RTC
®
5 PC Interface Board
Rev. 1.9 e
10 Commands And Functions
385
Ctrl Command read_analog_in
Function reads the analog input values (ANALOG IN0 and ANALOG IN1) from the
(RTC
®
5 PC interface board’s) optional ADC add-on board or from the RTC
®
5-Express
board’s “SPI / I2C” connector and returns them as 12-bit digital values.
Call
AnalogValue = read_analog_in()
Result an unsigned 32-bit value:
Bits#0…11 ANALOG IN0 input value as 12-bit digital value
Bit#12 = 0 (channel number)
Bits#13…14 = 0
Bit#15 Old bit for ANALOG IN0
Bits#16…27 ANALOG IN1 input value as 12-bit digital value
Bit#28 = 1 (channel number)
Bits#29…30 = 0
Bit#31 Old bit for ANALOG IN1
Comments • This command can only be used together with an RTC
®
5-Express board or with an
RTC
®
5 PC interface board with installed ADC add-on board (see page 54 and
page 595), i.e. not together with an RTC
®
5 PC/104-Plus board or an RTC
®
5 PCIe/104
board.
• The old bits (bits #15 and #31) are set to 1 after reading via read_analog_in. They will
be automatically reset, when new data are available at the corresponding analog input.
RTC
®
4
RTC
®
5 new command
Version info Available beginning with version DLL 527, OUT 529, RBF 519
Ctrl Command read_encoder
Function returns the counts of the two RTC
®
5 encoder counters that were stored via
store_encoder.
Call
read_encoder( &Encoder0_0, &Encoder1_0, &Encoder0_1, &Encoder1_1 )
Returned para-
meter values
Encoder0_0,
Encoder1_0,
Encoder0_1,
Encoder1_1
counts as pointers to signed 32-bit values.
For parameter “Encodern_m”,
• n is the number of the encoder counter (Encoder0, Encoder1)
• m is the number of the buffer position (parameter
Pos
of
store_encoder)
Comments • Also see "Processing-on-the-fly (Optional)", page 177 and "Synchronization via Encoder
Signals", page 215.
• If incremental encoders are used to detect the motion of the parts to be processed,
encoder counter Encoder0 will be triggered by the signals at encoder input ENCODER X
and encoder counter Encoder1 by the signals at encoder input ENCODER Y. In contrast,
if an encoder simulation has been started via simulate_encoder, both encoder
counters will be triggered by an internal periodic 1 MHz clock signal.
• For buffer positions in which counts were not previously stored via store_encoder, the
value 0 will be returned (initialized value).
RTC
®
4
RTC
®
5 new command
Version info Available beginning with version DLL 520, OUT 519
References store_encoder, get_encoder, set_fly_x, set_fly_y, set_fly_rot, wait_for_encoder
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