Measurement CB-COM-7021 User Manual

Download

CD-7021/CB7021P

CB-7022, CB-7024

User’s Manual

CB-7021, CB-7022, CB-7024 User’s Manual

Table of Contents

1. Introduction .....................................................6

1.1 More Information.......................................6

1.2 Pin Assignment ..........................................7

1.3 Specifications ..........................................10

1.4 Block Diagram ........................................12

1.5 Jumper Setting .........................................14

1.6 Wire Connection......................................14

1.7 Quick Start ..............................................15

1.8 Default Setting ........................................15

1.9 Calibration ...............................................16

1.10 Configuration Tables .............................22

2. Command.......................................................26

2.1 %AANNTTCCFF ...................................29

2.2 $AA2 .......................................................30

2.3 $AA5 .......................................................31

2.4 $AAF .......................................................32

2.5 $AAM......................................................33

2.6 ~AAO(Data) ............................................34

2.7 #AA(Data) ...............................................35

2.8 $AA0 .......................................................37

2.9 $AA1 .......................................................38

2.10 $AA3VV ...............................................39

CB-7021, CB-7022, CB-7024 User’s Manual

2.11 $AA4 .....................................................40

2.12 $AA6 .....................................................41

2.13 $AA7 .....................................................42

2.14 $AA8 .....................................................43

2.15 #AAN(Data) ..........................................45

2.16 $AA0N ..................................................47

2.17 $AA1N ..................................................48

2.18 $AA3NVV.............................................49

2.19 $AA4N ..................................................50

2.20 $AA6N ..................................................51

2.21.1 $AA7N ...............................................52

2.21.2 $AA7N ...............................................53

2.22 $AA8N ..................................................54

2.23 $AA9N ..................................................56

2.24 $AA9NTS..............................................57

2.25 ~** .........................................................58

2.26 ~AA0 .....................................................59

2.27 ~AA1 .....................................................60

2.28 ~AA2 .....................................................61

2.29 ~AA3EVV.............................................62

2.30 ~AA4 .....................................................64

2.31 ~AA4N ..................................................65

2.32 ~AA5 .....................................................66

2.33 ~AA5N ..................................................67

CB-7021, CB-7022, CB-7024 User’s Manual

3. Application Note............................................68

3.1 INIT* pin Operation.................................68

3.2 Module Status .......................................... 68

3.3 Dual Watchdog Operation ........................69

3.4 Reset Status..............................................69

3.5 Analog Output..........................................69

3.6 Slew Rate Control ....................................70

3.7 Current Readback.....................................71

HM CB COM 7021-24.p65

CB-7021, CB-7022, CB-7024 User’s Manual

1. Introduction

CB-7000 is a family of network data acquisition and

control modules. They provide analog-to-digital, digital-to-analog,

digital input/output, timer/counter and other functions. These

modules can be remote controlled by a set of commands. The basic

features of CB-7021, CB-7021P, CB-7022 and CB-7024 are given

as following:

l 3000 VDC isolated analog output.

l Programmable PowerOn Value of analog output.

l Programmable slew rate.

l Software calibration.

The CB-7021 is an analog output module with 12-bit reso-

lution and current readback function. The CB-7021P is similar with

CB-7021 but with 16-bit resolution. The CB-7022 is the dual channel

version of CB-7021. The CB-7024 is a 4-channel analog output

module, and supports bipolar voltage outputs.

1.1 More Information

Refer to “CB-7000 Bus Converter User Manual” chap-

ter 1 for more information as following:

1.1 CB-7000 Overview

1.2 CB-7000 Related Documentation

1.3 CB-7000 Command Features

1.4 CB-7000 System Network Configuration

1.5 CB-7000 Dimension

CB-7021, CB-7022, CB-7024 User’s Manual

1.2 Pin Assignment

CB-7021, CB-7022, CB-7024 User’s Manual

1.3 Specifications

CB-7021

Analog Output

Output Channel: 1

Output Type: mA, V

Accuracy: ±0.1% of FSR

Resolution: ±0.02% of FSR

Readback Accuracy: ±1% of

FSR

Zero Drift:

Voltage output: ±30µV/°C

Current output: ±0.2µA/°C

CB-7021P

Analog Output

Output Channel: 1

Output Type: mA, V

Accuracy: ±0.02% of FSR

Resolution: ±0.002% of FSR

Readback Accuracy: ±1% of

FSR

Zero Drift:

Voltage output: ±10µV/°C

Current output: ±0.2µA/°C

Span Temperature Coefficient:

±25ppm/°C

Programmable Output Slope:

0.125 to 1024 mA/Second

0.0625 to 512 V/Second

Voltage Output: @ 10 mA max.

Current Load Resistance:

Internal power: 500 ohms

External 24V: 1050 ohms

Isolation: 3000VDC

Power Supply

Span Temperature Coefficient:

±5ppm/°C

Programmable Output Slope:

0.125 to 1024 mA/Second

0.0625 to 512 V/Second

Voltage Output: @ 10 mA max.

Current Load Resistance:

Internal power: 500 ohms

External 24V: 1050 ohms

Isolation: 3000VDC

Power Supply

Input: +10 to +30VDC

Consumption: 1.8 W.

CB-7021, CB-7022, CB-7024 User’s Manual

Input: +10 to +30VDC

Consumption: 1.8 W.

CB-7022

CB-7024

Analog Output

Output Channel: 2

Output Type: mA, V

Accuracy: ±0.1% of FSR

Resolution: ±0.02% of FSR

Readback Accuracy: ±1% of

FSR

Zero Drift:

Voltage output: ±30µV/°C

Current output: ±0.2µA/°C

Span Temperature Coefficient:

Analog Output

Output Channel: 4

Output Type: mA, V

Accuracy: ±0.1% of FSR

Resolution: ±0.02% of FSR

Zero Drift:

Voltage output: ±30µV/°C

Current output: ±0.2µA/°C

Span Temperature Coefficient:

±20ppm/°C

Programmable Output Slope:

±25ppm/°C

Programmable Output Slope:

0.125 to 1024 mA/Second

0.0625 to 512 V/Second

Voltage Output: @ 10 mA max.

Current Load Resistance:

Internal power: 500 ohms

External 24V: 1050 ohms

Isolation: 3000VDC

Channel-to-channel isolation

Power Supply

0.125 to 2048 mA/Second

0.0625 to 1024 V/Second

Voltage Output: @ 5 mA max.

Current Load Resistance:

External 24V: 1050 ohms

Isolation: 3000VDC

Power Supply

Input: +10 to +30VDC

Consumption: 2.3 W.

Input: +10 to +30VDC

Consumption: 3.0 W.

CB-7021, CB-7022, CB-7024 User’s Manual

1.4 Block Diagram

CB-7021, CB-7022, CB-7024 User’s Manual

1.5 Jumper Setting

Jumper-select the current output power supply of CB-7021/21P:

1. Select internal power of module. The default setting can drive

a load of up to 500 ohms.

2. Select external power of module: can drive larger load. With

24V power, it can drive 1050 ohms.

Jumper select the current output power supply of CB-7022:

1. JP1 for channel 0 setting, and JP2 for channel 1 setting.

2. Select internal power: 500 ohms load max.

3. External power: 1050 ohms with external +24VDC power.

1.6 Wire Connection

CB-7021/21P/22 Voltage Output Wire Connection

CB-7021, CB-7022, CB-7024 User’s Manual

CB-7021/21P/22 Current Output Wire Connection

CB-7024 Voltage Output Wire Connection

CB-7024 Current Output Wire Connection

1.7 Quick Start

Refer to “CB-7000 Bus Converter User Manual” and

“Getting Started” for more detail.

1.8 Default Setting

Default setting for CB-7021, CB-7021P, CB-7022 and CB-7024:

l Address: 01

l Analog Output Type: 0 to +10V

l Baud rate: 9600 bps

l Checksum disable, change immediate, engineer unit format

l CB-7021, CB-7021P, CB-7022 jumper setting: internal power.

