WAGO 750-469, 750-469/000-001, 750-469/000-002, 750-469/000-006, 750-469/000-008 User guide

Fieldbus Independent
I/O Modules

2 AI Thermocouple
750-469 (/xxx-xxx)

Manual

Version 1.0.4

ii • General

Copyright  2007 by WAGO Kontakttechnik GmbH & Co. KG
All rights reserved.

WAGO Kontakttechnik GmbH & Co. KG

Hansastraße 27
D-32423 Minden

Phone: [phone] – 0
Fax: [phone] – 1 69

E-Mail: [e-mail]

Web: http://www.wago.com

Technical Support

Phone: [phone] – 5 55
Fax: [phone] – 85 55

E-Mail: [e-mail]

Every conceivable measure has been taken to ensure the correctness and com­pleteness of this documentation. However, as errors can never be fully ex­cluded, we would appreciate any information or ideas at any time.

E-Mail: [e-mail]
We wish to point out that the software and hardware terms as well as the

trademarks of companies used and/or mentioned in the present manual are
generally trademark or patent protected.

WAGO-I/O-SYSTEM 750
I/O Modules

Content • iii

Content

1 Important Comments .................................................................................4

1.1 Legal Principles........................................................................................ 4

1.1.1 Copyright ............................................................................................. 4

1.1.2 Personnel Qualification .......................................................................4

1.1.3 Intended Use........................................................................................ 4

1.2 Symbols.................................................................................................... 5

1.3 Number Notation...................................................................................... 5

1.4 Safety Notes ............................................................................................. 6

1.5 Scope ........................................................................................................6

2 I/O Modules .................................................................................................7

2.1 Analog Input Modules..............................................................................7

2.1.1 750-469 (/xxx-xxx) [2 AI Thermocouple]........................................... 7

2.1.1.1 View................................................................................................ 7

2.1.1.2 Variations........................................................................................ 8

2.1.1.3 Description...................................................................................... 9

2.1.1.4 Display Elements .......................................................................... 10

2.1.1.5 Schematic Diagram....................................................................... 10

2.1.1.6 Technical Data .............................................................................. 11

2.1.1.7 Process Image ...............................................................................12

2.1.1.7.1 I/O Modules for Thermocouples.............................................. 13

2.1.1.7.1.1 Standard Data Format..........................................................14

2.1.1.7.1.2 Data Format with Status Information for S5 – FB 250 in

Data Word ...........................................................................17

2.1.1.7.2 I/O Modules for Voltage Measuring (mV) ..............................19

2.1.1.8 Adjustable 750-469/003-000 Variation ........................................20

2.1.1.9 Examples of Connection ............................................................... 22

WAGO-I/O-SYSTEM 750
I/O Modules

4 • Important Comments
Legal Principles

1 Important Comments

To ensure fast installation and start-up of the units described in this manual,
we strongly recommend that the following information and explanations are
carefully read and abided by.

1.1 Legal Principles

1.1.1 Copyright

This manual is copyrighted, together with all figures and illustrations
contained therein. Any use of this manual which infringes the copyright
provisions stipulated herein, is not permitted. Reproduction, translation and
electronic and photo-technical archiving and amendments require the written
consent of WAGO Kontakttechnik GmbH & Co. KG. Non-observance will
entail the right of claims for damages.

WAGO Kontakttechnik GmbH & Co. KG reserves the right to perform
modifications allowed by technical progress. In case of grant of a patent or
legal protection of utility patents all rights are reserved by WAGO
Kontakttechnik GmbH & Co. KG. Products of other manufacturers are always
named without referring to patent rights. The existence of such rights can
therefore not be ruled out.

1.1.2 Personnel Qualification

The use of the product detailed in this manual is exclusively geared to
specialists having qualifications in PLC programming, electrical specialists or
persons instructed by electrical specialists who are also familiar with the valid
standards. WAGO Kontakttechnik GmbH & Co. KG declines all liability
resulting from improper action and damage to WAGO products and third party
products due to non-observance of the information contained in this manual.

