Table of Contents
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44
CHAPTER 4
Performing Advanced Functions
Table 3. Command Code Definitions for the Analog Command
Code
RSM – Read Sampling Method. This command reads the current
0000
programmed sampling method for all analog input channels.
SSMMI – Set Sampling Method to Minimum. The specified ana-
0001
log channel will be instructed to store the lowest sampled value.
SSMMA – Set Sampling Method to Maximum. The specified ana-
0010
log channel will be instructed to store the highest sampled value.
SSMS – Set Sampling Method to Sum. The specified analog chan-
0011
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
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
all sampled values.
SSMF – Set Sampling Method to First. Only the first sampled
0110
value will be stored in each slot.
SSML – Set Sampling Method to Last. Only the last sampled
0111
value will be stored in each slot.
RNS – Read Notification Status
1000
this command should return an error. If one was pending, the
notification is cleared.
RPNNER – Read the Pending Notifications and the Notification
Enable Register. This command returns the 16-bit Pending Notifi-
1001
cations and the Notification Enable Registers; the Port Number
has no significance for this command.
1010
DAN – Disable Any Notification.
1011
RNTTL – Read Notification Type and Thresholds/Limits.
•
The Command Code specifies the operation that will be
applied to the selected channel. They are described in the
table below:
Description
a
. If no notification was pending,
Parameters
The current sampling methods and the
None.
result (OK or ERROR). See also the table
that follows.
The channel number.
Result (OK or ERROR).
The channel number.
Result (OK or ERROR).
The channel number.
Result (OK or ERROR).
The channel number.
Result (OK or ERROR).
The channel number.
Result (OK or ERROR).
The channel number.
Result (OK or ERROR).
The channel number.
Result (OK or ERROR).
Returns the time when the threshold
The channel number.
was reached (in standard time format)
and the result (OK or ERROR).
Two 16-bit integers (first the PN and
None.
then the NE register) and the result (OK
or ERROR).
The channel number.
Result (OK or ERROR).
One 8-bit char (Notification Type), two
16-bit integers (first the lower limit and
then the higher limit) and the result (OK
The channel number.
or ERROR). If only a threshold was set,
then the second 16-bit integer is irrele-
vant.
Returns
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