CB-7021, CB-7022, CB-7024 User’s Manual

1.9 Calibration

Don’t Perform Calibration Until You Understand Procedure.

CB-7021/21P Current Output Calibration Sequence:

1. Set the jumper 1 to internal power and connect milliammeter

to module’s current output. If a milliammeter in not available,

use Volt Meter with shunt resistor (250 ohms, 0.1%). Calculate

the output current by the Volt Meter value (I = V/250).

2. Warm-Up for 30 minutes.

3. Setting type to 30. (0 to 20 mA) Refer Sec. 2.1.

4. Program output for 4 mA. Refer Sec. 2.7.

5. Check the meter and trim the output until

4 mA match by apply trim command. Refer Sec. 2.10.

6. Preform 4 mA Calibration Command. Refer Sec. 2.8.

7. Program output for 20 mA. Refer Sec. 2.7.

8. Check the meter and trim the output until

20 mA obtained by trim command. Refer Sec. 2.10

9. Perform 20 mA Calibration Command. Refer Sec. 2.9.

CB-7021, CB-7022, CB-7024 User’s Manual

CB-7021/21P Voltage Output Calibration Sequence:

1. Connect voltmeter to module’s voltage output.

2. Warm-Up for 30 minutes.

3. Set type to 32. (0 to 10V) Refer Sec. 2.1.

4. Program output for 10V. Refer Sec. 2.7.

5. Check Refer Sec. 2.13.

CB-7021, CB-7022, CB-7024 User’s Manual

CB-7022 Current Output Calibration Sequence:

1. Set the jumper to internal power and connect milliammeter to

module’s current output channel 0. If a milliammeter is not avail-

able, use a Volt Meter with shunt resistor (250 ohms, 0.1%),

and calculate the mA by the Volt Meter value (I = V/250).

2. Warm-Up for 30 minutes.

3. Set output type to 0. (0 to 20mA) Refer Sec. 2.24.

4. Program output for 4 mA. Refer Sec. 2.15.

5. Check the meter and trim the output for

4 mA match by using trim command. Refer Sec. 2.18.

6. Preform 4 mA Calibration Command. Refer Sec. 2.16.

7. Program output 20 mA. Refer Sec. 2.15.

8. Check the meter and trim the output until

20 mA match by using trim command. Refer Sec. 2.18.

9. Perform 20 mA Calibration Command. Refer Sec. 2.17.

10. Repeat step 1 to 9 for channel 1.

CB-7021, CB-7022, CB-7024 User’s Manual

CB-7022 V oltage Output Calibration Sequence:

1. Connect voltmeter to module’s voltage output.

2. Warm-Up for 30 minutes.

3. Set output type to 2. (0 to 10V) -> Refer Sec. 2.24.

4. Program output 10V. -> Refer Sec. 2.15.

5. Check the meter and trim the output for

10V match by using trim command.-> Refer Sec. 2.18.

6. Perform 10V Calibration Command. -> Refer Sec. 2.21.

7. Repeat step 1 to 6 for channel 1.

CB-7021, CB-7022, CB-7024 User’s Manual

CB-7024 Current Output Calibration Sequence:

1. Connect meter and external power source to module’ s

current output channel 0.

2. Warm-Up for 30 minutes.

3. Set type to 30. (0 to 20 mA) -> Refer Sec. 2.1.

4. Program output for 0 mA. -> Refer Sec. 2.15.

5. Check the meter and trim the output for

0 mA match by using trim command. -> Refer Sec. 2.18.

6. Perform 0 mA Calibration Command. -> Refer Sec. 2.16.

7. Program output for 20 mA. -> Refer Sec. 2.15.

8. Check the meter and trim the output for

20 mA match by using trim command. -> Refer Sec. 2.18.

9. Perform 20 mA Calibration Command. -> Refer Sec. 2.17.

10. Repeat 1 to 9 for channel 1, 2, and 3.

CB-7021, CB-7022, CB-7024 User’s Manual

CB-7024 Current Output Calibration Sequence:

1. Connect meter to module’s voltage output channel 0.

2. Warm-Up for 30 minutes.

3. Setting type to 33. (−10 to 10V) -> Refer Sec. 2.1.

4. Output −10V. -> Refer Sec. 2.15.

5. Check the meter and trim the output for

−10V match by using trim command. -> Refer Sec. 2.18.

6. Perform −10V Calibration Command. -> Refer Sec. 2.16.

7. Program output for 10V. Refer Sec. 2.15.

8. Check the meter and trim the output for

10V match by using trim command.-> Refer

Sec. 2.18.

9. Perform 10V Calibration Command. -> Refer Sec. 2.17.

10. Repeat 1 to 9 for channel 1, 2 and 3.

CB-7021, CB-7022, CB-7024 User’s Manual

1.10 Configuration Tables

Baud rate Setting (CC)

edoC30405060708090A0

etarduaB0021004200840069002910048300675002511

Analog Output Type Setting (TT)

edoCepyT031323334353F3

tuptuO.niMAm0Vm4V0V01-V0V5--

tuptuO.xaMAm02Am02V01+V01+V5+V5+-

etoN42/P12/1207-IroFylno4207-IroF

Data Format Setting (FF)

76543210

01*2*3*

*1: Checksum Bit: 0=Disable, 1=Enable

*2: Slew Rate Control:

for CB-7021/21P and CB-7024, Refer Sec. 3.6 for de-

tails

for CB-7022, set to 0

2207-IroF

ylno

*3: 00 = Engineering Unit Format

01 = Percent of Span Format (For CB-7021/21P/22)

10 = Hexadecimal Format (For CB-7021/21P/22)

CB-7021, CB-7022, CB-7024 User’s Manual

4207-IdnaP12/1207-IrofetaRwelS

dnoceS/VdnoceS/AmdnoceS/VdnoceS/Am

0000etaidemmI00010.80.61

10005260.0521.010010.610.23

0100521.052.001010.230.46

110052.05.011010.460.821

00105.00.100110.8210.652

10100.10.210110.6520.215

01100.20.401110.2150.4201

11100.40.811110.42010.8402

etoNylno4207-Irofsi1111gifnocehT

edoCepyTegnaRtuptuOtamroFataD.xaM.niM

tinUreenignE000.02000.00

03Am02ot0

13Am02ot4

23V01ot0

napSfo%00.001+00.000+

lamicedaxeHFFF0000

tinUreenignE000.02000.40

napSfo%00.001+00.000+

lamicedaxeHFFF0000

tinUreenignE000.01000.00

napSfo%00.001+00.000+

lamicedaxeHFFF0000

P12/1207-IroftamroFataDdnaepyTtuptuOgolanA

CB-7021, CB-7022, CB-7024 User’s Manual

2207-IroftamroFataDdnaepyTtuptuOgolanA

epyTtuptuOegnaRtuptuOtamroFataD.xaM.niM

tinUreenignE000.02000.00

0Am02ot0

1Am02ot4

2V01ot0

napSfo%00.001+00.000+

lamicedaxeHFFF0000

tinUreenignE000.02000.40

napSfo%00.001+00.000+

lamicedaxeHFFF0000

tinUreenignE000.01000.00

napSfo%00.001+00.000+

lamicedaxeHFFF0000

4207-IroftamroFataDdnaepyTtuptuOgolanA

edoCepyTegnaRtuptuOtamroFataD.xaM.niM

03Am02ot0tinUreenignE000.02+000.00+

13Am02ot4tinUreenignE000.02+000.40+

23V01ot0tinUreenignE000.01+000.00+

33V01+ot01-tinUreenignE000.01+000.01-

43V5+ot0tinUreenignE000.50+000.00+

53V5+ot5-tinUreenignE000.50+000.50-

CB-7021, CB-7022, CB-7024 User’s Manual

DA Configuration of CB-7022 Analog Output T ype (T)

0 0 mA to 20 mA current output

1 4 mA to 20 mA current output

2 0V to 10V voltage output

Slew Rate Control (S)

0 Immediate change

1 0.0625V/Second or 0.125 mA/Second

2 0.125V/Second or 0.25 mA/Second

3 0.25V/Second or 0.5 mA/Second

4 0.5V/Second or 1.0 mA/Second

5 1.0V/Second or 2.0 mA/Second

6 2.0V/Second or 4.0 mA/Second

7 4.0V/Second or 8.0 mA/Second

8 8.0V/Second or 16 mA/Second

9 16V/Second or 32 mA/Second

A 32V/Second or 64 mA/Second

B 64V/Second or 128 mA/Second

C 128V/Second or 256 mA/Second

D 256V/Second or 512 mA/Second

E 512V/Second or 1024 mA/Second

CB-7021, CB-7022, CB-7024 User’s Manual

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 returns(0x0D)

Calculate Checksum:

1. Calculate ASCII sum of all characters of command (or

response) string except the character returns(cr).

