Measurement CB-7011 User Manual

CB-701 1/CB-7011D,

CB-7018

User ’s Manual

Copyright Sept., 2000 All rights are reserved.

CB-701 1/CB-7011D, CB-7018 User’s Manual

1

Table of Contents

1. Introduction .....................................................5

1.1 More Information.......................................5

1.2 Pin Assignment..........................................6

1.3 Specifications ............................................ 8

1.4 Block Diagram ........................................ 11

1.5 Wire Connection ...................................... 1 2

1.6 Quick Start .............................................. 14

1.7 Default Setting ........................................14

1.8 Jumper Setting......................................... 1 4

1.9 Calibration ...............................................15

1.10 Configuration Tables ............................. 1 6

2. Command.......................................................20

2.1 %AANNTTCCFF ...................................22

2.2 #** ...........................................................2 3

2.3 #AA ......................................................... 24

2.4 #AAN ...................................................... 25

2.5 $AA0 .......................................................26

2.6 $AA1 .......................................................27

2.7 $AA2 .......................................................28

2.8 $AA3 .......................................................29

2.9 $AA4 .......................................................30

2.10 $AA5VV ...............................................31

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CB-7011/CB-7011D, CD-7018 User’s Manual

2.11 $AA6 .....................................................32

2.12 $AA8 .....................................................33

2.13 $AA8V ..................................................34

2.14 $AA9(Data) ...........................................35

2.15 $AAB ....................................................36

2.16 $AAF.....................................................37

2.17 $AAM....................................................38

2.18 $AAZ(Data) ..........................................39

2.19 ~AAO(Data) ..........................................40

2.20 ~AAEV ..................................................41

2.21 @AADI.................................................. 4 2

2.22 @AADO(Data)......................................44

2.23 @AAEAT ..............................................45

2.24 @AAHI(Data) ....................................... 4 6

2.25 @AALO(Data)......................................47

2.26 @AADA................................................ 48

2.27 @AACA................................................49

2.28 @AARH................................................50

2.29 @AARL ................................................51

2.30 @AARE ................................................52

2.31 @AACE ................................................53

2.32 ~**......................................................... 54

2.33 ~AA0.....................................................55

2.34 ~AA1.....................................................56

CB-701 1/CB-7011D, CB-7018 User’s Manual

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2.35 ~AA2.....................................................57

2.36 ~AA3EVV .............................................58

2.37 ~AA4.....................................................59

2.38 ~AA5PPSS ............................................60

3. Application Note............................................61

3.1 INIT* pin Operation ................................61

3.2 Module Status .......................................... 6 1

3.3 Dual Watchdog Operation.......................6 2

3.4 Digital Input and Event Counter ............. 6 2

3.5 Digital Output .......................................... 6 2

3.6 High/Low Alarm......................................63

3.7 Thermocouple Measurement....................63

HM CB-7011 & 7018.p65

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CB-7011/CB-7011D, CD-7018 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
common features of CD-7011/CB-701 1D, CB-7018 are as follows:

l 3000VDC isolated analog input
l 24-bits sigma-delta ADC to provide excellent accuracy
l Thermocouples are directly connected with built-in CJC
l Software calibration

The CB-7011 is a single channel analog input module. The
CB-7011D is the CB-7011 with a 4½ digit LED display. The CB­7018 is a 8-channel analog input module. The CB-7011P/11PD/
18P are enhanced versions of CB-7011/11D/18. The CB-7011P/
11PD/18P support two additional thermocouple types and enhance
the measurement range of some types.

1.1 More Information

Refer to “CB-7000 Bus Converter User Manual” chap­ter 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 Dimensions

CB-701 1/CB-7011D, CB-7018 User’s Manual

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1.2 Pin Assignments

6

CB-7011/CB-7011D, CD-7018 User’s Manual

CB-701 1/CB-7011D, CB-7018 User’s Manual

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1.3 Specifications

CB-701 1/CB-7011D

Analog Input

Input Channel:1
Input T ype:

mV, V, mA (with external

125 ohm resistor)

Thermocouple: Type J, K,

T, E, R, S, B, N, and C

Sampling Rate:

10 Samples/Second
Bandwidth: 5.24 Hz
Accuracy: ±0.05%

Logic Level 0: +1V max
Logic Level 1: +3.5 to 30V

Event Counter

Max Input Frequency: 50 Hz
Min. Pulse W idth: 1 ms

Displayed LED

4½ digits (for CB-7011D)

Power Supply

Input: +10 to +30 VDC
Consumption:

0.9 W for CB-7011
Zero Drift: 0.5µV/°C
Span Drift: 25 ppm/°C
CMR@50/60Hz: 150dB
NMR@50/60Hz: 100dB
Input Impedance: 20M Ohms
Isolation: 3000VDC

Digital Output

2 channel
Open Collector to 30V
Output Load: sink 30 mA max
Power Dissipation: 300 mW

1.5 W for CB-7011D

Digital Input

1 channel

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CB-7011/CB-7011D, CD-7018 User’s Manual

CB-7011P/CB-7011PD

Analog Input

Input Channel:1
Input T ype:

mV, V, mA(with external

125 ohms resistor)

Thermocouple: Type J, K,

T, E, R, S, B, N, C, L, M

Sampling Rate:

10 Samples/Second
Bandwidth: 5.24 Hz
Accuracy: ±0.05%

Logic Level 0: +1V max
Logic Level 1: +3.5 to 30V

Event Counter

Max Input Frequency: 50 Hz
Min. Pulse W idth: 1 ms

Displayed LED

4½ digits (for CB-7011PD)

Power Supply

Input: +10 to +30 VDC
Consumption:

0.9W for CB-7011P
Zero Drift: 0.5µV/°C
Span Drift: 25ppm/°C
CMR@50/60Hz: 150dB
NMR@50/60Hz: 100dB
Input Impedance: 20M Ohms
Isolation: 3000VDC

Digital Output

2 channel
Open Collector to 30V
Output Load: sink 30mA max
Power Dissipation: 300mW

1.5W for CB-7011PD

Digital Input

1 channel

CB-701 1/CB-7011D, CB-7018 User’s Manual

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CB-7018

CB-7018P

Analog Input

Input Channel:

8 differential or 6 differen­tial and 2 single-ended.
Jumper select.

