Casio E-Con EA-200 Use and care manual

–1–
Technical Reference
EA-200
http://world.casio.com/edu/
E
Contents
Sampling ................................................................................................ 2
Analog Sampling .................................................................................... 3
Memory .................................................................................................. 3
Pulse Sampling ...................................................................................... 4
Command Tables ................................................................................... 5
Command 1: Channel Settings .............................................................. 9
Command 3: Sampling and Trigger Settings ........................................ 12
Command 4: Conversion Equation Settings ........................................ 14
Command 5: Data Range Settings ...................................................... 15
Command 7: Status Check .................................................................. 16
Command 10: Power Supply Setting ................................................... 17
RS-232C Communication .................................................................... 17

– 2 –
Sampling
1. Channel
Analog
Pulse
Digital I/O
Mic
Analog Output
CH1–3
SONIC
DIG I/O
Mic
CH3 speaker
3
1
1
1
1
Voltage, resistance, pulse period
Channel Name
Number of Channels Details
Pulse interval, pulse period
8-bit input/output, 1-bit clock
Recording (Ⳳ1.5V)
CH3: output function
12-bit D/A (Ⳳ3V)
Voltage
Resistance
0–5V
Ⳳ10V
1.2mV
4.9mV
Pulse period 0–600sec
Range Resolution Sampling Interval
—
12-bit A/D
Notes
Refer to “Pulse Sampling”
on page 4.
Pulse interval 1–100msec 8msec–16000sec
20 sec–16000sec
µ
0.868 sec
µ
FastMode Normal Extended*
1
Period
Frequency
Fast
Output
Normal
Output
CH1 or
Mic
CH1–3,
SONIC, DIG I
CH1–3,
SONIC, DIG I
CH1 or
SONIC
Speaker
or CH3
CH3 or
DIG O
嘷嘷 嘷 ⳯嘷嘷
Communication
Tr igger Source
Clock Source
嘷嘷 嘷 嘷嘷嘷Key Press
嘷嘷 嘷 嘷⳯⳯Tr igger
嘷嘷 嘷 ⳯⳯⳯Countdown
µ
20–
100 sec
0.1msec⳯Number
of Channels to
300sec
300–16000sec —
10msec –
300sec
Timer
⳯嘷 ————
Communication
⳯嘷 ————Key Press
⳯嘷*
2
—嘷⳯⳯Tr igger
⳯嘷 嘷 ⳯
——
Communication
while Sampling
Enabled CH
20–
54 sec
µ
—
1–100Ω
2. Types of Sampling
3. Sampling Methods
Configuring the Calculator for Sampling
*1Warm up is not supported during long-period sampling.
*2SONIC sampling triggered by CH1, CH2, or CH3 is not supported.
<Stand-along Sampling Method>
Auto Setup
When the Setup key is pressed...
Enters the sampling setup ready state.
Supports bundled sensors (temperature, voltage, photo) only.
<Setup Details>
Auto-ID is read from CH1, CH2, CH3, and SONIC.
(Mic and Digital I/O are not supported.)
Channel Settings When no Auto-ID is available...
CH1, CH2, CH3: Operation=10 (Voltage 1 to 5V)
SONIC: Not used
Sampling Period Furthest Interval among the used Auto-ID is used.
Data Send Priority Non real-time type
<Data Send Priority>
Channel Priority: Sampling time, SONIC, CH1, CH2, CH3
* Different from normal. Refer to “Memory” on page 3.