2. Mask the sum of string with 0ffh. Example:

Command string: $012(cr)

Sum of string = ‘$’+‘0’+‘1’+‘2’ = 24h+30h+31h+32h = B7h The checksum is B7h, and [CHK] = “B7”

Command string with checksum: $012

B7(cr)

Response string: !01300600(cr)

Sum of string: ‘!’+‘0’+‘1’+‘3’+‘0’+‘0’+‘6’+‘0’+‘0’ = 21h+30h+31h+33h+30h+30h+36h+30h+30h = 1ABh The checksum is ABh, and [CHK] = “AB”

Response string with checksum: !01300600AB(cr)

steSdnammoClareneG

dnammoCesnopseRnoitpircseDnoitceS

FFCCTTNNAA%AA!noitarugifnoCeludoMteS 1.2.ceS 2AA$FFCCTTNNAA!noitarugifnoCdaeR 2.2.ceS 5AA$SAA!sutatSteseRdaeR 3.2.ceS

FAA$)ataD(AA!noisreVerawmriFdaeR 4.2.ceS MAA$)ataD(AA!emaNeludoMdaeR 5.2.ceS

)ataD(OAA~AA!emaNeludoMteS 6.2.ceS

CB-7021, CB-7022, CB-7024 User’s Manual

steSdnammoCtuptuOgolanAP12/1207-I

dnammoCesnopseRnoitpircseDnoitceS

)ataD(AA#> eulaVgolanAtuptuO 7.2.ceS 0AA$AA!noitarbilaCAm4 8.2.ceS 1AA$AA!noitarbilaCAm02 9.2.ceS

VV3AA$AA!noitarbilaCmirT 01.2.ceS 4AA$AA!eulaVnOrewoPteS 11.2.ceS 6AA$)ataD(AA!kcabdaeReulaVtsaL 21.2.ceS 7AA$AA!noitarbilaCV01 31.2.ceS 8AA$)ataD(AA!kcabdaeRtnerruC 41.2.ceS

steSdnammoCtuptuOgolanA2207-I

)NlennahcdeicificepsrofdnammocllA(

dnammoCesnopseRnoitpircseDnoitceS

)ataD(NAA#> eulaVgolanAtuptuO 51.2.ceS N0AA$AA!noitarbilaCAm4 61.2.ceS N1AA$AA!noitarbilaCAm02 71.2.ceS

VVN3AA$AA!noitarbilaCmirT 81.2.ceS N4AA$AA!eulaVnOrewoPteS 91.2.ceS N6AA$)ataD(AA!kcabdaeReulaVtsaL 02.2.ceS N7AA$AA!noitarbilaCV01 1.12.2.ceS N8AA$)ataD(AA!kcabdaeRtnerruC 22.2.ceS N9AA$STAA!noitarugifnoCADdaeR 32.2.ceS

STN9AA$AA!noitarugifnoCADteS 42.2.ceS

CB-7021, CB-7022, CB-7024 User’s Manual

steSdnammoCtuptuOgolanA4207-I

)NlennahcdeicificepsrofsdnammocllA(

dnammoCesnopseRnoitpircseDnoitceS

)ataD(NAA#> eulaVgolanAtuptuO 51.2.ceS N0AA$AA!noitarbilaCV01-/Am0 61.2.ceS N1AA$AA!noitarbilaCV01/Am02 71.2.ceS

VVN3AA$AA!noitarbilaCmirT 81.2.ceS N4AA$AA!eulaVnOrewoPteS 91.2.ceS N6AA$)ataD(AA!kcabdaeReulaVtsaL 02.2.ceS N7AA$AA!eulaVnOrewoPdaeR 2.12.2.ceS N8AA$)ataD(AA!kcabdaeReulaVtnerruC 22.2.ceS

steSdnammoCdetaleRgodhctaWtsoH

dnammoCesnopseRnoitpircseD noitceS

**~esnopseRoNKOtsoH 52.2.ceS

0AA~SSAA!sutatSeludoMdaeR 62.2.ceS 1AA~AA!sutatSeludoMteseR 72.2.ceS

godhctaWtsoHdaeR

2AA~VVAA!

eulaVtuoemiT

godhctaWtsoHteS

VVE3AA~AA!

eulaVtuoemiT

4AA~)ataD(AA!eulaVefaSdaeR 03.2.ceS

foeulaVefaSdaeR

N4AA~)ataD(AA!

NlennahC

82.2.ceS

92.2.ceS

13.2.ceS

5AA~AA!eulaVefaSteS 23.2.ceS

lennahCfoeulaVefaSteS

N5AA~AA!

CB-7021, CB-7022, CB-7024 User’s Manual

33.2.ceS

2.1 %AANNTTCCFF

Description: Set module Configuration Syntax: %AANNTTCCFF[CHK](cr)

% Delimiter character AA Address of setting module (00 to FF) NN New address for setting module (00 to FF)

TT New type for setting module (Ref Sec. 1.10) CC New baud rate for setting module (Ref Sec. 1.10) FF New data format for setting module (Ref Sec. 1.10)

When changing the baud rate or checksum, short the

INIT* pin to ground.

Response: Valid Command: !AA[CHK](cr)

Invalid Command: ?AA[CHK](cr)

Syntax error or communication error may get no response.

! Delimiter for valid command ? Delimiter for invalid command. While changing baud rate

or checksum setting without shorting INIT* to ground, the

module will returns an invalid command message.

AA Address of response module (00 to FF)

Example:

Command: %0102300600 Receive: !02

Change address from 01 to 02, returns successful.

Related Command: Sec. 2.2 $AA2 Related Topics: Sec. 1.10 Configuration Tables, Sec. 3.1 INIT* pin Operation

CB-7021, CB-7022, CB-7024 User’s Manual

2.2 $AA2

Description: Read Configuration Syntax: $AA2[CHK](cr)

$ Delimiter character

AA Address of reading module (00 to FF)

2 Command for reading configuration

Response: Valid Command: !AA TTCCFF[CHK](cr)

Invalid Command: ?AA[CHK](cr)

Syntax error or comm. error may get no response.

! Delimiter for valid command

? Delimiter for invalid command

AA Address of response module (00 to FF)

TT Type code of module (reference Sec. 1.10) CC Baud rate code of module (reference Sec. 1.10) FF Data format of module (reference Sec. 1.10)

Example:

Command: $012 Receive: !01300600

Read configuration of module in address 01, which is an CB-

7021 module, returns analog output 0 to 20 mA, baud rate

9600bps, no checksum, engineering unit format and output

change immediate.

Related Command: Sec. 2.1 %AANNTTCCFF Related Topics: Sec. 1.10 Configuration Tables, Sec3.1 INIT* pin Operation

CB-7021, CB-7022, CB-7024 User’s Manual

2.3 $AA5

Description: Read Reset Status Command: $AA5[CHK](cr)

$ Delimiter character

AA Address of reading module (00 to FF)

5 Command for reading reset status

Response: Valid Command: !AAS[CHK](cr)

Invalid Command: ?AA[CHK](cr)

Syntax or communication error may get no

response.

! Delimiter for valid command

? Delimiter for invalid command

AA Address of response module (00 to FF)

S Reset status, 1 = the module is been reset; 0 = the

module is not been reset.