Input T ype:

mV, V, mA(with external
125 ohms resistor)

Thermocouple: Type J, K,
T, E, R, S, B, N, C

Sampling Rate:

Analog Input

Input Channel:

8 differential or 6 differen­tial and 2 single-ended.
Jumper-selected.

Analog Input T ype:

mV, V, mA(with external
125 ohms resistor)

Thermocouple: Type J, K,
T, E, R, S, B, N, C, L, M

Sampling Rate:

10 Samples/Second
Bandwidth: 15.7 Hz
Accuracy: ±0.1%
Zero Drift: 0.5µV/°C
Span Drift: 25ppm/°C
CMR @ 50/60Hz: 150dB
NMR @ 50/60Hz: 100dB
Input Impedance: 20 MOhms
Overvoltage Protection: ±35V
Isolation: 3000VDC

Power Supply

10 Samples/Second
Bandwidth: 15.7 Hz
Accuracy: ±0.1%
Zero Drift: 0.5µV/°C
Span Drift: 25 ppm/°C
CMR @ 50/60Hz: 150dB
NMR @ 50/60Hz: 100dB
Input Impedance: 20 MOhms
Overvoltage Protection: ±35V
Isolation: 3000VDC

Power Supply

Input: +10 to +30 VDC
Consumption: 1.0W

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CB-7011/CB-7011D, CD-7018 User’s Manual

Input: +10 to +30 VDC
Consumption: 1.0W

1.4 Block Diagram

CB-701 1/CB-7011D, CB-7018 User’s Manual

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1.5 Wire Connection

CB-7011/11D/11P/11PD

Analog Input W ire Connection

CB-7011/11D/11P/11PD

Digital Output Wire Connection

CB-7018/18P Analog Input

CB-701 1/11D/1 1P/1 1PD Digital

Input W ire Connection

Channel 0 to 5 W ire Connection

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CB-7011/CB-7011D, CD-7018 User’s Manual

CB-7018/18P Analog Input

CB-7018/18P Analog Input

Channel 6 and 7 Wire Connec­tion, while the jumper JP1 set­ting is 8 differential mode.
(Remove the cover to gain access
to jumper JP1.)

Channel 6 and 7 Wire Connec­tion, while the jumper JP1 set­ting is INIT* mode.

CB-701 1/CB-7011D, CB-7018 User’s Manual

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1.6 Quick Start

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

“Getting Start” for more details.

1.7 Default Setting

Default setting for CB-701 1/11D/1 1P/1 1PD/18/18P:

l Address: 01
l Analog Input Type: Type 05, -2.5 to +2.5 V
l Baud rate: 9600 bps
l Checksum disable, 60 Hz rejection, engineering unit format
l CB-7018/18P set as INIT* mode; there are six differential and

two single-ended analog inputs.

1.8 Jumper Setting

CB-7018/18P: Jumper JP1 for select the pin INIT*/Vin 7­Select 8 differential mode; the pin INIT*/Vin7- is set to V in7-

Select INIT* mode; the pin INIT*/V in7- is set to INIT*

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CB-7011/CB-7011D, CD-7018 User’s Manual

1.9 Calibration

Read Carefully Before Performing Calibration

Calibration Requirement for CB-7011/1 1D/1 1P/11PD/18/18P:

edoCepyT00102030405060
tupnI.niMVm0Vm0Vm0Vm0V0V0Am0

tupnIxaM

51+

Vm

05+

Vm

001+

Vm

005+

V1+V5.2+

Vm

02+

Am

Notification:

1. When calibrating a type 06, connect an external shunt resistor,
125 ohms, 0.1% (Ref Sec. 1.5).

2. Connect calibration voltage (or current) signal to module’ s in­put. For CB-7018/18P, connect to channel 0. (For wire con­nection reference, see Sec. 1.5)

3. Before calibration, warm-up the module for about 30 minutes
to improve the accuracy .

Example Calibration Sequence for T ype 00:

1. Set Type to 00. Refer to Sec. 2.1.

2. Enable Calibration. Refer to Sec. 2.20.

3. Apply Zero Calibration Voltage (0 mV)

4. Perform Zero Calibration Command Refer to Sec. 2.6.

5. Apply Span Calibration Voltage (15mV)

6. Perform Span Calibration Command Refer to Sec. 2.5.

7. Repeat step 1 to step 6 three times.

Calibration sequence for other type is similiar but different in step
1 to set different a type.

CB-701 1/CB-7011D, CB-7018 User’s Manual

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1.10 Configuration Tables

Configuration T able of CB-701 1/1 1D/1 1P/1 1PD/18/18P:

Baud rate Setting (CC)

edoC30405060708090A0

etarduaB0021004200840069002910048300675002511

Analog Input Type Setting (TT)

edoCepyT00102030405060
tupnI.niMVm51-Vm05-Vm001-Vm005-V1-V5.2-Am02­tupnIxaMVm51+Vm05+Vm001+Vm005+V1+V5.2+Am02+

Type Code 0E 0F 10 11 12 13 14 15 16 17 18

TC Type J K T E R S B N C L M

Min Temp 0 -200 -200 -200 0 0 0 -270 0 -200 -200
Max Temp 750 1250 350 900 1450 1450 1700 1300 2320 800 100
The temperatures shown are in degrees Celsius.

T.C. Type L and M for CB-7011P/11PD/18P only.

Data Format Setting (FF)

76543210

1*2* 0000 3*

*1: Filter Select: 0 = 60 Hz rejection

1 = 50 Hz rejection
*2: Checksum Bit: 0=Disable, 1=Enable
*3: 00 = Engineering Unit Format

01 = Percent Format
10 = 2’s Complement HEX Format

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CB-7011/CB-7011D, CD-7018 User’s Manual