– 3 –
Analog Sampling
Channel Names: CH1, CH2, CH3
1. CH1, CH2, CH3 Connector Specifications
Pin Number
1 Vin ⫾10V (CH3: Vin⫾5V and ⫾3Vout)
2GND
3Vres
4Auto-ID
5+5.3V DC
6Vin-low 0–5V
2. Types of Sampling
1Voltage
Tw o sampling ranges are shown below.
•⫾10V 1pin (CH3: ⫾5V)
•0to 5V Pin 6
2Resistance
Tw o sampling ranges are shown below.
•pin6: 1–100kΩ
•pin4: Auto-ID
3Pulse period
Tw o sampling ranges are shown below
•⫾10V 1pin (CH3: ⫾5V)
•0to 5V Pin 6
For details, refer to “Pulse Sampling” on page 4.
Pin 5 +5.3V Power Supply
Supplied from 100 msec before Clock Source.
Variable using power supply command (Command 10).
5pin
Power supplied during ready state.
Sampling Interval
100msec
Memory
1. Sampling Time Data
<Absolute Time and Relative Time>
2. Number of Sample Data
Number of Sample Data: 120000
• Number of Sampling Channels and Number of Sample Data
Absolute Time
Relative Time
T2 T3 T4
T2
T3
T4
( T1=0 )
Time Axis
Trigger Source
Sample Value 1
Clock Source 1
Sample Value 2
( T1=0 )
Clock Source 2
Sample Value 3
Clock Source 3
Sample Value 4
* The number of samples is 2^n when FFT Samples (n) is used.
Number of
Sampling
Channels
Clock Source
Maximum
Number of
Sample Data
1
Clock Source =
Timer
120000
2 60000
3 40000
4 30000
5 24000
0
Clock Source =
External Trigger
60000
1 40000
2 30000
3 24000
4 20000
5 17140
The maximum number of
sample data when a timer
is the sampling trigger is
calculated using the
following formula:
120000⫼[Number of
Channels Used]
The maximum number of
sample data when an
external trigger is the
clock source is calculated
using the following
formula:
120000⫼([Number of
Channels Used] + 1)

– 4 –
3. Data Send Priority
1. Real-time Type
(Selected using Command 12)
Channel Priority: CH1, CH2, CH3, SONIC, DIG IN, sampling time
•Variable (1 data)
Sends the data of the channel with highest priority among {CH1, CH2, CH3,
SONIC, DIG IN, sampling time}.
The data with the second highest and subsequent priorities is not sent.
• List (N line data)
{CH1 data n, CH2 data n, CH3 data n, SONIC data n, DIG IN data n, sampling
time n}
(n: number of samples at the point that request is made)
2. Non Real-time Type
(Selected using Command 12)
Channel Priority: Sampling time, mic, CH1, CH2, CH3, SONIC, DIG IN
•Variable (1 data)
First sends the oldest data on the highest priority channel.
Next sends the next oldest data upon request.
Next channel data is sent after all the data of the current channel is sent.
• When List type data is requested part way through
The channel’s data is sent as a list.
•When Matrix type data is requested part way through
Sent as Matrix type.
• List (N line data)
Sends the data of the highest priority channel.
{CH* data1, CH* data2, CH* data3, … CH* data n}
Next sends the next highest priority channel’s data upon request.
*Sample data that is not configured is omitted.
*After everything is sent, returns to the beginning when a data request comes
in.
Pulse Sampling
Channel Name: SONIC
(Pulse period sampling is also supported on CH1.)
1. SONIC Connector Specifications
Pin Number Pulse Period Pulse Interval
1 Vin ⫾10V Sampling end pulse
2Not used Sampling output pulse
3Auto-ID Auto-ID
4+5.3V DC +5.3V DC
5GND GND
6Vin-low 0–5V Not used
2. Types of Sampling
1Pulse Period Sampling
Channel CH1, SONIC
Supported Sampling Input Voltage ⫾10V (1pin), 0–5V (6pin)
Tr igger Level (V) Pin 1: ⫾10V 12-bit D/A
(Resolution: 4.9mV)
Pin 6: 0 to 5V 12-bit D/A
(Resolution: 1.2mV)
Range 0 to 600 sec (4 Sampling Intervals: A to D)
Resolution 0.868
µ sec
Input Impedance 1MΩ
Rising/Falling switchable (4 methods: A to D)
1 or 6pin
A
B
C
D
When using the EA-2
•Use the bundled AC adaptor.
• Minimum sampling interval is 0.02 sec.
(When the subject is 3 meters or less away.)