1.1.3 Intended Use

For each individual application, the components supplied are to work with a
dedicated hardware and software configuration. Modifications are only
permitted within the framework of the possibilities documented in the
manuals. All other changes to the hardware and/or software and the non­conforming use of the components entail the exclusion of liability on part of
WAGO Kontakttechnik GmbH & Co. KG.

Please direct any requirements pertaining to a modified and/or new hardware
or software configuration directly to WAGO Kontakttechnik GmbH & Co.
KG.

WAGO-I/O-SYSTEM 750
I/O Modules

Important Comments • 5 Symbols

1.2 Symbols

Danger
Always abide by this information to protect persons from injury.

Warning
Always abide by this information to prevent damage to the device.

Attention
Marginal conditions must always be observed to ensure smooth operation.

ESD (Electrostatic Discharge)
Warning of damage to the components by electrostatic discharge. Observe
the precautionary measure for handling components at risk.

Note
Routines or advice for efficient use of the device and software optimization.

More information
References on additional literature, manuals, data sheets and INTERNET
pages

1.3 Number Notation

Number Code Example Note

Decimal 100 normal notation
Hexadecimal 0x64 C notation
Binary '100'

'0110.0100'

Within ',
Nibble separated with dots

WAGO-I/O-SYSTEM 750
I/O Modules

6 • Important Comments
Safety Notes

1.4 Safety Notes

Warning
Switch off the system prior to working on bus modules!

In the event of deformed contacts, the module in question is to be replaced, as
its functionality can no longer be ensured on a long-term basis.

The components are not resistant against materials having seeping and
insulating properties. Belonging to this group of materials is: e.g. aerosols,
silicones, triglycerides (found in some hand creams).

If it cannot be ruled out that these materials appear in the component
environment, then additional measures are to be taken:

- installation of the components into an appropriate enclosure

- handling of the components only with clean tools and materials.

Attention
Cleaning of soiled contacts may only be done with ethyl alcohol and leather
cloths. Thereby, the ESD information is to be regarded.

1.5 Scope

Do not use any contact spray. The spray may impair the functioning of the
contact area.

The WAGO-I/O-SYSTEM 750 and its components are an open system. It
must only be assembled in housings, cabinets or in electrical operation
rooms. Access must only be given via a key or tool to authorized qualified
personnel.

The relevant valid and applicable standards and guidelines concerning the
installation of switch boxes are to be observed.

ESD (Electrostatic Discharge)
The modules are equipped with electronic components that may be destroyed
by electrostatic discharge. When handling the modules, ensure that the
environment (persons, workplace and packing) is well grounded. Avoid
touching conductive components, e.g. gold contacts.

This manual describes the Analog Input Module 750-469 (/xxx-xxx)
2 AI Thermocouple of the modular WAGO-I/O-SYSTEM 750.

Handling, assembly and start-up are described in the manual of the Fieldbus
Coupler. Therefore this documentation is valid only in the connection with the
appropriate manual.

WAGO-I/O-SYSTEM 750
I/O Modules

750-469 (/xxx-xxx) [2 AI Thermocouple] • 7 View

2 I/O Modules

2.1 Analog Input Modules

2.1.1 750-469 (/xxx-xxx) [2 AI Thermocouple]

2-Channel Analog Input Module for Thermocouples

2.1.1.1 View

13 14

Function AI 1

Error AI 1

+TC 1

A

B

+TC +TC

-TC -TC

C

D

Function AI 2
Error AI 2

Data contacts

+TC 2

-TC 1

MM

Common

(ground)

SS

Shield

(screen)

750-469

-TC 2

Common
(ground)

Shield
(screen)

Fig. 2.1.1-1: 2- Channel Analog Input Module 750-469 g046900e

WAGO-I/O-SYSTEM 750
I/O Modules

8 • 750-469 (/xxx-xxx) [2 AI Thermocouple] Variations

2.1.1.2 Variations

Item-No. Designation Description

Thermocouples

750-469 2 AI Thermocouple/K/

-100 °C ... +1370 °C/
Diagn.

750-469/000-001 2 AI Thermocouple/S/

-50 °C ... +1700 °C/
Diagn.

750-469/000-002 2 AI Thermocouple/T/

-100 °C ... +400 °C/
Diagn.

750-469/000-006 2 AI Thermocouple/J/

-100 °C ... +1200 °C/
Diagn.

