Chapter 3
42
Micro-Ion
®
Module Instruction Manual - 356007-GP
SB – Set the Baud Rate
The example set baud rate (SB) command sequence sets the baud rate to
2400 baud:
Example SB command from host:
#01SB2400
↵
Response from module:
*01 PROGM OK
↵
Allowable SB values are 1200, 2400, 4800, 9600, 19200 (default), or
38400 baud.
SP – Set the Parity
The example set parity (SP) command sequence sets parity at seven data
bits, odd parity:
Example SP command from host:
#01SPO
↵
Response from module:
*01 PROGM OK
↵
• An SPO command sets parity at seven data bits, odd parity.
• An SPE command sets parity at seven data bits, even parity.
• An SPN command sets parity at eight data bits, no parity. This is the
default parity.
3.15
Data Timing and
Response
The module communicates using half-duplex mode. The host issues a
command then waits for a response from the module.
Figure 3-13 illustrates the request and response data timing sequence,
including:
• The request sent by the host / response sent by the module.
• Minimum and maximum time duration from the end of the receipt of the
request to the start of the response (T
D
).
• Time required for the module to process and respond with the data (T
R
).
• Time for the module to switch between transmit and receive modes (D).
Table 3-9 lists data timing and response delay limits. The time required for
the module to process and send the response depends on the baud rate and
command type, as listed in Table 3-10 and Table 3-11.
The minimum response time of the module to a request is 1.2 msec. The
host must switch from transmit to receive mode in 12.0 msec or less to
ensure proper receipt of response data packets from the module. The host
must wait a minimum of 200 µsec after receiving the response before
sending a new request command.
Summary of Contents for 356 Micro-Ion Plus Series
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