Example:

Command: $015 Receive: !011

Read address 01 reset status, returns first read.

Command: $015 Receive: !010

Read address 01 reset status, returns no reset occurred.

Related Topics: Sec3.4, Reset Status

CB-7021, CB-7022, CB-7024 User’s Manual

2.4 $AAF

Description: Read Firmware Version Syntax: $AAF[CHK](cr)

$ Delimiter character

AA Address of reading module (00 to FF)

F command for reading firmware version

Response: Valid Command: !AA(Data)[CHK](cr)

Invalid Command: ?AA[CHK](cr)

Syntax error or communication error may get no re-

sponse.

! Delimiter for valid command

? Delimiter for invalid command

AA Address of response module (00 to FF)

(Data) firmware version of module

Example:

Command: $01F Receive: !01A2.0

Read address 01 firmware version, returns version A2.0.

Command: $02F Receive: !01B1.1

Read address 02 firmware version, returns version B1.1.

CB-7021, CB-7022, CB-7024 User’s Manual

2.5 $AAM

Description: Read Module Name Syntax: $AAM[CHK](cr)

$ Delimiter character

AA Address of reading module (00 to FF)

M Command for reading module name

Response: Valid Command: !AA(Data)[CHK](cr)

Invalid Command: ?AA[CHK](cr)

Syntax error or communication error may get no re-

sponse.

! Delimiter for valid command

? Delimiter for invalid command

AA Address of response module (00 to FF)

(Data) Name of module

Example:

Command: $01M Receive: !017021

Read address 01 module name, returns name 7021.

Command: $03M Receive: !037021P

Read address 03 module name, returns name 7021P.

Related Command: Sec. 2.6 ~AAO(Data)

CB-7021, CB-7022, CB-7024 User’s Manual

2.6 ~AAO(Data)

Description: Set Module Name Syntax: ~AAO(Data)[CHK](cr)

~ Delimiter character

AA Address of setting module (00 to FF)

O Command for setting module name

(Data) New name for module, max 6 characters

Response: Valid Command: !AA[CHK](cr)

Invalid Command: ?AA[CHK](cr)

Syntax error or communication error may get no

response.

! Delimiter for valid command

? Delimiter for invalid command

AA Address of response module (00 to FF)

Example:

Command: ~01O7021 Receive: !01

Set address 01 module name to 7021, returns successfulful.

Command: $01M Receive: !017021

Read address 01 module name, returns 7021.

Related Command: Sec. 2.5 $AAM

CB-7021, CB-7022, CB-7024 User’s Manual

2.7 #AA(Data)

Description: Output Analog Value Note: The command is for CB-7021/21P only. Syntax: #AA(Data)[CHK](cr)

# Delimiter character AA Address of output module (00 to FF)

(Data) analog output value, reference Sec. 1.10 for its format. Response: Valid Command: >[CHK](cr)

Out of Range: ?AA[CHK](cr) Ignore Command: ![CHK](cr)

Syntax error or communication error may get no re-

sponse. > Delimiter for valid command

? Delimiter while the (Data) is out of range, and the output

will go to the closest value in the setting of module’s range.

! Delimiter for the module’s host watchdog flag is set, and

the output command will be ignored and the output is set to Safe Value.

AA Address of response module (00 to FF)

Example:

Command: $012 Receive: !01300600

Read Address 01 configuration, returns output type 0 to 20

mA, engineer unit format and output change immediate.

Command: #0105.000 Receive: >

Output address 01 value 5.0 mA, returns successful.

Command: #0125.000 Receive: ?01

Output address 01 value 25.0 mA, returns the value is out of

CB-7021, CB-7022, CB-7024 User’s Manual

range, and the output is set to 20.0 mA.

Command: $022 Receive: !02300601

Read address 02 configuration, returns output type 0 to 20

mA, percent of span format, output change immediate.

Command: #02+050.00 Receive: >

Output address 02 value 50% (=10 mA), returns successful.

Command: $032 Receive: !02300602

Read address 03 configuration, returns output type 0 to 20

mA, hexadecimal format, output change immediate.

Command: #03800 Receive: >

Output address 03 value 0x800 (=10 mA), returns successful.

Related Command: Sec. 2.1 %AANNTTCCFF, Sec. 2.2 $AA2 Related Topics: Sec. 1.10 Configuration Tables, Sec. 3.5 Analog Output

CB-7021, CB-7022, CB-7024 User’s Manual

2.8 $AA0

Description: Perform 4 mA Calibration Note: The command is for CB-7021/21P only. Syntax: $AA0[CHK](cr)

$ Delimiter character

AA Address of setting module (00 to FF)

0 command for performing 4 mA calibration

Response: Valid Command: !AA[CHK](cr)

Invalid Command: ?AA[CHK](cr)

Syntax error or communication error may get no re-

sponse.

! Delimiter for valid command

? Delimiter for invalid command

AA Address of response module (00 to FF)

Example:

Command: $010 Receive: !01

Perform address 01 4 mA calibration, returns successful.

Related Command: Sec. 2.9 $AA1, Sec. 2.10 $AA3VV Related Topics: Sec. 1.9 Calibration

CB-7021, CB-7022, CB-7024 User’s Manual

2.9 $AA1

Description: Perform 20 mA Calibration Note: The command is for CB-7021/21P only. Syntax: $AA1[CHK](cr)

$ Delimiter character

AA Address of setting module (00 to FF)

1 command for performing 20 mA calibration

Response: Valid Command: !AA[CHK](cr)

Invalid Command: ?AA[CHK](cr)

Syntax error or communication error may get no

response.

! Delimiter for valid command

? Delimiter for invalid command

AA Address of response module (00 to FF)

Example:

Command: $011 Receive: !01

Perform address 01 20 mA calibration, returns successful.

Related Command: Sec. 2.8 $AA0, Sec. 2.10 $AA3VV Related Topics: Sec. 1.9 Calibration

CB-7021, CB-7022, CB-7024 User’s Manual

2.10 $AA3VV

Description: Trim Calibration Note: The command is for CB-7021/21P only. Syntax: $AA3VV[CHK](cr)

$ Delimiter character

AA Address of setting module (00 to FF)

3 Command for trimming calibration

VV 2’s complement hexadecimal to trim the analog output

value. 00 to 5F to increase 0 to 95 counts, and FF to A1 to

decrease 1 to 95 counts. Each count indicates 4.88µA or

2.44mV.

Response: Valid Command: !AA[CHK](cr)

Invalid Command: ?AA[CHK](cr)

Syntax error or comm. error may get no response.

! Delimiter for valid command

? Delimiter for invalid command

AA Address of response module (00 to FF)

Example:

Command: $0131F Receive: !01

Trim address 01 output to increase 31 counts, returns

successful.

Related Command: Sec. 2.8 $AA0, Sec. 2.9 $AA1, Sec. 2.13 $AA7 Related Topics: Sec. 1.9 Calibration

CB-7021, CB-7022, CB-7024 User’s Manual

2.11 $AA4

Description: Set PowerOn Value Note: The command is for CB-7021/21P only. Syntax: $AA4[CHK](cr)

$ Delimiter character

AA Address of setting module (00 to FF)

4 Command for setting PowerOn Value. Store the current

output value as PowerOn Value.

Response: Valid Command: !AA[CHK](cr)

Invalid Command: ?AA[CHK](cr)

Syntax error or communication error may get no re-

sponse.

! Delimiter for valid command

? Delimiter for invalid command

AA Address of response module (00 to FF)

Example:

Command: #0100.000 Receive: >

Set address 01 output 0.0 mA, returns successful.

Command: $014 Receive: !01

Set address 01 PowerOn V alue, returns successful. The

module 01 will go to 0.0 mA with module power on.

Related Command: Sec. 2.7 #AA(Data) Related Topics: Sec. 3.5 Analog Output

CB-7021, CB-7022, CB-7024 User’s Manual

2.12 $AA6

Description: Last Value Readback Note: The command is for CB-7021/21P only. Syntax: $AA6[CHK](cr)

$ Delimiter character

AA Address of reading module (00 to FF)

6 Command for reading last output command value

Response: Valid Command: !AA(Data)[CHK](cr)

Invalid Command: ?AA[CHK](cr)

Syntax error or communication error may get no

response.