Analog Input Type and Data Format Table

epyT

edoC

00

Vm

10

Vm

20

Vm

egnaRtupnItamroFataD.S.F+oreZ.S.F-

tinUreenignE000.51+000.00+000.51-

51+ot51-

RSFfo%00.001+00.000+00.001-

XEHtnemelpmocs'2FFF700000008

tinUreenignE000.05+000.00+000.05-

05+ot05-

RSFfo%00.001+00.000+00.001-

XEHtnemelpmocs'2FFF700000008

tinUreenignE00.001+00.000+00.001-

001+ot001-

RSFfo%00.001+00.000+00.001-

XEHtnemelpmocs'2FFF700000008

30

40V1+ot1-

50

60

tinUreenignE00.005+00.000+00.005-

005+ot005-

RSFfo%00.001+00.000+00.001-

Vm

XEHtnemelpmocs'2FFF700000008

tinUreenignE0000.1+0000.0+0000.1-

RSFfo%00.001+00.000+00.001-

XEHtnemelpmocs'2FFF700000008

tinUreenignE0005.2+0000.0+0005.2-

5.2+ot5.2­RSFfo%00.001+00.000+00.001-

V

XEHtnemelpmocs'2FFF700000008

tinUreenignE000.02+000.00+000.02-

02+ot02-

RSFfo%00.001+00.000+00.001-

Am

XEHtnemelpmocs'2FFF700000008

CB-701 1/CB-7011D, CB-7018 User’s Manual

17

epyT

edoC

egnaRtupnItamroFataD.S.F+oreZ.S.F-

epyTJ

E0

F0

01

11

067ot012-

suisleCeerged

epyTK

2731ot072-

suisleCeerged

epyTT

004ot072-

suisleCeerged

epyTE

0001ot072-

tinUreenignE00.067+000.00+00.012-

RSFfo%00.001+00.000+36.720-

XEHtnemelpmocs'2FFF700002ACD

tinUreenignE0.2731+000.00+0.0720-

RSFfo%00.001+00.000+86.910-

XEHtnemelpmocs'2FFF700000D6E

tinUreenignE00.004+00.000+00.072-

RSFfo%00.001+00.000+05.760-

XEHtnemelpmocs'2FFF70000A99A

tinUreenignE0.0001+00.000+0.0720-

RSFfo%00.001+00.000+00.720-

suisleCeerged

epyTR

21

31

41

8671ot0

suisleCeerged

epyTS

8671ot0

suisleCeerged

epyTB

0281ot0

suisleCeerged

epyTN

RSFfo%00.001+0.0000+0.0000+

RSFfo%00.001+00.000+0.0000+

RSFfo%00.001+00.000+0.0000+

XEHtnemelpmocs'2FFF7000017DD

tinUreenignE0.8671+0.0000+0.0000+

XEHtnemelpmocs'2FFF700000000

tinUreenignE0.6871+0000.0+0.0000+

XEHtnemelpmocs'2FFF700000000

tinUreenignE0.0281+000.00+0.0000+

XEHtnemelpmocs'2FFF700000000

tinUreenignE0.0031+000.00+0.0720-

18

51

0031ot072-

suisleCeerged

RSFfo%00.001+00.000+77.02-

XEHtnemelpmocs'2FFF70000B65E

CB-7011/CB-7011D, CD-7018 User’s Manual

epyT

egnaRtupnItamroFataD.S.F+oreZ.S.F-

edoC

epyTC

tinUreenignE0.0232+000.00+000.00+

61

0232ot0

RSFfo%00.001+00.000+00.000+

suisleCeerged

XEHtnemelpmocs'2FFF700000000

tinUreenignE00.008+000.00+00.002-

epyTL

1*

71

008ot002-

RSFfo%00.001+00.000+00.520-

suisleCeerged

XEHtnemelpmocs'2FFF70000000E

tinUreenignE00.001+00.000+00.002-

epyTM

1*

81

001ot002-

RSFfo%00.050+00.000+00.001-

suisleCeerged

XEHtnemelpmocs'2000400000008

1*

P8107-IdnaDP1107-I,P1107-IrofelbaliavaylnO:

CB-701 1/CB-7011D, CB-7018 User’s Manual

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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)

steSdnammoClareneG

dnammoCesnopseRnoitpircseDnoitceS

FFCCTTNNAA%AA!noitarugifnoCeludoMteS 1.2.ceS

**#esnopseRoNgnilpmaSdezinorhcnyS 2.2.ceS

AA#)ataD(>tupnIgolanAdaeR 3.2.ceS

NAA#)ataD(>

morftupnIgolanAdaeR

Nlennahc

0AA$AA!noitarbilaCnapSmrofreP 5.2.ceS
1AA$AA!noitarbilaCoreZmrofreP 6.2.ceS
2AA$FFCCTTAA!noitarugifnoCdaeR 7.2.ceS
3AA$)ataD(>erutarepmeTCJCdaeR 8.2.ceS
4AA$)ataD(SAA>ataDdezinorhcnySdaeR 9.2.ceS

VV5AA$AA!elbanElennahCteS 01.2.ceS
6AA$VVAA!sutatSlennahCdaeR 11.2.ceS
8AA$VAA!noitarugifnoCDELdaeR 21.2.ceS

V8AA$AA!noitarugifnoCDELteS 31.2.ceS

4.2.ceS

20

)ataD(9AA$AA!eulaVtesffOCJCteS 41.2.ceS
BAA$SAA!noitcetceDnepO.C.T 51.2.ceS
FAA$)ataD(AA!noisreVerawmriFdaeR 61.2.ceS
MAA$)ataD(AA!emaNeludoMdaeR 71.2.ceS

)ataD(ZAA$AA!ataDDELdneS 81.2.ceS

CB-7011/CB-7011D, CD-7018 User’s Manual

)deunitnoC(steSdnammoClareneG

)ataD(OAA~AA!emaNeludoMteS 91.2.ceS

VEAA~AA!noitarbilaCelbasiD/elbanE 02.2.ceS

steSdnammoCretnuoCtnevEdnamralA,tuptuO/tupnIlatigiD

IDAA@IIOOSAA!

dnaO/IlatigiDdaeR

sutatSmralA

)ataD(ODAA@AA!tuptuOlatigiDteS 22.2.ceS

TAEAA@AA!mralAelbanE 32.2.ceS

)ataD(IHAA@AA!mralAhgiHteS 42.2.ceS

)ataD(OLAA@AA!mralAwoLteS 52.2.ceS
ADAA@AA!mralAelbasiD 62.2.ceS
ACAA@AA!mralAhctaLraelC 72.2.ceS

