
1 The TCP originate is started (#OTCP=1)
2 The TCP listener is started (#LTCPSTART=1)
3 The UDP originate is started (#OUDP=1)
4 The UDP listener is started (#LUDPSTART=1)
Result Codes: 0 All result codes will be suppressed during socket connection/disconnection
1 All result codes will be displayed during socket connection/disconnection
Defaults:
Example:
0,1
AT#PERSISTENTSOCKET=1,0
Universal IP AT Commands Reference Guide (Document S000457G)
14
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