! Delimiter for valid command

? Delimiter for invalid command

AA Address of response module (00 to FF)

(Data) The last output command value. If no output applied to

the module, the (Data) is the PowerOn V alue of the

module. Refer to Sec. 1.10 for formatting.

Example:

Command: #0110.000 Receive: !01

Set address 01 output 10.0, returns successful.

Command: $016 Receive: !0110.000

Read address 01 last output command value, returns 10.000.

Related Command: Sec. 2.7 #AA(Data), Sec. 2.14 $AA8 Related Topics: Sec. 3.7, Current Readback

CB-7021, CB-7022, CB-7024 User’s Manual

2.13 $AA7

Description: Perform 10V Calibration Note: The command is for CB-7021/21P only. Syntax: $AA7[CHK](cr)

$ Delimiter character

AA Address of setting module (00 to FF)

1 command for performing 10V calibration

Response: Valid Command: !AA[CHK](cr)

Invalid Command: ?AA[CHK](cr)

Syntax error or communication error may get no re-

sponse.

! Delimiter for valid command

? Delimiter for invalid command

AA Address of response module (00 to FF)

Example:

Command: $017 Receive: !01

Perform address 01 10V calibration, returns successful.

Related Command: Sec. 2.10 $AA3VV Related Topics: Sec. 1.9 Calibration

CB-7021, CB-7022, CB-7024 User’s Manual

2.14 $AA8

Description: Current Readback Note: The command is for CB-7021/21P only. Syntax: $AA6[CHK](cr)

$ Delimiter character

AA Address of reading module (00 to FF)

8 Command for current readback

Response: Valid Command: !AA(Data)[CHK](cr)

Invalid Command: ?AA[CHK](cr)

Syntax error or communication error may get no re-

sponse.

! Delimiter for valid command

? Delimiter for invalid command

AA Address of response module (00 to FF)

(Data) The current output value. Refer to Sec. 1.9 for format.

Example:

Command: $012 Receive: !01320614

Read address 01 configuration, returns output type 0 to 10V,

9600 bps, eng. unit format and slew rate is 1.0V/Second.

Command: #0110.000 Receive: !01

Set address 01 output 10.0V, returns successful.

Command: $016 Receive: !0110.000

Read address 01 last output command value, returns 10.000.

Command: $018 Receive: !0101.000

Read address 01 current value, returns 1.0V.

Command: $018 Receive: !0101.500

CB-7021, CB-7022, CB-7024 User’s Manual

Read address 01 current value, returns 1.5V.

Related Command: Sec. 2.7 #AA(Data), Sec. 2.12 $AA6 Related Topics: Sec. 3.6 Slew Rate Control, Sec. 3.7 Current Readback

CB-7021, CB-7022, CB-7024 User’s Manual

2.15 #AAN(Data)

Description: Output Analog Value for Channel N Note: The command is for CB-7022 and CB-7024 only. Syntax: #AAN(Data)[CHK](cr)

# Delimiter character

AA Address of output module (00 to FF)

N Output channel (0 to 1 for CB-7022, 0 to 3 for CB-

7024)

(Data) Analog output value, reference Sec. 1.10 for its format. Response: Valid Command: >[CHK](cr)

Invalid Command: ?AA[CHK](cr)

Ignore Command: ![CHK](cr)

Syntax error or communication error may get no

response.

> Delimiter for valid command

? Delimiter for invalid command. When the (Data) is out

of range, and the output will go to the closest value in the

module’s range.

! Delimiter for the module’s host watchdog status is set,

and the output command will be ignored.

AA Address of response module (00 to FF)

Example for CB-7022:

Command: $012 Receive: !013F0600

Read address 01 configuration, returns multichannel output,

9600 bps and engineering unit format.

Command: $0190 Receive: !0110

CB-7021, CB-7022, CB-7024 User’s Manual

Read address 01, channel 0 DA config., returns 4 to 20 mA.

output and change immediate.

Command: #01005.000 Receive: >

Output address 01 channel 0 value 5.0 mA, returns success-

ful.

Command: #01025.000 Receive: ?01

Output address 01 channel 0 value 25 mA, returns out of range,

and the output of channel 0 is set to the 20.0 mA

Example for CB-7024:

Command: $012 Receive: !01300600

Read address 01 configuration, returns type 0 to 20mA, 9600

bps and engineer unit format, output change immediate.

Command: #010+05.000 Receive: >

Output address 01 channel 0 value 5.0 mA, returns success-

ful.

Command: #010+25.000 Receive: ?01

Output address 01 channel 0 value 25.0 mA, returns the value

is out of range, and the output of channel 0 is set to the 20.0

mA.

Related Command: Sec. 2.1 %AANNTTCCFF, Sec. 2.2 $AA2 Related Topics: Sec. 1.10 Configuration Tables, Sec. 3.5 Analog Output

CB-7021, CB-7022, CB-7024 User’s Manual

2.16 $AA0N

Description:

CB-7022: Perform 4 mA Calibration for Channel N

CB-7024: Perform 0 mA/-10V Calibration for Channel N

Note: The command is for CB-7022 and CB-7024 only. Syntax: $AA0N[CHK](cr)

$ Delimiter character

AA Address of setting module (00 to FF)

0 command for doing 4 mA (or 0 mA/-10V) calibration

N channel to calibrate (0 to 1 for CB-7022, 0 to 3 for CB-

7024)

Response: Valid Command: !AA[CHK](cr)

Invalid Command: ?AA[CHK](cr)

Syntax error or communication error may get no

response.

! Delimiter for valid command

? Delimiter for invalid command

AA Address of response module (00 to FF)

Example:

Command: $0101 Receive: !01

Perform Address 01 channel 1 calibration (4 mA for CB-7022,

0 mA or -10.0V for CB-7024), returns successful.

Related Command: Sec. 2.17 $AA1N, Sec. 2.18 $AA3NVV Related Topics: Sec. 1.9 Calibration

CB-7021, CB-7022, CB-7024 User’s Manual

2.17 $AA1N

Description:

CB-7022: Perform 20 mA Calibration for Channel N

CB-7024: Perform 20 mA/+10V Calibration for Channel N

Note: The command is for CB-7022 and CB-7024 only. Syntax: $AA1N[CHK](cr)

$ Delimiter character

AA Address of setting module (00 to FF)

1 Command for perform 20 mA (or +10V) calibration

N Channel to calibrate (0 to 1 for CB-7022, 0 to 3 for

CB-7024)

Response: Valid Command: !AA[CHK](cr)

Invalid Command: ?AA[CHK](cr)

Syntax error or communication error may get no

response.

! Delimiter for valid command

? Delimiter for invalid command

AA Address of response module (00 to FF)

Example:

Command: $0112 Receive: !01

Perform address 01 channel 1 calibration (20 mA for

CB-7022, 20 mA or 10.0V for CB-7024), returns successful.

Related Command: Sec. 2.16 $AA0N, Sec. 2.18 $AA3NVV Related Topics: Sec. 1.9 Calibration

CB-7021, CB-7022, CB-7024 User’s Manual

2.18 $AA3NVV

Description: Trim Calibration for Channel N Note: The command is for CB-7022 and CB-7024 only Syntax: $AA3NVV[CHK](cr)

$ Delimiter character

AA Address of setting module (00 to FF)

3 Command for trimming calibration

N Channel to trim (0 to 1 for CB-7022, 0 to 3 for

CB-7024)

VV 2’s complement hex to trim output value. 00 to 5F to

increase 0 to 95 counts, and FF to A1 to decrease 1 to 95

counts. A count = 4.88µA/2.44mV for CB-7022 and

2.44µA or 1.22mV for CB-7024.

Response: Valid Command: !AA[CHK](cr)

Invalid Command: ?AA[CHK](cr)

Syntax or comm. error may not get response.