HRAA@)ataD(AA!mralAhgiHdaeR 82.2.ceS
LRAA@)ataD(AA!mralAwoLdaeR 92.2.ceS

ERAA@)ataD(AA!retnuoCtnevEdaeR 03.2.ceS

12.2.ceS

ECAA@AA!retnuoCtnevEraelC 13.2.ceS

steSdnammoCgodhctaWtsoH

**~esnopseRoNKOtsoH 23.2.ceS

0AA~SSAA!sutatSeludoMdaeR 33.2.ceS
1AA~AA!sutatSeludoMteseR 43.2.ceS

godhctaWtsoHdaeR

2AA~VVAA!

eulaVtuoemiT

godhctaWtsoHteS

VVE3AA~AA!

eulaVtuoemiT

dnaeulaVnOrewoPdaeR

4AA~SSPPAA!

eulaVefaS

dnaeulaVnOrewoPteS

SSPP5AA~AA!

eulaVefaS

53.2.ceS

63.2.ceS

73.2.ceS

83.2.ceS

CB-701 1/CB-7011D, CB-7018 User’s Manual

21

2.1 %AANNTTCCFF

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

% a delimiter character
A A 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 baudrate 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, it is neces-

sary to short the INIT* pin to ground.

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

Invalid Command: ?AA[CHK](cr)
A syntax error or communication error may yield no

response.
! delimiter for valid command
? delimiter for invalid command. If you change baud rate

or checksum setting without shorting INIT* to ground, the
module will return invalid command.

A A address of response module (00 to FF)

Example:

Command: %0102050600 Receive: !02

Change address from 01 to 02, return success.

Related Command:
$AA2 (Sec. 2.7)
Related Topics:
Configuration Tables (Sec. 1.10), INIT* pin Operation (Sec. 3.1)

22

CB-7011/CB-7011D, CD-7018 User’s Manual

2.2 #**

Description: Synchronized Sampling
Note: The command is for CB-7011/11D/11P/11PD only.
Syntax: #**[CHK](cr)

# a delimiter character
** synchronized sampling command

Response: No response
Example:

Command: $014 Receive: ?01

Read synchronized sampling data, returns no valid data .

Command: #** No response

Send synchronized sampling command.

Command: $014 Receive: >011+025.123

First read, get status=1, first read.

Command: $014 Receive: >010+025.123

Second read, get status=0, read verified.

Related Command:
$AA4 (Sec. 2.9)

CB-701 1/CB-7011D, CB-7018 User’s Manual

23

2.3 #AA

Description: Read Analog Input
Syntax: #AA[CHK](cr)

# delimiter character
A A address of reading module(00 to FF)
Response: Valid Command: >(Data)[CHK](cr)

Syntax error or communication error may yield no re-

sponse.
> delimiter for valid command
(Data) analog input value, reference Sec. 1.10 for its format.

For CB-7018/18P , the data is the combination for each chan­nel respectively .

Example:

Command: #01 Receive: >+02.635

Read address 01, return data success.

Command: #02 Receive: >4C53

Read address 02, return data in HEX format success.
Command: #04
Receive: >+05.123+04.153+07.234-02.356+10.000-

05.133+02.345+08.234
Module address 04 is CB-7018. Read address 04, get analog
input data of eight channels.

Related Command:
%AANNTTCCFF (Sec. 2.1), $AA2 (Sec. 2.7)
Related Topics:
Configuration T ables (Sec. 1.10)

24

CB-7011/CB-7011D, CD-7018 User’s Manual

2.4 #AAN

Description: Read Analog Input from channel N
Note: The command is for CB-7018/18P only.
Syntax: #AAN[CHK](cr)

# delimiter character
AA address of reading module (00 to FF)
N channel to read, from 0 to 7
Response: Valid Command: >(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
A A address of response module(00 to FF)
(Data) analog input value, reference Sec. 1.10 for its format

Example:

Command: #032 Receive: >+02.513

Read address 03 channel 2, get data success.

Command: #029 Receive: ?02

Read address 02 channel 9, return error channel number.

Related Command:
%AANNTTCCFF (Sec. 2.1), $AA2 (Sec 2.7)
Related Topics:
Configuration T ables (Sec. 1.10)

CB-701 1/CB-7011D, CB-7018 User’s Manual

25

2.5 $AA0

Description: Perform Span Calibration
Syntax: $AA0[CHK](cr)

$ delimiter character
AA address of setting module (00 to FF)
0 command for performing span 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 or the calibration is not

enabled

A A address of response module(00 to FF)

Example:

Command: $010 Receive: !01

Perform address 01 span calibration, return success.

Command: $020 Receive: ?02

Perform address 02 span calibration, return the calibration is

not enabled before perform calibration command.

Related Command:
$AA1 (Sec. 2.6), ~AAEV (Sec. 2.20)
Related Topics:
Calibration (Sec. 1.9)

26

CB-7011/CB-7011D, CD-7018 User’s Manual

2.6 $AA1

Description: Perform Zero Calibration
Syntax: $AA1[CHK](cr)

$ delimiter character
AA address of setting module (00 to FF)
1 command for performing zero 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 or the calibration is not

enabled

A A address of response module(00 to FF)

Example:

Command: $011 Receive: !01

Perform address 01 zero calibration, return success.

Command: $021 Receive: ?02

Perform address 02 zero calibration, return the calibration is

not enabled before perform calibration command.

Related Command:
$AA0 (Sec. 2.5), ~AAEV (Sec. 2.20)
Related Topics:
Calibration (Sec. 1.9)

CB-701 1/CB-7011D, CB-7018 User’s Manual

27

2.7 $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 communication error may get no re-

sponse.
! delimiter for valid command
? delimiter for invalid command
A A address of response module(00 to FF)
TT type code of module (reference Sec. 1.10)
CC baudrate code of module (reference Sec. 1.10)
FF data format of module (reference Sec. 1.10)

Example:

Command: $012 Receive: !01050600

Read address 01 configuration, return success.

Command: $022 Receive: !02030602

Read address 02 configuration, return success.

Related Command:
%AANNTTCCFF (Sec. 2.1)
Related Topics:
Config. Tables (Sec. 1.10), INIT* pin Operation (Sec. 3.1)

28

CB-7011/CB-7011D, CD-7018 User’s Manual

2.8 $AA3

Description: Read CJC Temperature
Syntax: $AA3[CHK](cr)

$ delimiter character
AA address of reading module (00 to FF)
3 command for reading CJC temperature
Response: Valid Command: >(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
A A address of response module(00 to FF)
(Data) CJC temperature in degrees Celsius.

