ExpertDAQ EX-9016 User manual

1
1. Introduction
The common features of the EX-9016 modules is as follows:
1. 3000 VDC isolatied analog input.
2. 24-bits sigma-delta ADC to provide excellent accuracy.
3. 16-bit DAC supply excitation voltage for strain gauge.
4. Software calibration.
5. EX9016D is the EX9016 with 7-segment LED Display.

2
1.1 Specifications
Analog Input
Input Channels
2
Analog Input Type
mV, V, mA
Sampling Rate
10 Samples/Second
Bandwidth
5.25Hz
Accuracy
±0.05%
Zero Drift
0.5µV/℃
Span Drift
25ppm/℃
CMR@50/60Hz
150dB
NMR@50/60Hz
100dB
Input Impedance
20M Ohms
Isolation
3000VDC
Excitation Voltage Output
Output Channel
1
Output Range
0 to +10V
Max Output Load
40mA
Accuracy
±0.05% of FSR
Drift
±50ppm/℃
Output Impedance
12Ohms
Isolation
3000VDC
Digital Output
Output channels
4
Output Type
Open Collector to 30V
Output Load
Sink 30mA max
Power Dissipation
300mW
Digital Input
Input Channel
1
Digital Level 0
+1V Max
Digital Level 1
+3.5~+30V Max
Event Counter
Max Input Frequency
50Hz
Min Pulse Width
1mS
Environment
Power Requirement
+10 to +30 VDC
Power Consumption
2.4 W
Operating Temperature
-25°C to +75°C
Storage Temperature
-30°C to +75°C
Notes: Warm-UP for 30 minutes is recommended!

3
Led
Display
EEPROM
Single
Controller
RS485
Interface
Power
Supply
+5V
DI0/EV
Exc+
EX9016D
Data+
Data-
+Vs
GND
Iin0+
Photo-Isolation
ADC
Iin1-
Vin1+
DO1/HI
DO3
Vin1-
Vin0-
MUX
Photo-Isolation
DAC
buffer
DO0/LO
DO2
Iin0-
Vin0+
Iin1+
Exc-
1.2 Wire connection
1.2.1 Block Diagrams

4
1.2.2 Wiring diagram for the EX-9016
Bridge Sensor/Load Cell/Strain Gauge Wire Connection
Analog Input Wire Connection: Analog Output Wire Connection:
Digital Input Wire Connection:Digital Output Wire Connection:
EXC-
EXC+
Vin-
Vin+
EXC+
EXC-
V
Vin-
Vin+
mV/V
DI0/EV
GND
DI0/EV
GND
TTL.GND
DOx
GND

5
1.3 Default Settings
Default settings for the EX-9016 module are as follows:
. Module Address: 01
. Analog Input Type: Type 05, -2.5 to +2.5V
. Baud Rate: 9600 bps
. Checksum disabled
. Engineering unit format
. Filter set at 60Hz rejection

6
1.4 INIT* Mode Operation
Each EX9000 module has a build-in EEPROM to store configuration
information such as address, type, baudrate and other information.
Sometimes, user may forget the configuration of the module. Therefore,
the EX9000 have a special mode named "INIT* mode" to help user to
resolve the problem. The "INIT* mode" is setting as Address=00,
Budrate=9600bps, no Checksum .
Originally, the INIT* mode is accessed by connecting the INIT*
terminal to the GND terminal. New EX9000 modules have the INIT*
switch located on the rear side of the module to allow easier access to
the INIT* mode. For these modules, INIT* mode is accessed by sliding
the INIT* switch to the Init position as shown below.
To enable INIT* mode, please following these steps:
Step1. Power off the module
Step2. Connect the INIT* pin with the GND pin.
(or sliding the INIT* switch to the Init* ON position)
Step3. Power on
Step4. Send command $002 (cr) in 9600bps to read the
Configuration stored in the module's EEPROM.
There are commands that require the module to be in INIT* mode.
They are:
1. %AANNTTCCFF when changing the Baud Rate and checksum
settings. See Section 2.1 for details.