– 5 –
Channel Operation Post-Processing FFT Samples
0Clear all channels ––– ––– –––
*1 Channel 1 0Clear the selected channel. *0None
2Channel 2 *1 Auto-ID 1d/dt –––
3Channel 3 2 Voltage (±10V) 2 d/dt, d2/dt2
(for Voltage probe)
4Resistance 10 FFT-Real 1 to 13 Samples used
5Period 11 FFT-Real, Imaginary (*6) 2n(2–8192)
6Frequency
7 Temperature (Celsius)
8 Temperature (Fahrenheit)
9Light
10 Voltage (0–5V)
11 Absolute Time
4SONIC Channel 0Clear the SONIC channel. *0 None
*1 Meters 1d/dt
2Meters 2d/dt, d2/dt2
3Feet –––
5Period
6Frequency
11 Absolute Time
5DIG IN Port 0Clear the digital input channel. ––– –––
*1 Active
6DIG OUT Port Data String Output Loops Data string
0Clear the digital input channel. 0 to 255 Output data element value –––
1 to 32 Number of output data elements
(*1)
10 Microphone 0Clear the Microphone. *0 None
*1 Active 10 FFT-Real 1 to 13 Samples used
11 FFT-Real, Imaginary (*6) 2n(2–8192)
11 Analog Out CH3 1pin ±3Vout Data String Output Loops Data Output Selection Data string
0Clear the analog out or speaker. *0 Data string ±1.5 Output data element value
12 Speaker 1 to 65535 Number of output data elements
(*1) 1Channel 1
2Channel 2
3Channel 3
10 Microphone
Pin No Trigger Threshold Trigger Edge (Operation = 5, 6)
*2 1pin Vin (±10V) ±10 Set input voltage threshold value *0 Rising edge to rising edge
–10 to +10. 1Falling edge to falling edge
2Rising edge to falling edge
3Falling edge to rising edge
10 6pin Vin-low (0–5V) 0 to 5 Trigger Edge (Operation = 11)
*0 Rising edge
1Falling edge
2Rising and falling edge
• Channel = 1, 2, 3 or 4, Operation = 5, 6, 11
{ 1, Channel, Operation, Pin No, Trigger Threshold, Trigger Edge }
*: parameter value marked with asterisk are initial defaults. { 1, Channel, Operation, Post-Processing, FFT Samples }
Command Tables
•Record Time for Operations 5, 6, and 11
must be 2, 1, and 1 respectively.
•Trigger Source for Channels 1, 2, 3, and 4
must be 2, 3, 4, and 12 respectively.
•Clock Source must be 10.
Command 1 - Channel Setup

– 6 –
Command 3 - Sample and Trigger Setup
Sampling Interval Number of Samples Record Time
0.00002 Number of seconds 1 to Number of samples 0 Off
to 16000 120000 *1 Absolute time recording
(*0.1) (*100) 2 Relative time recording
Trigger Souce Trigger Threshold Trigger Edge Clock Source
*1 [START/STOP] key ––– ––– *0Timer (Sample interval)
2 or 5 CH1 Sampled Values 0 Falling edge 10 Same as Trigger Source
3 or 6 CH2 • Corrected values when Command 4 *1 Rising edge (1 to 5)
4 or 7 CH3 2 Rising and falling edge
8 DIG IN Clock –––
9 DIG IN 8-bit data 0–255 (D7–D0) –––
(*1)
10 Microphone Sampled Values ±1.5V 0 Fallig edge
*1 Rising edge
2 Rising and falling edge
11 SONIC Distance 0 Falling edge
• Unit depends on Command 1. 1 Rising edge
(*0.05) *2 Difference with previous value is below
3 Difference with previous value is above –––
20 Count down Count Number (sec) –––
1 to 10 (*10)
–1 Command 8 ––– –––
{ 3, Sampling Interval, Number of Samples, Record Time, Trigger Source, Trigger Threshold, Trigger Edge, Clock Source }