Example:

Command: $033 Receive: >+0025.4

Read address 03 CJC temperature, return 25.4°C.

Related Command:
$AA9(Data) (Sec. 2.14)

CB-701 1/CB-7011D, CB-7018 User’s Manual

29

2.9 $AA4

Description: Read Synchronized Data
Note: The command is for CB-7011/11D/1 1P/11PD only.
Syntax: $AA4[CHK](cr)

$ delimiter character
AA address of reading module (00 to FF)
4 command for reading synchronized data
Response: Valid Command: >AAS(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 or the module does not

receive command #** before the command $AA4.
A A address of response module(00 to FF)
S status of synchronized data, 1 = first time read, 0 =

has been read
(Data) synchronized data, format reference Sec. 1.10

Example:

See example of Sec. 2.2 #**
Related Command:
Sec. 2.2 #**

30

CB-7011/CB-7011D, CD-7018 User’s Manual

2.10 $AA5VV

Description: Set Channel Enable
Note: The command is for CB-7018/18P only.
Syntax: $AA5VV[CHK](cr)

$ delimiter character
AA address of setting module (00 to FF)
5 command for settting channel enable
VV channel enable/disable, 00 is all disabled, and FF is all

enabled.

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
A A address of response module(00 to FF)

Example:

Command: $0155A Receive: !01

Set address 01 enable channel 1,3,4,6 and disable channel

0,2,5,7, return success.

Command: $016 Receive: !015A

Read address 01 channel status, return channel 1,3,4,6 en-

able and channel 0,2,5,7 disable.

Related Command:
$AA6 (Sec. 2.11)

CB-701 1/CB-7011D, CB-7018 User’s Manual

31

2.11 $AA6

Description: Read Channel Status
Note: The command is for CB-7018/18P only.
Syntax: $AA6[CHK](cr)

$ delimiter character
AA address of reading module (00 to FF)
6 command for reading channel status
Response: Valid Command: !AA VV[CHK](cr)

Invalid Command: ?AA[CHK](cr)
Syntax error or communication error may get no

response.
! delimiter for valid command
? delimiter for invalid command
A A address of response module(00 to FF)
VV channel enable/disable, 00 is all disabled, and FF is all

enabled.

Example:

Command: $015A5 Receive: !01

Set address 01, enable channel 0,2,5,7 and disable channel

1,3,4,6 , return success.

Command: $016 Receive: !01A5

Read address 01 channel status, return channel 0,2,5,7 en-

able and channel 1,3,4,6 disable.

Related Command:
$AA5VV (Sec. 2.10)

32

CB-7011/CB-7011D, CD-7018 User’s Manual

2.12 $AA8

Description: Read LED Configuration
Note: The command is for CB-7011D/11PD only.
Syntax: $AA8[CHK](cr)

$ delimiter character
AA address of reading module (00 to FF)
8 command for setting LED configuration
Response: Valid Command: !AA V[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
A A address of response module(00 to FF)
V LED configuration

1=module control, 2=host control

Example:

Command: $018 Receive: !011

Read address 01 LED configuration, return module control.

Command: $028 Receive: !012

Read address 02 LED configuration, return host control.

Related Command:
$AA8V (Sec. 2.13), $AAZ(Data) (Sec. 2.18)

CB-701 1/CB-7011D, CB-7018 User’s Manual

33

2.13 $AA8V

Description: Set LED Configuration
Note: The command is for CB-7011D/11PD only.
Syntax: $AA8V[CHK](cr)

$ delimiter character
AA address of setting module (00 to FF)
8 command for setting LED configuration
V 1=Set LED to module, 2=Set LED to host
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
A A address of response module(00 to FF)

Example:

Command: $0182 Receive: !01

Set address 01 LED to host control, return success.

Command: $0281 Receive: !02

Set address 02 LED to module control, return success.

Related Command:
$AA8 (Sec. 2.12), $AAZ(Data) (Sec. 2.18)

34

CB-7011/CB-7011D, CD-7018 User’s Manual

2.14 $AA9(Data)

Description: Set CJC Offset Value
Syntax: $AA9(Data)[CHK](cr)

$ delimiter character
AA address of setting module (00 to FF)
9 command for setting CJC offset value
(Data) CJC offset value comprises a sign and 4 hexadecimal

digits, from -1000 to +1000, each count is 0.01°C.

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: $019+0010 Receive: !01

Set address 01 CJC offset increase 16 counts (+0.16°C), re-

turn success.

Related Command:
$AA3 (Sec. 2.8)

CB-701 1/CB-7011D, CB-7018 User’s Manual

35

2.15 $AAB

Description: Thremocouple Open Detection
Note: The command is for CB-7011/11D/1 1P/11PD only.
Syntax: $AAB[CHK](cr)

$ delimiter character
AA address of reading module (00 to FF)
B command for reading thremocouple open status
Response: Valid Command: !AAS[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)
S 0=close-loop detection

1=open-circuit detection, need to check the thermocouple

Example:

Command: $01B Receive: !010

Read address 01, thermocouple open status, return the thermo­couple is close-loop.

36

CB-7011/CB-7011D, CD-7018 User’s Manual

2.16 $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, return version A2.0.

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

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

CB-701 1/CB-7011D, CB-7018 User’s Manual

37

2.17 $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: !017018

Read address 01 module name, return name 7018.

Command: $03M Receive: !03701 1 D

Read address 03 module name, return name 7011D.

Related Command:
~AAO(Data) (Sec. 2.19)

38

CB-7011/CB-7011D, CD-7018 User’s Manual

2.18 $AAZ(Data)

Description: Set LED Data
Note: The command is for CB-7011D/11PD only.
Syntax: $AAZ(Data)[CHK](cr)

$ delimiter character
AA address of setting module (00 to FF)
Z command for setting LED data
(Data) data for show on the LED, from -19999. to +19999. The

data need sign, 5 digits and decimal point.

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 or LED not set to host

control

A A address of response module (00 to FF)

Example:

Command: $01Z+123.45 Receive: !01

Send address 01 LED data +123.45, return success.

Command: $02Z+512.34 Receive: ?02

Send address 02 LED data +512.34, return the LED is not

setting in the host mode.