750-469/000-008 2 AI Thermocouple/E/

-100 °C ... +1000 °C/
Diagn.

750-469/000-012 2 AI Thermocouple/L/

-100 °C ... +900 °C/
Diagn.

750-469/000-200 2 AI Thermocouple/K/

-100 °C ... +1370 °C/
Diagn./ Status in­formations for S5-FB250

2-Channel Analog Input Module ,
Thermocouple Type K, Diagn.
Measuring range: -100 °C ... +1370 °C

2-Channel Analog Input Module ,
Thermocouple Type S, Diagn.
Measuring range: -50 °C ... +1700 °C

2-Channel Analog Input Module ,
Thermocouple Type T, Diagn.
Measuring range: -100 °C ... +400 °C

2-Channel Analog Input Module ,
Thermocouple Type J, Diagn.
Measuring range: -100 °C ... +1200 °C

2-Channel Analog Input Module ,
Thermocouple Type E, Diagn.
Measuring range: -100 °C ... +1000 °C

2-Channel Analog Input Module ,
Thermocouple Type L, Diagn.
Measuring range: -100 °C ... +900 °C

2-Channel Analog Input Module ,
Thermocouple Type K, Diagn.
Measuring range: -100 °C ... +1370 °C
With status information for S5-FB250

750-469/000-206 2 AI Thermocouple/J/

-100 °C ... +1200 °C/
Diagn./ Status in­formation for S5-FB250

Voltage measuring

750-469/000-003 2 AI Voltage measuring,

±120 mV/ Diagn.

Operating mode configurable with WAGO-I/O-CHECK

750-469/003-000 2 AI Thermocouple

Adjustable

2-Channel Analog Input Module ,
Thermocouple Type J, Diagn.
Measuring range: -100 °C ... +1200 °C
With status information for S5-FB250

2-Channel Analog Input Module ,
Voltage measuring, Diagn.
Measuring range: ±120 mV

2-Channel Analog Input Module ,
Adjustable, Diagn.
Pre-adjustment: Thermocouple Type K,
Measuring range: -100 °C ... +1370 °C

WAGO-I/O-SYSTEM 750
I/O Modules

750-469 (/xxx-xxx) [2 AI Thermocouple] • 9 Description

2.1.1.3 Description

The 750-469 analog input module and its 750-469/xxx-xxx variations allow
thermocouples be measured in the field. It can also be used to measure
voltages (mV).
Depending on the operating mode, the voltage value is converted to a
temperature or directly send out by the module. A microprocessor within the
module is used for converting and linearizing the measured voltage value into
a numeric value proportional to the temperature of the selected thermocouple.
The operating mode of the 750-469/003-000 variation can be set by
parameterization using the WAGO-I/O-CHECK 2 start-up and diagnostic
tool (Item No.: 759-302). The default setting is thermocouple of type K.
The operating mode of the 750-469 basic module described in this manual is
for a type K thermocouple.
The analog module has two input channels allowing the direct connection of
two thermocouples.
For example, two thermocouples can be connected either to +TC1 and -TC1 or
to +TC2 and -TC2.
The shield (screen) is directly connected to the DIN rail. A capacitive
connection is made automatically when snapped onto the DIN rail.

An optocoupler is used for electrical isolation between the bus and the field
side.

The operational readiness and trouble-free internal data bus communication of
the channels are indicated via a green function LED. Broken wire, overrange
or underflow of the measuring range is indicated via a red Error LED.

Any configuration of the input modules is possible when designing the
fieldbus node. Grouping of module types is not necessary.

Attention

This module has no power contacts. For field supply to downstream I/O
modules, a supply module will be needed.

The analog input module 750-469 and its variations can be used with all
couplers/controllers of the WAGO-I/O-SYSTEM 750 (except for the economy
types 750-320, -323, -324 and -327).

