Adcom A723, A720 manual Code Description Parameters Returns

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CHAPTER 4

Performing Advanced Functions

•The Command Code specifies the operation that will be applied to the selected channel. They are described in the table below:

Table 3. Command Code Definitions for the Analog Command
Code	Description	Parameters	Returns
	RSM – Read Sampling Method. This command reads the current		The current sampling methods and the
0000		None.	result (OK or ERROR). See also the table
	programmed sampling method for all analog input channels.
			that follows.
0001	SSMMI – Set Sampling Method to Minimum. The specified ana-	The channel number.	Result (OK or ERROR).
	log channel will be instructed to store the lowest sampled value.
0010	SSMMA – Set Sampling Method to Maximum. The specified ana-	The channel number.	Result (OK or ERROR).
	log channel will be instructed to store the highest sampled value.
0011	SSMS – Set Sampling Method to Sum. The specified analog chan-	The channel number.	Result (OK or ERROR).
	nel will be instructed to store the sum of all sampled values.
	SSMAA – Set Sampling Method to Arithmetic Average. The speci-
0100	fied analog channel will be instructed to store the arithmetic	The channel number.	Result (OK or ERROR).
	average of all sampled values.
	SSMCA – Set Sampling Method to Circular Average. The specified
0101	analog channel will be instructed to store the circular average of	The channel number.	Result (OK or ERROR).
	all sampled values.
0110	SSMF – Set Sampling Method to First. Only the first sampled	The channel number.	Result (OK or ERROR).
	value will be stored in each slot.
0111	SSML – Set Sampling Method to Last. Only the last sampled	The channel number.	Result (OK or ERROR).
	value will be stored in each slot.
	RNS – Read Notification Statusa. If no notification was pending,		Returns the time when the threshold
1000	this command should return an error. If one was pending, the	The channel number.	was reached (in standard time format)
	notification is cleared.		and the result (OK or ERROR).
	RPNNER – Read the Pending Notifications and the Notification		Two 16-bit integers (first the PN and
	Enable Register. This command returns the 16-bit Pending Notifi-
1001		None.	then the NE register) and the result (OK
	cations and the Notification Enable Registers; the Port Number
			or ERROR).
	has no significance for this command.
1010	DAN – Disable Any Notification.	The channel number.	Result (OK or ERROR).
			One 8-bit char (Notification Type), two
			16-bit integers (first the lower limit and
1011	RNTTL – Read Notification Type and Thresholds/Limits.	The channel number.	then the higher limit) and the result (OK
			or ERROR). If only a threshold was set,

then the second 16-bit integer is irrele- vant.