Related Command:
$AA8 (Sec. 2.12), $AA8V (Sec. 2.13)

CB-701 1/CB-7011D, CB-7018 User’s Manual

39

2.19 ~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
A A address of response module(00 to FF)

Example:

Command: ~01O7018 Receive: !01

Set address 01 module name to 7018, return success.

Command: $01M Receive: !017018

Read address 01 module name, return 7018.

Related Command:
$AAM (Sec. 2.17)

40

CB-7011/CB-7011D, CD-7018 User’s Manual

2.20 ~AAEV

Description: Enable/Disable Calibration
Syntax: ~AAEV[CHK](cr)

~ delimiter character
AA address of setting module (00 to FF)
E command for enable/disable calibration
V 1=enable calibration, 0=disable 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
A A address of response module(00 to FF)

Example:

Command: $010 Receive: ?01

Perform address 01 span calibration, return it is not ready for

calibration.

Command: ~01E1 Receive: !01

Set address 01 to enable calibration, return success.

Command: $010 Receive: !01

Preform address 01 span calibration, return success.

Related Command:
$AA0 (Sec. 2.5), $AA1 (Sec. 2.6)
Related Topic:
Calibration (Sec. 1.9)

CB-701 1/CB-7011D, CB-7018 User’s Manual

41

2.21 @AADI

Description: Read Digital I/O and Alarm Status
Note: The command is for CB-7011/11D/1 1P/11PD only.
Syntax: @AADI[CHK](cr)

@ delimiter character
AA address of reading module (00 to FF)
DI command for reading digital I/O and alarm status
Response:Valid Command: !AASOOII[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)
S alarm enable status, 0=alarm disable, 1=momentary alarm

enabled, 2=latch alarm enabled.

OO digital output status, 00=DO0 off, DO1 off, 01=DO0

on, DO1 off, 02=DO0 off, DO1 on, 03=OD0 on, DO1 on.

I I digital input status, 00=input low level, 01=input high

level.

Example:

Command: @01DI Receive: !0100001

Read address 01 digital I/O status, return alarm disable,

digital outputs all off, and digital input high level.

Command: @02DI Receive: !0210100

Read address 02 digital I/O status, return momentary alarm

42

CB-7011/CB-7011D, CD-7018 User’s Manual

enable, high alarm is clear , low alarm is set, and digital input is
high.

Related Command:
@AADO(Data) (Sec. 2.22), @AAEA T (Set. 2.23), @AADA (Sec.

2.26 )
Related Topic:

Digital Input and Event Counter (Sec. 3.4), Digital Output (Sec.

3.5), High/Low Alarm (Sec. 3.6)

CB-701 1/CB-7011D, CB-7018 User’s Manual

43

2.22 @AADO(Data)

Description: Set Digital Output
Note: The command is for CB-7011/11D/1 1P/11PD only.
Syntax: @AADI[CHK](cr)

@ delimiter character
AA address of setting module (00 to FF)
DO command for setting digital output
(Data) output value, 00=DO0 off, DO1 off, 01=DO0 on, DO1

off, 02=DO0 off, DO1 on, 03=DO0 on, DO1 on

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. When the alarm is

enabled, the command will return invalid.

A A address of response module(00 to FF)

Example:

Command: @01DO00 Receive: !01

Set address 01 digital output 00, return success.

Related Command:
@AADI (Sec. 2.21), @AAEAT (Set. 2.23), @AADA (Sec. 2.26)
Related Topic:
Sec. 3.5 Digital Output

44

CB-7011/CB-7011D, CD-7018 User’s Manual

2.23 @AAEAT

Description: Enable Alarm
Note: The command is for CB-7011/11D/11P/11PD only.
Syntax: @AAEAT[CHK](cr)

@ delimiter character
AA address of setting module (00 to FF)
EA command for enable alarm.
T alarm type, M=momentary alarm, L=latch alarm.
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
A A address of response module(00 to FF)

Example:

Command: @01EAM Receive: ?01

Set address 01 momentary alarm, return success.

Related Command:
@AADA (Sec. 2.26), @AACA (Sec. 2.27) Related Topic:
High/Low Alarm (Sec. 3.6)

CB-701 1/CB-7011D, CB-7018 User’s Manual

45

2.24 @AAHI(Data)

Description: Set High Alarm
Note: The command is for CB-7011/11D/1 1P/11PD only.
Syntax: @AADI[CHK](cr)

@ delimiter character
AA address of setting module (00 to FF)
HI command for setting high alarm value
(Data) high alarm values, data format is in engineer unit format.
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
A A address of response module(00 to FF)

Example:

Command: @01HI+2.5000 Receive: !01

Set address 01 high alarm +2.5000, return success.

Related Command:
@AAEAT (Sec. 2.23), @AARH (Sec. 2.28)
Related Topic:
High/Low Alarm (Sec. 3.6)

46

CB-7011/CB-7011D, CD-7018 User’s Manual

2.25 @AALO(Data)

Description: Set Low Alarm
Note: The command is for CB-7011/11D/11P/11PD only.
Syntax: @AADI[CHK](cr)

@ delimiter character
AA address of setting module (00 to FF)
LO command for setting high alarm value
(Data) high alarm values, data format is in engineer unit format.
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
A A address of response module(00 to FF)

Example:

Command: @01LO-2.5000 Receive: !01

Set address 01 low alarm -2.5000, return success.

Related Command:
@AAEAT (Sec. 2.23), @AARL (Sec. 2.29)
Related Topic:
High/Low Alarm (Sec. 3.6)

CB-701 1/CB-7011D, CB-7018 User’s Manual

47

2.26 @AADA

Description: Disable Alarm
Note: The command is for CB-7011/11D/1 1P/11PD only.
Syntax: @AADA[CHK](cr)

@ delimiter character
AA address of setting module (00 to FF)
DA command for disable alarm
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
A A address of response module(00 to FF)

Example:

Command: @01DA Receive: !01

Disable address 01 alarm, return success.

Related Command:
Sec. 2.23 @AAEAT
Related Topic:
Sec. 3.6 High/Low Alarm

48

CB-7011/CB-7011D, CD-7018 User’s Manual

2.27 @AACA

Description: Clear Latch Alarm
Note: The command is for CB-7011/11D/11P/11PD only.
Syntax: @AACA[CHK](cr)

@ delimiter character
AA address of setting module (00 to FF)
CA command for clear latch alarm
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
A A address of response module(00 to FF)

Example:

Command: @01DI Receive: !0120101

Read address 01 digital input, return latch alarm mode, low

alarm is set.

