9 Controller Operation
9.10.1Baud Rate
The baud rate is the first parameter in the menu. The baud rate setting deter- mines the serial communications transmission rate.
The baud rate parameter is indicated by,
bAUd | Flashes “ | ” and then displays the stetting |
2400 b | Current BAUD rate | |
The baud rate of the serial communications may be programmed to 300, 600, 1200, 2400, 4800, or 9600 baud. Use “UP” or “DOWN” to change the baud rate value.
4800 b | New BAUD rate |
Press “SET” to set the baud rate to the new value or “EXIT” to abort the opera- tion and skip to the next parameter in the menu.
9.10.2Sample 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 measure- ments transmitted from the serial interface. If the sample rate is set to 5, the in- strument transmits 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,
SPer | Flashes “SPEr” and then displays the setting |
SP= 1 | Current sample period (seconds) |
Adjust the value with “UP” or “DOWN” and then use “SET” to store the sam- ple rate to the displayed value. “EXIT” does not store the new value.
SP= 60 | New sample period |
9.10.3Duplex Mode
The next parameter is the duplex mode. The duplex mode may be set to full du- plex or half duplex. With full duplex any commands received by the calibrator 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 du- plex mode parameter is indicated by,
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