! Delimiter for valid command

? Delimiter for invalid command

AA Address of response module (00 to FF)

Example:

Command: $01321F Receive: !01

Trim address 01 channel 2 output 31 counts, returns OK

Related Command: Sec. 2.16 $AA0N, Sec. 2.17 $AA1N Related Topics: Sec. 1.9 Calibration

CB-7021, CB-7022, CB-7024 User’s Manual

2.19 $AA4N

Description: Set PowerOn Value for Channel N Note: The command is for CB-7022 and CB-7024 only. Syntax: $AA4N[CHK](cr)

$ Delimiter character

AA Address of setting module (00 to FF)

4 Command for setting PowerOn Value, store the current

output value as PowerOn Value.

N Channel to set (0 to 1 for CB-7022, 0 to 3 for CB-7024)

Response: Valid Command: !AA[CHK](cr)

Invalid Command: ?AA[CHK](cr)

Syntax error or communication error may not get

response.

! Delimiter for valid command

? Delimiter for invalid command

AA Address of response module (00 to FF)

Example for CB-7024:

Command: #012+00.000 Receive: >

Set address 01 channel 2 output 0.0, returns successful.

Command: $0142 Receive: !01

Set address 01 channel 2 PowerOn Value, returns successful.

The Power-On Value of channel 2 is set to 0.0 now.

Related Command: Sec. 2.15 #AAN(Data), Sec. 2.21 $AA7N Related Topics: Sec. 1.10, Configuration Tables; Sec. 3.5, Analog Output

CB-7021, CB-7022, CB-7024 User’s Manual

2.20 $AA6N

Description: Last Value of Channel N Readback Note: The command is for CB-7022 and CB-7024 only. Syntax: $AA6N[CHK](cr)

$ Delimiter character

AA Address of reading module (00 to FF)

6 Command for reading last output command value

N Channel to readback (0 to 1 for CB-7022, 0 to 3 for CB-

7024)

Response: Valid Command: !AA(Data)[CHK](cr)

Invalid Command: ?AA[CHK](cr)

Syntax or comm. error may not get response.

! Delimiter for valid command

? Delimiter for invalid command

AA Address of response module (00 to FF)

(Data) Last output command value. See Sec. 1.9 for format.

Example for CB-7024:

Command: #013+10.000 Receive: !01

Set address 01 channel 3 output 10.0, returns successful.

Command: $0163 Receive: !01+10.000

Read address 01 channel 3 last output command value, re-

turns 10.000.

Related Command: Sec. 2.15, #AAN (Data); Sec. 2.22, $AA8N Related Topics: Sec. 3.7, Current Readback

CB-7021, CB-7022, CB-7024 User’s Manual

2.21.1 $AA7N

Description: Perform 10V Calibration for Channel N Note: The command is for CB-7022 only. Syntax: $AA7N[CHK](cr)

$ Delimiter character

AA Address of reading module (00 to FF)

7 command for performing 10V calibration

N channel to calibrate (0 to 1)

Response: Valid Command: !AA[CHK](cr)

Invalid Command: ?AA[CHK](cr)

Syntax error or communication error may get no re-

sponse.

! Delimiter for valid command

? Delimiter for invalid command

AA Address of response module (00 to FF)

Example:

Command: $0170 Receive: !01

Perform address 01 channel 0 10V calibration, returns

successful.

Related Command: Sec. 2.16, $AA0N, Sec. 2.17, $AA1N Related Topics: Sec. 1.9, Calibration

CB-7021, CB-7022, CB-7024 User’s Manual

2.21.2 $AA7N

Description: Read PowerOn Value of Channel N Note: The command is for CB-7024 only. Syntax: $AA7N[CHK](cr)

$ Delimiter character

AA Address of reading module (00 to FF)

7 Command for reading PowerOn Value

N Channel to readback (0 to 3)

Response: Valid Command: !AA(Data)[CHK](cr)

Invalid Command: ?AA[CHK](cr)

Syntax error or communication error may not get

response.

! Delimiter for valid command

? Delimiter for invalid command

AA Address of response module (00 to FF)

(Data) Last output command value. See Sec. 1.9 for the

format.

Example:

Command: $0170 Receive: !01+00.000

Read address 01 channel 0 PowerOn Value, returns +10.0.

Related Command: Sec. 2.19, $AA4N

CB-7021, CB-7022, CB-7024 User’s Manual

2.22 $AA8N

Description: Current Value of Channel N Readback Note: The command is for CB-7022 and CB-7024 only. Syntax: $AA8N[CHK](cr)

$ Delimiter character

AA Address of reading module (00 to FF)

8 Command for read current output value

N Channel to readback (0 to 1 for CB-7022, 0 to 3 for CB-

7024)

Response: Valid Command: !AA(Data)[CHK](cr)

Invalid Command: ?AA[CHK](cr)

Syntax error or communication error may not get

response.

! Delimiter for valid command

? Delimiter for invalid command

AA Address of response module (00 to FF)

(Data) Last output command value. See Sec. 1.9 for format.

Example for CB-7024:

Command: $012 Receive: !01320614

Read address 01 configuration, returns output type 0 to 10V,

9600 bps, engineer unit format and slew rate is 1.0V/Second.

Command: #010+10.000 Receive: !01

Set address 01 channel 0 output 10.0V, returns successful.

Command: $0160 Receive: !01+10.000

Read address 01 channel 0 last output command value, re-

turns 10.000.

CB-7021, CB-7022, CB-7024 User’s Manual

Command: $0180 Receive: !01+01.000

Read address 01 channel 0 current value, returns 1.0V.

Command: $0180 Receive: !01+01.500

Read address 01 channel 0 current value, returns 1.5V.

Related Command: Sec. 2.15, #AAN(Data); Sec. 2.20, $AA6N Related Topics: Sec. 3.7, Current Readback

CB-7021, CB-7022, CB-7024 User’s Manual

2.23 $AA9N

Description: Read DA Configuration of Channel N Note: The command is for CB-7022 only. Syntax: $AA9N[CHK](cr)

$ Delimiter character

AA Address of reading module (00 to FF)

9 Command for reading DA configuration

N Channel to read DA configuration (0 to 1)

Response: Valid Command: !AA TS[CHK](cr)

Invalid Command: ?AA[CHK](cr)

Syntax error or communication error may not get

a response.

! Delimiter for valid command

? Delimiter for invalid command

AA Address of response module (00 to FF)

T Analog output type. See Sec. 1.10 for format. S Analog output slew rate. See Sec. 1.10 for format.

Example:

Command: $0190 Receive: !0110

Read address 01 channel 0 DA configuration, returns 4 to 20

mA output and change immediate.

Related Command: Sec. 2.24, $AA9NTS

CB-7021, CB-7022, CB-7024 User’s Manual

2.24 $AA9NTS

Description: Set DA Configuration of Channel N Note: The command is for CB-7022 only. Syntax: $AA9NTS[CHK](cr)

$ Delimiter character

AA Address of reading module (00 to FF)

9 Command for setting DA configuration

N Channel to set DA configuration (0 to 1)

T Analog output type. Refer Sec. 1.10 for type select S Analog output slew rate. Refer Sec. 1.10 for slew rate

select

Response: Valid Command: !AA[CHK](cr)

Invalid Command: ?AA[CHK](cr)

Syntax error or communication error may not get

a response.

! Delimiter for valid command

? Delimiter for invalid command

AA Address of response module (00 to FF)

Example:

Command: $019121 Receive: !01

Set address 01 channel 1 DA configuration: 0 to 10V output

and slew rate 0.625V/Second, returns successful.

Related Command: Sec. 2.23 $AA9N

CB-7021, CB-7022, CB-7024 User’s Manual

2.25 ~**

Description: Host OK.

Host sends this command to all modules broadcasting that the host

is OK.

Command: ~**[CHK](cr)

~ Delimiter character

** command for all modules

Response: No response. Example:

Command: ~** No response

Send Host OK to all modules.