Command: @01CA Receive: !01

Clear address 01 latch alarm, return success.

Command: @01DI Receive: !0120001

Read address 01 digital input, return latch alarm mode, both

alarms are clear .

Related Command:
Sec. 2.21 @AADI, Sec. 2.23 @AAEAT, Sec. 2.26 @AADA
Related Topic:
Sec. 3.6 High/Low Alarm

CB-701 1/CB-7011D, CB-7018 User’s Manual

49

2.28 @AARH

Description: Read High Alarm
Note: The command is for CB-7011/11D/1 1P/11PD only.
Syntax: @AARH[CHK](cr)

@ delimiter character
AA address of reading module (00 to FF)
RH command for reading high alarm
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) high alarm value in engineer unit format.

Example:

Command: @01RH Receive: !01+2.5000

Read address 01 high alarm, return +2.5000.

Related Command:
Sec. 2.24 @AAHI(Data)
Related Topic:
Sec. 3.6 High/Low Alarm

50

CB-7011/CB-7011D, CD-7018 User’s Manual

2.29 @AARL

Description: Read Low Alarm
Note: The command is for CB-7011/11D/11P/11PD only.
Syntax: @AARH[CHK](cr)

@ delimiter character
AA address of reading module (00 to FF)
RL command for reading low alarm
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) low alarm value in engineer unit format.

Example:

Command: @01RL Receive: !01-2.5000

Read address 01 low alarm, return -2.5000.

Related Command:
Sec. 2.25 @AALO(Data)
Related Topic:
Sec. 3.6 High/Low Alarm

CB-701 1/CB-7011D, CB-7018 User’s Manual

51

2.30 @AARE

Description: Read Event Counter
Note: The command is for CB-7011/11D/1 1P/11PD only.
Syntax: @AARE[CHK](cr)

@ delimiter character
AA address of reading module (00 to FF)
RE command for reading event counter
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) event counter value, from 00000 to 65535.

Example:

Command: @01RE Receive: !0101234

Read address 01 event counter , return 1234.

Related Command:
Sec. 2.31 @AACE
Related Topic:
Sec. 3.4 Digital Input and Event Counter

52

CB-7011/CB-7011D, CD-7018 User’s Manual

2.31 @AACE

Description: Clear Event Counter
Note: The command is for CB-7011/11D/11P/11PD only.
Syntax: @AACE[CHK](cr)

@ delimiter character
AA address of setting module (00 to FF)
CE command for clear event counter
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
A A address of response module(00 to FF)

Example:

Command: @01RE Receive: !0101234

Read address 01 event counter, return 1234.

Command: @01CE Receive: !01

Clear address 01 event counter, return success.

Command: @01RE Receive: !0100000

Read address 01 event counter, return 0.

Related Command:
Sec. 2.30 @AARE
Related Topic:
Sec. 3.4 Digital Input and Event Counter

CB-701 1/CB-7011D, CB-7018 User’s Manual

53

2.32 ~**

Description: Host OK.

Host sends this command to all modules for broadcasting the
information “Host OK”.
Syntax: ~**[CHK](cr)
~ delimiter character
** command for all modules

Response: No response.
Example:

Command: ~** No response

Send Host OK to all modules

Related Command:
Sec. 33 ~AA0, Sec. 2.34 ~AA1, Sec. 2.35 ~AA2, Sec. 2.36
~AA3EVV, Sec. 2.37 ~AA4, Sec. 2.38 ~AA5PSS
Related Topic:
Sec. 3.2 Module Status, Sec. 3.3 Dual Watchdog Operation

54

CB-7011/CB-7011D, CD-7018 User’s Manual

2.33 ~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 get no

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

Example:

Command: ~010 Receive: !0104

Read address 02 module status, return 04, host watchdog

timeout flag is set.

Related Command:
Sec. 2.34 ~AA1
Related Topic:
Sec. 3.2 Module Status, Sec. 3.3 Dual Watchdog Operation

CB-701 1/CB-7011D, CB-7018 User’s Manual

55

2.34 ~AA1

Description: Reset Module Status
Syntax: ~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 error or communication error may get no re-

sponse.
! delimiter for valid command
? delimiter for invalid command
A A address of response module(00 to FF)

Example:

Command: ~010 Receive: !0104

Read address 01 module status, return 04, host watchdog

timeout flag is set.

Command: ~011 Receive: !01

Reset address 01 module status, return success.

Command: ~010 Receive: !0100

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

clear.

Related Command:
Sec. 2.32 ~**, Sec. 2.33 ~AA0
Related Topic:
Sec. 3.2 Module Status, Sec. 3.3 Dual Watchdog Operation

56

CB-7011/CB-7011D, CD-7018 User’s Manual

2.35 ~AA2

Description: Read Host W atchdog T imeout Interval
Syntax: ~AA2[CHK](cr)

~ delimiter character
AA address of reading module (00 to FF)
2 command for reading host watchdog timeout interval
Response: Valid Command: !AAVV[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)
VV timeout interval in HEX format, each count for

0.1 second, 01=0.1 second and FF=25.5 seconds

Example:

Command: ~012 Receive: !01FF

Read address 01 host watchdog timeout interval, return FF,

host watchdog timeout interval is 25.5 seconds.

Related Command:
Sec. 2.32 ~**, Sec. 2.36 ~AA3EVV
Related Topic:
Sec. 3.2 Module Status, Sec. 3.3 Dual Watchdog Operation

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2.36 ~AA3EVV

Description: Set Host W atchdog T imeout Interval
Syntax: ~AA3EVV[CHK](cr)

~ delimiter character
AA address of setting module (00 to FF)
3 command for set host watchdog timeout interval
E 1=Enable/0=Disable host watchdog
VV timeout value, 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

response.
! delimiter for valid command
? delimiter for invalid command
A A address of response module(00 to FF)

Example:

Command: ~013164 Receive: !01

Set address 01 enable host watchdog and timeout interval is

64 (10.0 seconds), return success.

Command: ~012 Receive: !0164

Read address 01 host watchdog timeout interval, return timeout

interval is 64 (10.0 seconds).

