Controller Operation
9.12 Serial Interface Parameters 9
9-13
The baud rate of the bath serial communications may be programmed to 300,
600, 1200, or 2400 baud. Use “UP” or “DOWN” to change the baud rate value.
2400 b New baud rate
Press “SET” to set the baud rate to the new value or “EXIT” to abort the
operation and skip to the next parameter in the menu.
9.12.2 Sample Period
The sample period is the next parameter in the serial interface parameter menu.
The sample period is the time period in seconds between temperature
measurements transmitted from the serial interface. If the sample rate is set to 5,
the bath will transmit the current measurement over the serial interface
approximately every five seconds. The automatic sampling is disabled with a
sample period of 0. The sample period is indicated by,
SAmPLE Serial sample period parameter
Press “SET” to choose to set the sample period. The current sample period value
will be displayed.
SA= 1 Current sample period (seconds)
Adjust the value with “UP” or “DOWN” and then use “SET” to set the sample rate
to the displayed value.
SA= 60 New sample period
9.12.3 Duplex Mode
The next parameter is the duplex mode. The duplex mode may be set to full
duplex or half duplex. With full duplex any commands received by the bath via
the serial interface are immediately echoed or transmitted back to the device of
origin. With half duplex the commands are executed but not echoed. The duplex
mode parameter is indicated by,
dUPL Serial duplex mode parameter
Press “SET” to access the mode setting.
dUP=FULL Current duplex mode setting
The mode may be changed using “UP” or “DOWN” and pressing “SET”.
dUP=HALF New duplex mode setting
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