Related Command: Sec. 2.26, ~AA0; Sec. 2.27, ~AA1; Sec. 2.28, ~AA2; Sec. 2.29, ~AA3EVV; Sec. 2.30, ~AA4; Sec. 2.31, ~AA4N; Sec. 2.32, ~AA5; Sec. 2.33, ~AA5N Related Topic: Sec. 3.2, Module Status; Sec. 3.3, Dual Watchdog Operation

CB-7021, CB-7022, CB-7024 User’s Manual

2.26 ~AA0

Description: Read Module Status Syntax: ~AA0[CHK](cr)

~ Delimiter character AA Address of reading module (00 to FF) 0 Command for reading module status

Response: Valid Command: !AASS[CHK](cr)

Invalid Command: ?AA[CHK](cr)

Syntax error or communication error may not get

response. ! Delimiter for valid command ? Delimiter for invalid command AA Address of response module (00 to FF) SS Module Status. The status will store into EEPROM and

only may reset by the command ~AA1.

76543210

1*devreseR2*devreseR

*1: Host watchdog enable flag, 0=Disable, 1=Enable *2: Host watchdog timeout flag, 0=Clear, 1=Set

Example:

Command: ~010 Receive: !0104

Read address 01 module status, returns 04, host watchdog

timeout flag is set.

Related Command: Sec. 2.27, ~AA1; Sec2.29, ~AA3EVV Related Topic: Sec. 3.2, Module Status; Sec. 3.3, Dual Watchdog Operation

CB-7021, CB-7022, CB-7024 User’s Manual

2.27 ~AA1

Description: Reset Module Status Command: ~AA1[CHK](cr)

~ Delimiter character

AA Address of setting module (00 to FF)

1 Command for reset module status

Response: Valid Command: !AA[CHK](cr)

Invalid Command: ?AA[CHK](cr)

Syntax or communication error may not get a

response.

! Delimiter for valid command

? Delimiter for invalid command

AA Address of response module (00 to FF)

Example:

Command: ~010 Receive: !0104

Read address 01 module status, returns 04, host watchdog

timeout flag is set.

Command: ~011 Receive: !01

Reset address 01 module status, returns successful.

Command: ~010 Receive: !0100

Read address 01 module status, returns 00, Module Status is

clear.

Related Command: Sec. 2.25, ~**; Sec. 2.26, ~AA0 Related Topic: Sec. 3.2, Module Status; Sec. 3.3, Dual Watchdog Operation

CB-7021, CB-7022, CB-7024 User’s Manual

2.28 ~AA2

Description: Read Host Watchdog Timeout Interval Command: ~AA2[CHK](cr)

~ Delimiter character

AA Address of reading module (00 to FF)

2 Command for reading host watchdog timeout interval

Response: Valid Command: !AAEVV[CHK](cr)

Invalid Command: ?AA[CHK](cr)

Syntax or communication error may not get a

response.

! Delimiter for valid command

? Delimiter for invalid command

AA Address of response module (00 to FF)

E 1=Enable/0=Disable host watchdog

VV Timeout interval in hexadecimal format, count for 0.1

second, 01 = 0.1 second and FF = 25.5 seconds

Example:

Command: ~012 Receive: !010FF

Read address 01 host watchdog timeout interval, returns host

watchdog disable, and time interval is 25.5 seconds.

Related Command: Sec. 2.25, ~**; Sec. 2.26, ~AA0; Sec. 2.27, ~AA1; Sec. 2.29, ~AA3EVV; Sec. 2.30, ~AA4; Sec. 2.31, ~AA4N; Sec. 2.32, ~AA5; Sec. 2.33, ~AA5N Related Topic: Sec. 3.2, Module Status; Sec. 3.3, Dual Watchdog Operation

CB-7021, CB-7022, CB-7024 User’s Manual

2.29 ~AA3EVV

Description: Set Host Watchdog Timeout Interval Command: ~AA3EVV[CHK](cr)

~ Delimiter character

AA Address of setting module (00 to FF)

3 Command for setting host watchdog timeout value

E 1=Enable/0=Disable host watchdog

VV Timeout interval, from 01 to FF, each for 0.1 second

Response: Valid Command: !AA[CHK](cr)

Invalid Command: ?AA[CHK](cr)

Syntax error or communication error may get no re-

sponse.

! Delimiter for valid command

? Delimiter for invalid command

AA Address of response module (00 to FF)

Example:

Command: ~010 Receive: !0100

Read address 01 module status, returns host watchdog

timeout flag is clear and host watchdog is disabled.

Command: ~013164 Receive: !01

Set address 01 host watchdog timeout interval 10.0

seconds and enable host watchdog, returns successful.

Command: ~012 Receive: !0164

Read address 01 host watchdog timeout interval, returns

10.0 seconds.

Command: ~** Receive: no response

CB-7021, CB-7022, CB-7024 User’s Manual

Reset the host watchdog timer.

Wait for about 10 seconds and don’t send command ~**, the LED

of module will go to flash.

Command: ~010 Receive: !0104

Read address 01 module status, returns host watchdog

timeout flag is set and host watchdog is disabled.

Command: ~011 Receive: !01

Reset address 01 module status, returns successful.

Related Command:

Sec. 2.25 ~**, Sec. 2.26 ~AA0, Sec. 2.27 ~AA1, Sec. 2.28 ~AA2, Sec. 2.30 ~AA4, Sec. 2.31 ~AA4N, Sec. 2.32 ~AA5, Sec. 2.33

~AA5N

Related Topic: Sec. 3.2 Module Status, Sec. 3.3 Dual Watchdog Operation

CB-7021, CB-7022, CB-7024 User’s Manual

2.30 ~AA4

Description: Read Safe Value. Note: The command is for CB-7021/21P only. Command: ~AA4[CHK](cr)

~ Delimiter character

AA Address of reading module (00 to FF)

4 Command for read Safe Value

Response: Valid Command: !AA(Data)[CHK](cr)

Invalid Command: ?AA[CHK](cr)

Syntax error or communication error may not get a

response.

! Delimiter for valid command

? Delimiter for invalid command

AA Address of response module (00 to FF)

(Data) Safe Value of module. Refer Sec. 1.10 for data format

Example:

Command: ~014 Receive: !0105.000

Read address 01 Safe Value, returns 5.0.

Related Command:

Sec. 2.25, ~**; Sec. 2.26, ~AA0; Sec. 2.27, ~AA1; Sec. 2.28, ~AA2; Sec. 2.29, ~AA3EVV; Sec. 2.32, ~AA5

Related Topic:

Sec. 3.2, Module Status; Sec. 3.3, Dual Watchdog Operation

CB-7021, CB-7022, CB-7024 User’s Manual

2.31 ~AA4N

Description: Read Safe Value of Channel N Note: The command is for CB-7022 and CB-7024 only. Command: ~AA4N[CHK](cr)

~ Delimiter character

AA Address of reading module (00 to FF)

4 Command for reading Safe Value

N Channel to read (0 to 1 for CB-7022, 0 to 3 for CB-

7024)

Response: Valid Command: !AA(Data)[CHK](cr)

Invalid Command: ?AA[CHK](cr)

Syntax error or communication error may not get a

response.

! Delimiter for valid command

? Delimiter for invalid command

AA Address of response module (00 to FF)

(Data) Safe Value of module. Refer Sec. 1.10 for data format.

Example for CB-7024:

Command: ~0140 Receive: !01+00.000

Read address 01 channel 0 Safe Value, returns +0.0.

Related Command:

Sec. 2.25, ~**; Sec. 2.26, ~AA0; Sec. 2.27, ~AA1; Sec. 2.28, ~AA2; Sec. 2.29, ~AA3EVV; Sec. 2.33, ~AA5N

Related Topic:

Sec. 3.2, Module Status; Sec. 3.3, Dual Watchdog Operation

CB-7021, CB-7022, CB-7024 User’s Manual

2.32 ~AA5

Description: Set Safe Value. Note: The command is for CB-7021/21P only. Command: ~AA5[CHK](cr)

~ Delimiter character

AA Address of setting module (00 to FF)

5 Command to store current output as Safe Value

Response: Valid Command: !AA[CHK](cr)

Invalid Command: ?AA[CHK](cr)

Syntax or communication error may not get a response.