Related Command:
Sec. 2.32 ~**, Sec. 2.35 ~AA2
Related Topic:
Sec. 3.2 Module Status, Sec. 3.3 Dual Watchdog Operation

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2.37 ~AA4

Description: Read PowerOn Value and Safe Value
Note: The command is for CB-7011/11D/1 1P/11PD only
Syntax: ~AA4[CHK](cr)

~ delimiter character
AA address of reading module (00 to FF)
4 command for reading PowerOn Value and Safe Value
Response: Valid Command: !AAPPSS[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)
PP PowerOn Value, 00=DO0 off, DO1 off, 01=DO0 on,

DO1 off, 02=DO0 off, DO1 on, 03=DO0 on, DO1 on

SS Safe Value, data format is same as PP

Example:

Command: ~014 Receive: !010000

Read address 01 Power-On/Safe V alue, return Power-On Value

is DO0 off, DO1 of f, Safe Value is DO0 off, DO1 off.

Related Command:
Sec. 2.38 ~AA5PPSS
Related Topic:
Sec. 3.2 Module Status, Sec. 3.3 Dual Watchdog Operation

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2.38 ~AA5PPSS

Description: Set PowerOn Value and Safe Value.
Note: The command is for CB-7011/11D/1 1P/11PD only.
Syntax: ~AA5PPSS[CHK](cr)

~ delimiter character
AA address of setting module (00 to FF)
5 command for setting PowerOn Value and Safe Value
PP PowerOn Value, 00=DO0 off, DO1 off, 01=DO0 on,

DO1off, 02=DO0 off, DO1 on, 03=DO0 on, DO1 on

SS Safe Value, data format is same as PP
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
A A address of response module(00 to FF)

Example:

Command: ~0150003 Receive: !01

Set address 01 PowerOn Value is DO0 off, DO1 off, Safe

Value is DO0 on, DO1 on, return success.

Related Command:
Sec. 2.37 ~AA4
Related Topic:
Sec. 3.2 Module Status, Sec. 3.3 Dual Watchdog Operation

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

T o enable INIT mode, please follow these steps:
Step 1. Power-down the module.
Step 2. Connect the INIT* pin to the GND pin.
Step 3. Set Power on.
Step 4. Send command $002(cr) in 9600 bps to read the configura­tion stored in the module’s EEPROM.

Refer to “CB-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 Power-On V alue. The module may accept the host’ s
command to change the output value.

Host W atchdog Timeout will put all digital outputs to the
Safe Value. The host watchdog timeout flag is set, and the output

command will be ignored. The module’ s LED will go to flash and
user must reset the Module Status via command to restore normal
operation.

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61

3.3 Dual Watchdog Operation

Dual W atchdog = Module W atchdog + Host W atchdog

The Module W atchdog is a hardware reset circuit to moni­tor the module’ s operating status. While working in harsh or noisy
environment, the module may go down by the external noise signal.
The circuit may let the module continue to work and never halt.

The Host Watchdog is a software function to monitor the
host’ s operating status. Its purpose is to prevent the network/com­munication problem or a halted host from causing a dangerous
situation. While the timeout occurred, the module will place all out­puts to the safe state to prevent from unexpected problem of con­trolled target.

The CB-7000 module with Dual W atchdog makes the con­trol system more reliable and stable.

3.4 Digital Input and Event Counter

The digital input DI0 can work as event counter . The counter
increments when the input changes from high level to low level.
The counter has 16 bits and is useful for low speed counting at
frequencies lower than 50 Hz.

3.5 Digital Output

When the module powers-on, the host watchdog timeout
flag is checked first. If the status is set, the digital outputs (DO0
and DO1) of module are set to the Safe Value. If the flag is clear,
the digital outputs are set to the Power-On Value.

If the host watchdog timeout flag is set, the module will

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CB-7011/CB-7011D, CD-7018 User’s Manual

ignore the digital output command @AADO(Data).

3.6 High/Low Alarm

Some analog input modules, such as the CB-7011, are
equipped with a high/low alarm function. When the alarm function
is enabled, the digital output DO0 is the low alarm indicator, DO1
is the high alarm indicator, and the digital output command for chang­ing digital outputs DO0, DO1 is ignored. The alarm function is to
compare the analog input value with given high alarm value and
low alarm value. And there are two alarm types as follows:

Momentary alarm: the alarm status is cleared when the analog

input is not over the alarm value.

If Analog Input V alue > High Alarm, DO1 (High alarm) is on,

otherwise DO1 is off.

If Analog Input Value < Low Alarm, DO0 (Low alarm) is on,

otherwise DO0 is off.

Latch Alarm: the alarm is cleared only the user send com-

mand to clear.

If Analog Input Value > High Alarm, DO1(High alarm) is on,
else if Analog Input Value < Low Alarm, DO0(Low alarm) is

on.

3.7 Thermocouple Measurement

When two wires composed of dissimilar metal are joined
at one end and heated, the open circuit voltage is a function of the
junction temperature and the composition of the two metals. All
dissimilar metals exhibit this effect. The voltage is called Seebeck
voltage”. For small changes in temperature the Seebeck voltage is

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63

linearly proportional to temperature.

To measure the Seebeck voltage directly is not available
because we must first connect a voltmeter to the thermocouple, and
the voltmeter leads themselves create a new thermoelectric
(cold) junction. Therefore we need to eliminate the junction ther­moelectric to measure the correct Seebeck voltage, and this is called
“Cold Junction Compensation”.

For most thermocouples, the Seebeck voltage is 0V while
at 0°C. One simple way to cancel the junction voltage is to put the
junction into 0°C environment and the junction voltage is 0V. Nor­mally , this is not a good method for most applications. The typical
method is to measure the junction temperature with a thermistor,
and measure the junction voltage from the junction temperature.
Then we can get the Seebeck voltage from measured thermocouple
voltage and junction voltage, and we can calculate the temperature
from the Seebeck voltage.

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For Your Notes

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For Your Notes

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CB-7011/CB-7011D, CD-7018 User’s Manual

EC Declaration of Conformity

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

CB-7011/CB-7011D, Thermocouple Input Modules
CB-7018

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 relat­ing 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-701 1/CB-7011D, CB-7018 User’s Manual

67

Measurement Computing Corporation

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Suite 1008

Norton, Massachusetts 02766

[phone]

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E-mail: [e-mail]

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