– 7 –
Command 4 - Conversion Equation Setup
{ 4, Equation Number, Equation Type, Number Format, Constants }
Equation Number Equation Type Number Format Constants
* 0 Clear All equations. * 0 Clear equation selected by the equation number parameter. ––– –––
1 Equation 1 (Channel 1) 1 Polynomial K0+K1X+K2X2+...+KnXn *
1
* 0 Standard K0( , K1, ..., K9) *
3,4
2 Equation 2 (Channel 2) 2 Mixed polynomial K–mX–m+...+K–1X–1+K0+K1X+......+KnXn
*2 10 Integer part (Decimal part cut off.) K–4( , ..., K–1, K0, K1, ..., K5) *
3,4
3 Equation 3 (Channel 3) 3 Power K0X(K1)+K2
4 Modified power K0K1(X)+K2
5 Logarithmic K0+K1In(X)
6 Modified logarithmic K0+K1In(1/X)
7 Exponential K0 e(K1X)+K2K0( , K1, K2, K3) *
3,4
8 Modified exponential K0 e(K1/X)+K2
9 Geometric K0 X(K1X)+K2
10 Modified geometric K0 X(K1/X)+K2
11 Reciprocal logarithmic [K0+K1In(K2X)]–1+K3
12 Steinhart-Hart model [K0+K1 (In 1000X)+K2(In 1000X)3]–1+ K3
4 Equation 4
(SONIC channel) * 0 Clear equation 4. Unit Temperature
1 Temperature used by distance conversion expression * 0 °C (Celsius) Temperature
1 °F (Fahrenheit) ( *20)
2 °C (Celsius)
3K(kelvin)
4 °R (Rankin)
Channel Select Data Select Data Begin Data End Step K FFT Samples
* 0 Current send channel * 0 Raw data 1 to 120000 1 to 120000 Data Range Steps (*255) 1 to 13: Samples used
1 Channel 1 1 d/dt (*1) * 0: Last sample –1: Data range number / K (*6) 2n(2–8192)
2 Channel 2 2 d2/dt2(*1)
3 Channel 3 10 FFT-Real
4 SONIC channel 11 FFT-Imaginary
5 DIG IN channel
6 Recorded time data
10 Microphone
Command 5 - Data Range Setup
*1 Polynomial: Input constants in sequence, from n = 0 to 9. *2 Mixed polynomial: Input constants in sequence from m = 4 to 1, and n = 0 to 5.
*3 Input of zero for constants can be skipped if all remaining constants are not used. *4 Input 0 for constants that are not used.
•When the conversion result of the “conversion equation” selected by Command 4 causes an overflow, the EA-200 sends a result of zero (0) to the calculator.
{ 5, Channel Select, Data Select, Data Begin, Data End, Step, K (, FFT Samples) }

– 8 –
Command 6 - System Setup
Command 12 - Data Send Sequence
{ 10, Warmup Time (sec) }
{ 6, Command, Auto Power Off Time }
{ 12, Send Sequence }
Command 8 - Sampling Start
{ 8 }
Command 10 - Sensor Warmup
Command APO Time (sec)
0 or 2 Abort Sampling
( *0)
3Turns sound off –––
4Turns sound on
10 APO * 0 1800
(Auto Power Off) 1 10
2 360
Command 11 - Buzzer and LED Operation Commands
{ 11, Output Select, Length, Period }
• An error occurs when fraction data is sent.
•Send commands to the EA-200 in accordance with the command table contents.
•An error occurs when a parameter that does not exist in the command table is sent.
•The EA-200 uses six digits for internal calculations.
Warmup Time (sec)
0.1 to 360 Warmup time (sec)
( *0.1)
0 Auto
–1 None
–2 Normal warmup
Output Select Length (sec) Period (sec)
* 0 Buzzer Operating Time (sec) Period (sec)
2 Ready LED
3 Sampling LED –––
4 Error LED
5 Batt LED
Send Sequence
* 0 Non-real Time Format
1 Real Time Format