! Delimiter for valid command

? Delimiter for invalid command

AA Address of response module (00 to FF)

Example:

Command: #0100.000 Receive: !01

Output address 01 value 0.0, returns successful.

Command: ~015 Receive: !01

Set address 01 Safe Value, returns successful.

Related Command:

Sec. 2.25, ~**; Sec. 2.26, ~AA0; Sec. 2.27, ~AA1; Sec. 2.28, ~AA2; Sec. 2.29, ~AA3EVV; Sec. 2.30, ~AA4

Related Topic:

Sec. 3.2, Module Status; Sec. 3.3, Dual Watchdog Operation

CB-7021, CB-7022, CB-7024 User’s Manual

2.33 ~AA5N

Description: Set Safe Value of Channel N Note: The command is for CB-7022 and CB-7024 only. Command: ~AA5N[CHK](cr)

~ Delimiter character

AA Address of setting module (00 to FF)

5 Command to store current output as Safe Value

N Channel to set (0 to 1 for CB-7022, 0 to 3 for CB-7024)

Response: Valid Command: !AA[CHK](cr)

Invalid Command: ?AA[CHK](cr)

Syntax or communication error may not get a response.

! Delimiter for valid command

? Delimiter for invalid command

AA Address of response module (00 to FF)

Example for CB-7024:

Command: #010+05.000 Receive: !01

Output address 01 channel 0 value +5.0, returns successful.

Command: ~0150 Receive: !01

Set address 01 channel 0 Safe Value, returns successful.

Related Command:

Sec. 2.25, ~**; Sec. 2.26, ~AA0; Sec. 2.27, ~AA1; Sec. 2.28, ~AA2; Sec. 2.29, ~AA3EVV; Sec. 2.31, ~AA4N

Related Topic:

Sec. 3.2, Module Status; Sec. 3.3, Dual Watchdog Operation

CB-7021, CB-7022, CB-7024 User’s Manual

3. Application Note

3.1 INIT* pin Operation

Each CB-7000 module has a build-in EEPROM to store

configuration information such as address, type, baud rate and other

information. Sometimes, a user may forget the configuration of the

module. Therefore, the CB-7000 have a special mode named “INIT mode”, to help user to resolve this problem. The “INIT mode” is setting as Address=00, baud rate=9600bps, no checksum.

To enable INIT mode, please follow these steps:

Step 1. Power-down the module.

Step 2. Connect the INIT* pin with the GND pin.

Step 3. Power-up the module.

Step 4. Send command $002(cr) in 9600 bps to read the con-

figuration stored in the module’s EEPROM.

Refer to “7000 Bus Converter User Manual” Sec. 5.1

and “Getting Started” for more information.

3.2 Module Status

Power-On Reset or Module W atchdog Reset will put all

outputs to the PowerOn V alue. The module can accept the host’s

command to change the output value.

Host W atchdog Timeout puts all outputs to the Safe V alue.

The host watchdog timeout flag is set, and

be ignored. The module’s LED will flash. The user must reset the

Module Status via command to go to normal operation.

CB-7021, CB-7022, CB-7024 User’s Manual

an output command will

3.3 Dual Watchdog Operation

Dual W atchdog = Module W atchdog + Host W atchdog

The Module Watchdog is a hardware reset circuit used to

monitor the module’s operating status. While working in harsh or

noisy environment, the module may go down caused by a noise

signal. The outputs go to the PowerOn Value. The module can

accept the host’s command to change the output value.

The Host Watchdog is a software function to monitor the

host’s operating status. Its purpose is to detect a network/

communication problem or a halted host. If a timeout occurs, the

module will place all outputs to their Safe Value to prevent any

problem in the controlled unit/process.

The CB-7000 module with Dual W atchdog makes the

control system more reliable and safer.

3.4 Reset Status

The Reset Status is set when the module is powered-on or

is reset by the Module Watchdog. It is cleared when the command

Read Reset Status ($AA5) sent. This is useful for user to determine

the module’s working status. When Reset Status is set (the module

is reset) the output is changed to the PowerOn V alue. When the

Reset Status is clear (the module is not reset) the output is not

changed.

3.5 Analog Output

The module’s output have three different condition:

<1> Safe V alue. If the host watchdog times-out, the output

CB-7021, CB-7022, CB-7024 User’s Manual

is set to Safe V alue. When the module receives the output command,

such as #AA(Data) or #AAN(Data), the module will returns ignore

(receive:!) and will not change the output to the output command

value. The host watchdog timeout status is set and stored in

EEPROM while the host watchdog timeout interval expired, and can only be cleared by command ~AA1. If the user wants to

change the output, he must first clear the host watchdog timeout

status, then send an output command to change the output to the

desired value.

<2> PowerOn Value. When the module is reset, and/or

when the host watchdog timeout status is clear, the module’s output

is set to predefined PowerOn Value.

<3> Output Command Value. When the host watchdog

timeout status is clear , the user sends command #AA(Data) or

#AAN(Data), to the module to change the output value. The module

will returns successful (receive >). If user sets the output value over

the maximum value of output range, the output will go to maximum

value and returns an out-of-range (receive ?AA) reply. If the output

value is under the minimum value of output range, the output will

go to minimum value and returns out-of-range

(receive ?AA).

3.6 Slew Rate Control

Slew rate control is used to adjust the output rate-of-change.

Most analog output changes are step-changes. In many

applications, this characteristic is undesirable. A gradual output

change under slew rate control is more appropriate.

CB-7021, CB-7022, CB-7024 User’s Manual

The CB-7021/21P/22/24 provides programmable slew rate

control. When an output command is sent to CB-7021/21P/22/24

to change the analog value, the output automatically drives to the

new value at the specified slew rate. The CB-7021/21P/22/24

updates the analog output value at 100 conversions per second.

The programmed slew rate sets the value of each 10 ms step change.

Thus, the output is smoothly stepped until the final output value is

reached. Refer to the specifications for the minimum and maxi-

mum slew rates.

3.7 Current Readback

The CB-7021/21P/22 have an analog-to-digit converter to

monitor the current output signal. The current readback will

indicate an open wiring or load when the readback value is far from

the transmitted output value.

The CB-7024 does not have the analog-to-digit converter

to monitor the current output signal. But, the CB-7024 can returns

the current digital value transferred to the DAC.

NOTE: The CB-7024 can’ t read the actual DAC output

current value , thus can’t detect faulty wiring or loads.

CB-7021, CB-7022, CB-7024 User’s Manual

For your notes.

CB-7021, CB-7022, CB-7024 User’s Manual

For your notes.

CB-7021, CB-7022, CB-7024 User’s Manual

For Your Notes.

CB-7021, CB-7022, CB-7024 User’s Manual

EC Declaration of Conformity

We, Measurement Computing Corp., declare under sole responsibility that the product:

CB-7021/22/24 Digital Output Modules

Part Number Description

to which this declaration relates, meets the essential requirements, is in conformity with, and CE marking has been applied according to the relevant EC Directives listed below using the relevant section of the following EC standards and other normative documents:

EU EMC Directive 89/336/EEC: Essential requirements relat-

ing to electromagnetic compatibility.

EU 55022 Class B: Limits and methods of measurements of

radio interference characteristics of information technology equipment.

EN 50082-1: EC generic immunity requirements. IEC 801-2: Electrostatic discharge requirements for industrial

process measurement and control equipment.

IEC 801-3: Radiated electromagnetic field requirements for in-

dustrial process measurements and control equipment.

IEC 801-4: Electrically fast transients for industrial process mea-

surement and control equipment.

Carl Haapaoja, Director of Quality Assurance

CB-7021, CB-7022, CB-7024 User’s Manual

Measurement Computing Corporation

10 Commerce Way

Suite 1008

Norton, Massachusetts 02766

(508) 946-5100

Fax: (508) 946-9500

E-mail: info@mccdaq.com

www.mccdaq.com

Measurement CB-COM-7021 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual