XStream-PKG-R™ RS-232/485 RF Modem – Product Manual v5.x00
4 .4 . Com m a n d D e scr ipt ion s
Com m ands in t his sect ion ar e list ed alphabet ically . Com m and cat egor ies ar e designat ed bet w een
t he “ < > ” sy m bols t hat follow each com m and t it le. XSt r eam Modem s expect num er ical v alues in
hex adecim al and t hose v alues ar e designat ed by a “ 0x ” prefix .
AM ( Au t o- se t M Y) Com m a nd
< Net work ing and Secur it y> AM Com m and is
used to aut om at ically set t he MY ( Source
Addr ess) par am et er fr om t he fact or y - set m odem
ser ial num ber . The address is for m ed w it h bit s 29, 28 and 13- 0 of t he ser ial num ber ( in that
order ) .
AT ( Gua r d Tim e Aft e r ) Com m a nd
< Com m and Mode Opt ions> AT Com m and is used
t o set t he t im e- of- silence t hat follow s t he
com m and sequence char act er ( CC Com m and) . By
default , AT Com m and Mode will act iv at e aft er one
second of silence.
Refer t o t he AT Com m ands sect ion ( p19) to v iew
t he default AT Com m and Mode sequence.
BD ( I nt e r fa ce D a t a Ra t e ) Com m a n d
< Ser ial I nt er facing> BD Com m and allows t he
user to adj ust t he UART int erface dat a r at e and
t hus m odify t he r at e at w hich ser ial dat a is sent
t o t he RF m odem . The new baud r at e does not
t ak e effect unt il t he CN com m and is issued. The
RF dat a r at e is unaffect ed by the BD par am eter .
Most applicat ions w ill r equire one of t he seven
st andar d baud r at es; how ev er, non- st andar d
baud r at es ar e also suppor t ed.
Not e: I f t he ser ial dat a r at e is set to ex ceed t he
fix ed RF dat a r at e of t he m odem ,
flow cont rol
m ay need t o be im plem ent ed in t he Flow Cont rol
sect ion ( p13) of t his m anual.
N on - st a nda r d I n t e r fa ce D a t a Ra t e s:
When
par am et er v alues out side t he r ange of st andar d
baud r at es ar e sent , t he closest int er face dat a
r at e r epr esent ed by t he num ber is st or ed in t he
BD r egist er . For ex am ple, a r at e of 19200 bps can be set by sending t he follow ing com m and line
" ATBD4B00" . NOTE: When using Digi’s XCTU Soft w ar e, non- st andar d int er face dat a r at es can
only be set and r ead using t he XCTU “ Term inal” t ab. Non- st andar d r at es are not accessible
t hr ough t he “ Modem Configurat ion” t ab.
When t he BD com m and is sent w it h a non- st andar d int er face dat a r at e, t he UART w ill adj ust t o
accom m odat e t he r equest ed int er face r at e. I n m ost cases, t he clock r esolut ion w ill cause t he
st or ed BD par am et er to v ary fr om t he par am et er t hat w as sent ( r efer t o t he t able below ) .
Reading t he BD com m and ( send "ATBD" com m and w it hout an associat ed par am et er v alue) w ill
r et ur n t he v alue t hat w as act ually st or ed t o t he BD r egist er .
Table 4.2.
Parameter Sent vs. Parameter Stored
BD Parameter Sent (HEX)
Interface Data Rate (bps)
BD Parameter Stored (HEX)
0
1200
0
4
19,200
4
7
115,200
7
12C
300
12B
1C200
115,200
1B207
AT Command: ATAM
Binary Command: 0x3A (58 decimal)
Minimum firmware version required: 4.30
AT Command: ATAT
Binary Command: 0x05 (5 decimal)
Parameter Range: 0x02 – 0xFFFF
(x 100 milliseconds)
Number of bytes returned: 2
Default Parameter Value: 0x0A (10 decimal)
Related Commands: BT (Guard Time Before),
CC (Command Sequence Character)
AT Command: ATBD
Binary Command: 0x15 (21 decimal)
Parameter Range (Standard baud rates): 0 – 6
(Non-standard baud rates): 0x7D – 0xFFFF
Parameter
BAUD (bps)
Configuration
0
1200
1
2400
2
4800
3
9600
4
19200
5
38400
6
57600
Number of bytes returned: 2
Default Parameter Value: Set to equal to
modem’s factory-set RF data rate.
Minimum firmware version required: 4.2B
(Custom baud rates not previously supported)
© 2014 Digi International Inc.
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