Airlink Raven GPRS - Manual (Page 96)

AT Commands
88 Cingular GPRS Raven User Guide Version 2.01
MVMSK=hh hh=hex value
(00 [default] no
mask, all 8 bits
0F only the low
order 4 bits)
Modbus Variant ID Mask
Byte hex mask to use when extracting the ID. Specify
which bits in the ID field to use. This parameter is used
when the when the Mode Default (MD) is set to hex 63.
Cannot be configured in Wireless ACE.
MVOFF=n n = 0 - 255 Modbus (variable mode) Offset.
Indicates the offset in the data of where the Modbus ID
starts.
Cannot be configured in Wireless ACE.
MVOPT=n
n=0
n=1
Modbus Variant Option
Sets various behavioral options when dealing with a
Modbus-variant protocol. This parameter is used when
the when the Mode Default (MD) is set to hex 63
No special action (Default)
Skip leading zeroes in Modbus packets.
Cannot be configured in Wireless ACE.
MVTYP=n
n=0
n=1
n=2
Modbus Variant Type
The data-type of the RTU ID in a modbus-variant proto-
col. This parameter is used to define the data-type of the
RTU ID in Modbus-like protocol data packets. This
parameter is used when MD is set to 63.
Binary (Default)
ASCII Hex
ASCII Decimal
Cannot be configured in Wireless ACE.
TABLE 16. Modbus Settings
Command Parameters Details