WAGO-I/O-SYSTEM 750
I/O Modules

10 • 750-469 (/xxx-xxx) [2 AI Thermocouple]
Display Elements

2.1.1.4 Display Elements

LED Channel State Function

No operational readiness or the internal data bus

off

A
green

communication is interrupted

Operational readiness and trouble-free internal data

on

bus communication

B

13 14

A

A
B

C

B

D

red

C
D

Fig. 2.1.1-2:
Display Elements

g045202x

C
green

D
red

2.1.1.5 Schematic Diagram

1

off Normal operation

750-469,
750-469/000-001,

-002, -006, -008,

on

Overrange/underflow of the
admissible measuring range,
broken wire

-012, -200 ,-206

750-469/000-003 Broken wire

No operational readiness or the internal data bus

off

communication is interrupted

Operational readiness and trouble-free internal data

on

bus communication

2

off Normal operation

750-469,
750-469/000-001,

-002, -006, -008,

on

Overrange/underflow of the
admissible measuring range,
broken wire

-012, -200, -206

750-469/000-003 Broken wire

5

+TC1 +TC2

-TC1

Common

(ground)

Shield

(screen)

1

2

3

4

750-469

+TC

20nF

270pF

270pF

J

Comp

A

D

LogicMUX

Error

Function

6

-TC2

7

8

-TC

Common

(ground)

Shield

(screen)

Fig. 2.1.1-3: 2-Channel Analog Input Module 750-469 g046901d

WAGO-I/O-SYSTEM 750
I/O Modules

750-469 (/xxx-xxx) [2 AI Thermocouple] • 11 Technical Data

2.1.1.6 Technical Data

Module Specific Data

Number of inputs 2
Voltage supply via system voltage DC /DC
Current consumption
Sensor Types

(the free configurable variation supports all
listed sensor types)

Cold junction compensation at each pair of terminal blocks
Resolution (over whole range) 0.1 °C
Conversion time 320 ms (both channels)
Measuring error

Voltage input

-

25°C

- Cold junction compensation

Temperature coefficient

Internal resistance

Isolation 500 V (System/Supply)
Bit width 2 x 16 bits data

Dimensions (mm) W x H x L 12 x 64* x 100

Weight ca. 55 g

(internal) 65 mA

max.

Type K; -100 °C ... +1370 °C (factory preset),
optionally orderable variants for
Type J, B, E, N, R, S, T, U, L

<± 6 K
<± 2 K
<± 4 K

<± 0.2 K/ K

1 MΩ

2 x 8 bits control/status (option)

* from upper edge of 35 DIN rail

Standards and Regulations (cf. Chapter 2.2 of the Coupler/Controller Manual)

EMC-Immunity to interference (CE) acc. to EN 50082-2 (96)
EMC-Emission of interference (CE) acc. to EN 50081-1 (93)
EMC-Immunity to interference

acc. to Germanischer Lloyd (97)

(Ship building)
EMC-Emission of interference

acc. to Germanischer Lloyd (97)

(Ship building)

WAGO-I/O-SYSTEM 750
I/O Modules

12 • 750-469 (/xxx-xxx) [2 AI Thermocouple]
Process Image

Approvals (cf. Chapter 2.2 of the Coupler/Controller Manual)

(UL508)

CULUS

ABS (American Bureau of Shipping)

BV (Bureau Veritas)

DNV (Det Norske Veritas) Cl. B

GL (Germanischer Lloyd) Cat. A, B, C, D

KR (Korean Register of Shipping)

LR (Lloyd's Register) Env. 1, 2, 3, 4

More Information
Detailed references to the approvals are listed in the document "Overview
Approvals WAGO-I/O-SYSTEM 750", which you can find on the CD ROM
ELECTRONICC Tools and Docs (Item-No.: 0888-0412)
or in the internet under:

www.wago.com ! Documentation ! WAGO-I/O-SYSTEM 750 !

System Description

2.1.1.7 Process Image

NKK (Nippon Kaiji Kyokai)

RINA (Registro Italiano Navale)

(UL1604) Class I Div2 ABCD T4A

CULUS

KEMA II 3 G EEx nA II T4

Conformity Marking

Some fieldbus systems can process input channel status information by means
of a status byte.
This status byte can be displayed via the starting tool WAGO-I/O-CHECK 2.
However, processing via the coupler / controller is optional, which means that
accessing or parsing the status information depends on the fieldbus system.

Attention

The representation of the process data of some I/O modules or their variations
in the process image depends on the fieldbus coupler/-controller used. Please
take this information as well as the particular design of the respective
control/status bytes from the section "Fieldbus Specific Design of the Process
Data" included in the description concerning the process image of the
corresponding coupler/controller.

WAGO-I/O-SYSTEM 750
I/O Modules

750-469 (/xxx-xxx) [2 AI Thermocouple] • 13
Process Image

2.1.1.7.1 I/O Modules for Thermocouples

Thermocouples

750-469 Thermocouple Type K/ -100 °C ... +1370 °C/ Diagn.

750-469/000-001 Thermocouple Type S/ -50 °C ... +1700 °C/ Diagn.

750-469/000-002 Thermocouple Type T/ -100 °C ... +400 °C/ Diagn.

750-469/000-006 Thermocouple Type J/ -100 °C ... +1200 °C/ Diagn.

750-469/000-008 Thermocouple Type E/ -100 °C ... +1000 °C/ Diagn.

750-469/000-012 Thermocouple Type L/ -100 °C ... +900 °C/ Diagn.

750-469/000-200 Thermocouple Type K/ -100 °C ... +1370 °C/ Diagn. /

With status information

750-469/000-206 Thermocouple Type J/ -100 °C ... +1200 °C/ Diagn. /

With status information

WAGO-I/O-SYSTEM 750
I/O Modules

14 • 750-469 (/xxx-xxx) [2 AI Thermocouple]
Process Image

2.1.1.7.1.1 Standard Data Format

For the 750-469 module and its variations with standard data format, the
temperature values of the sensors are represented with a resolution of 1 digit
per 0.1 °C within a word (16 bits). Thus, 0 °C corresponds to the numeric
value 0x0000 and 100 °C to 0x03E8 (dec. 1000).

750-469, Type K, Broken wire diagn.

Temperature

°C binary hex. dec. hex. AI 1, 2

<-100.0 '1111.1100.0001.1000' 0xFC18 -1000 0x41 on

-100.0 '1111.1100.0001.1000' 0xFC18 -1000 0x00 off

0.0 '0000.0000.0000.0000' 0x0000 0 0x00 off

100.0 '0000.0011.1110.1000' 0x03E8 1000 0x00 off

200.0 '0000.0111.1101.0000' 0x07D0 2000 0x00 off

300.0 '0000.1011.1011.1000' 0x0BB8 3000 0x00 off

400.0 '0000.1111.1010.0000' 0x0FA0 4000 0x00 off

500.0 '0001.0011.1000.1000' 0x1388 5000 0x00 off

1000.0 '0010.0111.0001.0000' 0x2710 10000 0x00 off

1200.0 '0010.1110.1110.0000' 0x2EE0 12000 0x00 off

1300.0 '0011.0010.1100.1000' 0x32C8 13000 0x00 off

1370.0 '0011.0101.1000.0100' 0x3584 13700 0x00 off

>ca.1370.0 '0011.0101.1000.0100' >0x3584 >13700 0x42 on

Broken wire '0111.1111.1111.1111' 0x7FFF 32767 0x42 on

1)

Temperature values below 0 °C are represented in two’s complement binary form.

Numerical value 1)

Status-

byte

LED

Error

750-469/000-001, Type S, Broken wire diagn.

Temperature

°C binary hex. dec. hex. AI 1, 2

<-50.0 '1111.1110.0000.1100' 0xFE0C -500 0x41 on

-50.0 '1111.1110.0000.1100' 0xFE0C -500 0x41 off

0.0 '0000.0000.0000.0000' 0x0000 0 0x00 off

100.0 '0000.0011.1110.1000' 0x03E8 1000 0x00 off

200.0 '0000.0111.1101.0000' 0x07D0 2000 0x00 off

300.0 '0000.1011.1011.1000' 0x0BB8 3000 0x00 off

400.0 '0000.1111.1010.0000' 0x0FA0 4000 0x00 off

500.0 '0001.0011.1000.1000' 0x1388 5000 0x00 off

1000.0 '0010.0111.0001.0000' 0x2710 10000 0x00 off

1500.0 '0011.1010.1001.1000' 0x3A98 15000 0x00 off

1700.0 '0100.0010.0110.1000' 0x4268 17000 0x00 off

>1700.0 '0100.0010.0110.1000' >0x4268 >17000 0x42 on

Broken wire '0111.1111.1111.1111' 0x7FFF 32767 0x42 on

1)

Temperature values below 0 °C are represented in two’s complement binary form.