7
1.5 Module Status for DIO, AIO
Power On Reset or Module Watchdog Reset will let all
output goto Power On Value. And the module may accept the host's
command to change the output value.
Host Watchdog Timeout will let all output goto Safe Value.
The module's status(read by command~AA0) will be 04, and the output
command will be ignored.
1.6 Dual Watchdog Operation for DIO, AIO
Dual Watchdog=Module Watchdog + Host Watchdog
The Module Watchdog is a hardware reset circuit to monitor the
module's operating status. While working in harsh or noisy
environment, the module may be down by the external signal. The
circuit may let the module to work continues and never halt.
The Host Watchdog is a software function to monitor the host's
operating status. Its purpose is to prevent the network from
communication problem or host halt. When the timeout interval expired,
the module will turn all outputs to predefined Safe Value. This can
prevent the controlled target from unexpected situation.
The EX9000 module with Dual Watchdog may let the control
system more reliable and stable.
1.7 Reset Status
The Reset Status is set while the module power on or reset by module
watchdog and is cleared while the command read Reset Status ($AA5)
applied. This is useful for user to check the module's working status.
When the Reset Status is set means the module is reset and the output
may be changed to the PowerOn Value. When the Reset Status is clear
means the module is not rested and the output is not changed.

8
1.8 Calibration(Warning: Pls don't calibrate before you
really understand.)
Analog Input Calibration sequence:
Type code
00
01
02
03
04
05
06
Zero Input
0mV
0mV
0mV
0mV
0V
0V
0mA
Span Input
+15mV
+50mV
+100mV
+500mV
+1V
+2.5V
+20mA
1. Apply zero calibration voltage.
2. Warm up the module for at least 30 minutes.
3. Set the type code to the type you wish to calibrate.
4. Enable calibration. -> Ref Sec.2.16
5. Perform zero calibration command. -> Ref Sec.2.5
6. Apply span calibration voltage.
7. Perform span calibration command. -> Ref Sec.2.4
8. Repeat steps 4 to 7 three times.
Excitation Voltage Calibration sequence:
1 Connect voltmeter to module’s excitation output pin.
2 Warm-Up for 30 minutes.
3 Output 0V. -> Ref Sec.2.18
4 Trim the output until the value in voltmeter is closest to 0V.
-> Ref Sec.2.20
5 Perform Excitation Voltage Zero Calibration. -> Ref Sec.2.21
6 Output 10V. -> Ref Sec.2.18
7 Trim the output until the value in voltmeter is closest to 10V.
-> Ref Sec.2.20
8 Perform Excitation Voltage Span Calibration. -> Ref Sec.2.22

9
1.9 Configuration Tables
Baud Rate Setting (CC)
Code
03
04
05
06
07
08
09
0A
Baud rate
1200
2400
4800
9600
19200
38400
57600
115200
Analog Input Type Setting (TT)
Code
Range
Format
+F.S.
Zero
-F.S.
00
-15~+15mV
Engineer unit
+15.000
+00.000
-15.000
% of F.S.R.
+100.00
+000.00
-100.00
2’s complement
7FFF
0000
8000
01
-50~+50mV
Engineer unit
+50.000
+00.000
-50.000
% of F.S.R.
+100.00
+000.00
-100.00
2’s complement
7FFF
0000
8000
02
-100~+100mV
Engineer unit
+100.00
+000.00
-100.00
% of F.S.R.
+100.00
+000.00
-100.00
2’s complement
7FFF
0000
8000
03
-500~+500mV
Engineer unit
+500.00
+000.00
-500.00
% of F.S.R.
+100.00
+000.00
-100.00
2’s complement
7FFF
0000
8000
04
-1~+1V
Engineer unit
+1.0000
+0.0000
-1.0000
% of F.S.R.
+100.00
+000.00
-100.00
2’s complement
7FFF
0000
8000
05
-2.5~+2.5V
Engineer unit
+2.5000
+0.0000
-2.5000
% of F.S.R.
+100.00
+000.00
-100.00
2’s complement
7FFF
0000
8000
06
-20~+20mA
Engineer unit
+20.000
+00.000
-20.000
% of F.S.R.
+100.00
+000.00
-100.00
2’s complement
7FFF
0000
8000
Data Format Setting (FF)
7
6
5
4
3
2
1
0
FS
CS
reserved
DF
Key
Description
DF
Data format
00: Engineering unit
01: % of FSR (full scale range)
10: 2’s complement hexadecimal
CS
Checksum setting
0: Disabled
1: Enabled
FS
Filter setting
0: 60Hz rejection
1: 50Hz rejection
Note: The reserved bits should be zero.

