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Cingular GPRS Raven User Guide Version 2.01 87
AT Commands
Modbus, commonly used with telemetry devices, allows a connection via serial
port to the modem. See “Modbus/BSAP Configuration” on page
35.
TABLE 16. Modbus Settings
Command Parameters Details
IPL=n
n=0
n=1
IP List Dial
This allows access the Modbus IP list using the first two
digits of the dial string. Example: ATDT1234567 would
go to ID "12" on the Modbus list and use the associated
IP as the destination.
Disabled
Enabled
Cannot be configured in Wireless ACE.
MDhh hh (hex byte) =
00 - normal
01 - SLIP mode
02 - PPP mode
03 - UDP mode
04 - TCP mode
Set or query the modem's default power-up mode
When the Raven is power-cycled, it may enter the mode
specified by this command after 5 seconds. On startup,
typing ATMD0 within 5 seconds changes the mode to
normal (AT command) mode.
See also S53 to set the port for UDP or TCP.
MLISTid=d.d.d.d id=ID
d.d.d.d=IP or
name
Enters an ID and IP address into the Modbus List. ID is
a decimal value (1 to 100).
Note: In Wireless ACE, this command (and MLISTX) is
the Addr List menu option.
MLISTXhexid=d.d.d.d hexid=ID
d.d.d.d=IP or
name
Enters an ID and IP address into the Modbus List. ID is a
hexadecimal value (0 to 64). Note: This value is entered
via Wireless ACE as 0xHex.
MVLEN=n n= 1 or 2 Modbus Variant ID Length
Length of the RTU ID in a modbus-variant protocol, in
bytes. This parameter is used to define the length of the
RTU ID in Modbus-like protocol data packets. This
parameter is used when the when the MD is set to hex
63.
Cannot be configured in Wireless ACE.