– 9 –
Command 1: Channel Settings
{ 1, Channel, Operation, Post-Processing }
1. Channel
0Clear all Command 1 data.
1Specify CH1.
2Specify CH2.
3Specify CH3.
4Specify SONIC channel.
5Specify Digital In channel.
6Specify Digital Out channel.
10 Specify mic.
11 Specify Analog Out.
12 Specify speaker.
2. Operation
Analog CH1, CH2, CH3
(Channel = 1, 2, 3)
0Clear Command 1 data of specified channel.
1Auto-ID
Perform sampling using automatically recognized sensor.
Perform 0 to 5V sampling when recognition is not possible.
2Voltage sampling ⫾10V
4Resistance sampling 1–100kΩ
5Period sec
6Frequency Hz
7Temperature –29 to 130°C
8Temperature –4 to 266°F
9Light quantity 100 to 999
10 Voltage sampling 0 to 5V
11 Time sec (Relative time sampling from sampling start)
SONIC
(Channel = 4)
0Clear Command 1 data of SONIC channel.
1Auto-ID
Perform sampling in automatically detected unit.
2Meter
3Feet
5Period sec
6Frequency Hz
11 Time sec (Relative time sampling from sampling start)
Digital I/O
Pin: Clock: 1
GND: 1
Signal: 8 (8-bit TTL 0 to 5V)
Digital In
(Channel = 5)
0Clear Dig I channel information.
1Active
Read information of digital connector Pin 8.
0 to 255
Digital Out
(Channel = 6)
0Clear Dig O channel information.
1 to 32 Number of loops
Number of outputs of list values

– 10 –
Output Example
When the list is: 85(1010101), 34( 100010), 187(10111011), 204(11001100)
<Output Trigger>
Following receipt of Command 3, output starts as soon as a Trigger Source is
generated.
The following can be specified as a Trigger Source.
0: None, 1: [Start] key, 10: Countdown, Command 8
Output is interrupted when the Start/Stop key is pressed.
<Analog Out Port>
Output is from Pin 1 of CH3.
Vout ⫾3V (Iout maximum 100mA)
Analog, SONIC Sampling
3. Post-Processing
(Operation 1–4, 7–10)
0None (no calculation)
1d/dt
2d
2/dt2
10 FFT (Fast Fourier Transformation)-Real
11 FFT-Real, Imaginary
Calculation Methods
<<First derivative>>
(dx/dt)n= (Xn+1 – Xn–1) / (2t)
(dx/dt)1= (X2– X1) / t
(dx/dt)m= (Xm– Xm–1) / t
xn:nth data
t: Sampling period
m:Maximum value of n
<<Second derivative>>
(d2x/dt2)n= (Xn+1 – 2
`
Xn+ Xn–1) / t2
(d2x/dt2)1= (X3– 2
`
X2+ X1) / t2
(d2x/dt2)m= (Xm– 2
`
Xm+1 + Xm–2) / t2
*First and second derivatives are supported only when timer is the sampling
trigger.
Mic
(Channel = 10)
0Clear channel information.
1Active
Analog Out, speaker
(Channel = 11, 12)
0Clear channel information.
1–65535 Number of loops
Select Data
Select the data to be output by the sampling period.
0List data
1CH1 sampled values
2CH2 sampled values
3CH3 sampled values
10 Mic sampled values
Step
(Select Data 1, 2, 3, 10)
Number of steps for output sampled data
1, 2, 4, 8, 16
D8
D7
D6
D5
D4
D3
D2
D1
85 34 187 204
Clock