Baud Rate - HELIX GRANVILLE-PHILLIPS Convectron ATM Instruction Manual

Chapter 4

Baud rate

44
The example set baud rate (SB) command sequence sets the baud rate to
2400 baud:
Example SB command from host:
Response from module:
Allowable SB values are 1200, 2400, 4800, 9600, 19200 (default), or
38400 baud.
The response time from the module depends on the baud rate and the task
that the host commands the module to perform.
• Table 4-5 on page 44 lists baud rates and corresponding response times.
• Table 4-6 on page 44 lists the additional time required for the module to
respond to each command type.
Use the following equation to calculate the total response time for each type
of task listed in Table 4-6.
Response time
The module driver automatically shuts OFF 80 µsec after returning its
response to the host.
Table 4-5 Baud rates and module response times
Baud rate
1200 baud
2400 baud
4800 baud
9600 baud
19200 baud (default)
38400 baud
Table 4-6 Response time per command type
Command type
Reset to programmed values
Read
Program relay
Set
Perform calibration
Report firmware version
Reset parameters to factory defaults
Convectron
#01SB2400 ↵
*01 PROGM OK ↵
= Time + Time
Baud rate
Module response time (msec)
22 msec
13 msec
7.5 msec
5.1 msec
3.9 msec
3.3 msec
Module response time (msec)
No response time
0 msec
17 msec
17 msec
17 msec
17 msec
105 msec
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ATM Vacuum Gauge Module Instruction Manual
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