10
2 Command
Command Format : (Leading)(Address)(Command)[CHK](cr)
Response Format : (Leading)(Address)(Data)[CHK](cr)
[CHK] 2-character checksum
(cr) end-of-command character, character return(0x0D)
General Command Sets
Command
Response
Description
Section
%AANNTTCCFF
!AA
Set Module Configuration
Sec.2.1
#AA
>(Data)
Read Analog Input
Sec.2.2
$AA0
!AA
Perform Span Calibration
Sec.2.3
$AA1
!AA
Perform Zero Calibration
Sec.2.4
$AA2
!AANNTTCCFF
Read Configuration
Sec.2.5
$AA3
!AAN
Read Channel Select
Sec.2.6
$AA3N
!AA
Set Channel Select
Sec.2.7
$AA8
!AAV
Read LED Configuration
Sec.2.8
$AA8V
!AA
Set LED Configuration
Sec.2.9
$AA9(Data)
!AA
Set LED Data
Sec.2.10
$AAF
!AA(Data)
Read Firmware Version
Sec.2.11
$AAM
!AA(Data)
Read Module Name
Sec.2.12
~AAO(Data)
!AA
Set Module Name
Sec.2.13
~AAEV
!AA
Enable/Disable Calibration
Sec.2.14
Excitation Voltage Command Sets
Command
Response
Description
Section
$AA6
!AA(Data)
Get Excitation Voltage Output
Value
Sec.2.15
$AA7(Data)
!AA
Excitation Voltage Output
Sec.2.16
$AAS
!AA
Start-Up Voltage Output
Configuration
Sec.2.17
$AAEVV
!AA
Excitation Voltage Trim
Calibration
Sec.2.18
$AAA
!AA
Excitation Voltage Zero
Calibration
Sec.2.19
$AAB
!AA
Excitation Voltage Span
Calibration
Sec.2.20

11
Digital Input/Output, Alarm and Event Counter Command Sets
Command
Response
Description
Section
@AADI
!AASOOII
Read Digital I/O and Alarm Status
Sec.2.21
@AADO(Data)
!AA
Set Digital Output
Sec.2.22
@AAEAT
!AA
Enable Alarm
Sec.2.23
@AAHI(Data)
!AA
Set High Alarm
Sec.2.24
@AALO(Data)
!AA
Set Low alarm
Sec.2.25
@AADA
!AA
Disable Alarm
Sec.2.26
@AACA
!AA
Clear Latch Alarm
Sec.2.27
@AARH
!AA(Data)
Read High Alarm
Sec.2.28
@AARL
!AA(Data)
Read Low Alarm
Sec.2.29
@AARE
!AA(Data)
Read Event Counter
Sec.2.30
@AACE
!AA
Clear Event Counter
Sec.2.31
Host Watchdog Related Command Sets
Command
Response
Description
Section
~**
No response
Host OK
Sec.2.32
~AA0
!AASS
Read Module Status
Sec.2.33
~AA1
!AA
Reset Module Status
Sec.2.34
~AA2
!AATT
Read Host Watchdog Timeout
Interval
Sec.2.35
~AA3ETT
!AA
Set Host Watchdog Timeout
Interval
Sec.2.36
~AA4
!AAPPSS
Read PowerOn Value and Safe
Value
Sec.2.37
~AA5PPSS
!AA
Set PowerOn Value and Safe
Value
Sec.2.38

