B&B Electronics ZP9D-115RM-LR Especificaciones descargar pdf (Pagina 29)

Manual Documentation Number: ZP9D-115RM-LR-0812 29

B&B Electronics Mfg Co Inc – 707 Dayton Rd - PO Box 1040 - Ottawa IL 61350 - Ph 815-433-5100 - Fax 815-433-5104 – www.bb-elec.com

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AT (Guard Time After)

Command

<Command Mode Options> AT

Command is used to set/read

the time-of-silence that follows

the command sequence

character (CC Command) of the

AT Command Mode Sequence

(BT + CC + AT). By default, 1

second must elapse before and

after the command sequence

character.

The times-of-silence surrounding the command sequence character are used to

prevent inadvertent entrance into AT Command Mode. Refer to the „AT Command

Mode‟ section for more information regarding the AT Command Mode Sequence.

BD (Interface Data Rate)

Command

<Serial Interfacing> The BD

command is used to set and

read the serial interface data

rate (baud rate) used between

the RF module and host. This

parameter determines the rate

at which serial data is sent to

the module from the host.

Modified interface data rates do

not take effect until the CN

(Exit AT Command Mode)

command is issued and the

system returns the 'OK'

response.

When parameters 0-8 are sent

to the module, the respective

interface data rates are used

(as shown in the table on the

right).

The RF data rate is not affected

by the BD parameter. If the

interface data rate is set higher

than the RF data rate, a flow

control configuration may

need to be implemented.

The range between standard and non-standard baud rates (0x09 - 0x38) is invalid.

AT Command: ATAT

Binary Command: 0x05 (5 decimal)

Parameter Range: 2 - (ATST-3), up to 0x7FFC

[x 100 milliseconds]

Default Parameter Value: 0x0A (10 decimal)

Number of bytes returned: 2

Related Commands: BT (Guard Time Before),

CC (Command Sequence Character)

AT Command: ATBD

Binary Command: 0x15 (21 decimal)

Parameter Ranges: 0 - 8 (standard rates)_ 0x39 -

0x1C9C38 (non-standard rates)

Parameter

Configuration (bps)

1200

2400

4800

9600

19200

38400

57600

115200

230400

Default Parameter Value: 3

Non-standard baud rates supported as of

firmware v2.x20

Number of bytes returned: 4

1 2 ... 24 25 26 27 28 29 30 31 32 33 34 ... 53 54

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B&B Electronics ZP9D-115RM-LR Especificaciones Pagina 29

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