12
2.1 %AANNTTCCFF
Description:Set Module Configuration.
Syntax:%AANNTTCCFF[CHK](cr)
%
a delimiter character
AA
address of setting/response module(00 to FF)
NN
new address for setting/response module(00 to FF)
TT
represents the type code. Type code determines the
input range.
If TT=FF the type of all channels keep no change.
CC
new baudrate for setting module.
FF
new data format for setting module.
IF the configuration with new baudrate or new checksum setting,
before using this command, the rear slide switch must be in the
ON(INIT*) position. The new setting is saved in the EEPROM and will
be effective after the next power-on reset.
Response: Valid Command: !AA
Invalid Command: ?AA
Example:
Command: %0203050602
Receive: !02
Set module address 02 to 03.
Input type code=05 (-2.5~+2.5V) for all channels
Baudrate=06 (9600)
Dataformat=02 (2’s complement hexadecimal)

13
2.2 #AA
Description:Read Analog Input
Syntax:#AA[CHK](cr)
# delimiter character
AA address of reading/response module(00 to FF)
Response: Valid Command: >(Data)
(Data) analog input value
Example :
Command: #04 Receive:>+10.234
Read address 04 for getting data is +10.234.

14
2.3 $AA0
Description: Perform Span Calibration
Syntax:$AA0[CHK](cr)
$ delimiter character
AA address of setting/response module (00 to FF)
0 command for performing span calibration
Response: Valid Command: !AA
Invalid Command: ?AA
Example :
Command : $010 Receive : !01
Perform address 01 span calibration, return success.
Command : $020 Receive : ?02
Perform address 02 span calibration, return not enable
calibration before perform calibration command.
Warning: Pls don't calibrate before you really understand.

15
2.4 $AA1
Description:Perform Zero Calibration
Syntax: $AA1[CHK](cr)
$ delimiter character
AA address of setting/response module (00 to FF)
1 command for performing zero calibration
Response: Valid Command: !AA
Invalid Command: ?AA
Example:
Command: $011 Receive: !01
Perform address 01 zero calibration, return success.
Command: $021 Receive: ?02
Perform address 02 zero calibration, return not enable
calibration before perform calibration command.
Warning: Pls don't calibrate before you really understand.

16
2.5 $AA2
Description: Read configuration.
Syntax:$AA2[CHK](cr)
$ delimiter character
AA address of reading/response module(00 to FF)
2 command for read configuration
Response: Valid Command: !AATTCCFF
Invalid Command: ?AA
TT
CC
FF
Example:
Command: $012 Receive: !01200600
Read the configuration of module 01.
Note: check configuration Tables
type code of the module
baud Rate code of the module
data format, checksum settings and filter
settings of the module

17
2.6 $AA3
Description: Read Channel Select.
Syntax:$AA3[CHK](cr)
$ delimiter character
AA address of reading/response module(00 to FF)
3 command for read channel select
Response: Valid Command: !AAN
Invalid Command: ?AA
N
Example:
Command: $013 Receive: !010
Read address 01 channel select, return channel 0 is select.
Channel selected. The analog input command is
applied to the channel N

18
2.7 $AA3N
Description: Set Channel Select.
Syntax:$AA3N[CHK](cr)
$ delimiter character
AA address of reading/response module(00 to FF)
3 command for read channel select
N channel N is select
Response: Valid Command: !AAN
Invalid Command: ?AA
Example:
Command: $0131 Receive: !01
Set address 01 channel select 1, return success.

19
2.8 $AA8 (for EX9016D only)
Description: Read LED Configuration
Syntax:$AA8[CHK](cr)
$ delimiter character
AA address of reading/response module(00 to FF)
8 command for read LED configuration
Response: Valid Command: !AAV
Invalid Command: ?AA
VLED configuration
1=module control, 2=host control
Example:
Command: $ 018 Receive: !011
Read address 01 LED configuration, return module control.
Command: $ 018 Receive: !010
Read address 01 LED configuration, return host control.

20
2.9 $AA8V (for EX9016D only)
Description: Set LED Configuration
Syntax:$AA8V[CHK](cr)
$ delimiter character
AA address of reading/response module(00 to FF)
8 command for read LED configuration
V 1=Set LED to module, 2=Set LED to host
Response: Valid Command: !AA
Invalid Command: ?AA
Example:
Command: $ 0182 Receive: !011
Set address 01 LED to host control, return success.
Command: $ 0181 Receive: !010
Set address 01 LED to module control, return success.