Numerical value 1)

Status-

byte

LED

Error

WAGO-I/O-SYSTEM 750
I/O Modules

750-469 (/xxx-xxx) [2 AI Thermocouple] • 15
Process Image

750-469/000-002, Type T, Broken wire diagn.

Temperature

Numerical value 1)

Status-

byte

LED

Error

°C binary hex. dec. hex. AI 1, 2

<ca.-100.1 '1111.1100.0001.0111' 0xFC17 -1001 0x41 on

-100.0 '1111.1100.0001.1000' 0xFC18 -1000 0x00 off

-50.0 '1111.1110.0000.1100' 0xFE0C -500 0x00 off

0.0 '0000.0000.0000.0000' 0x0000 0 0x00 off

50.0 '0000.0001.1111.0100' 0x01F4 500 0x00 off

100.0 '0000.0011.1110.1000' 0x03E8 1000 0x00 off

150.0 '0000.0101.1101.1100' 0x05DC 1500 0x00 off

200.0 '0000.0111.1101.0000' 0x07D0 2000 0x00 off

250.0 '0000.1001.1100.0100' 0x09C4 2500 0x00 off

300.0 '0000.1011.1011.1000' 0x0BB8 3000 0x00 off

350.0 '0000.1101.1010.1100' 0x0DAC 3500 0x00 off

400.0 '0000.1111.1010.0000' 0x0FA0 4000 0x42 off

>400.0 '0000.1111.1010.0000' >0x0FA0 >4000 0x42 on

Broken wire '0111.1111.1111.1111' 0x7FFF 32767 0x42 on

1)

Temperature values below 0 °C are represented in two’s complement binary form.

750-469/000-006, Type J, Broken wire diagn.

Temperature

Numerical value 1)

Status-

byte

LED

Error

°C binary hex. dec. hex. AI 1, 2

<-100.0 '1111.1100.0001.1000' 0xFC18 -1000 0x41 on

-100.0 '1111.1100.0001.1000' 0xFC18 -1000 0x00 off

0.0 '0000.0000.0000.0000' 0x0000 0 0x00 off

100.0 '0000.0011.1110.1000' 0x03E8 1000 0x00 off

200.0 '0000.0111.1101.0000' 0x07D0 2000 0x00 off

300.0 '0000.1011.1011.1000' 0x0BB8 3000 0x00 off

400.0 '0000.1111.1010.0000' 0x0FA0 4000 0x00 off

500.0 '0001.0011.1000.1000' 0x1388 5000 0x00 off

1000.0 '0010.0111.0001.0000' 0x2710 10000 0x00 off

1200.0 '0010.1110.1110.0000' 0x2EE0 12000 0x00 off

>1200.0 '0010.1110.1110.0000' >0x2EE0 >12000 0x42 on

Broken wire '0111.1111.1111.1111' 0x7FFF 32767 0x42 on

1)

Temperature values below 0 °C are represented in two’s complement binary form.

WAGO-I/O-SYSTEM 750
I/O Modules

16 • 750-469 (/xxx-xxx) [2 AI Thermocouple]
Process Image

750-469/000-008, Type E, Broken wire diagn.

Temperature

Numerical value 1)

Status-

byte

LED

Error

°C binary hex. dec. hex. AI 1, 2

<-100.0 '1111.1100.0001.1000' 0xFC18 -1000 0x41 on

-100.0 '1111.1100.0001.1000' 0xFC18 -1000 0x00 off

0.0 '0000.0000.0000.0000' 0x0000 0 0x00 off

100.0 '0000.0011.1110.1000' 0x03E8 1000 0x00 off

200.0 '0000.0111.1101.0000' 0x07D0 2000 0x00 off

300.0 '0000.1011.1011.1000' 0x0BB8 3000 0x00 off

400.0 '0000.1111.1010.0000' 0x0FA0 4000 0x00 off

500.0 '0001.0011.1000.1000' 0x1388 5000 0x00 off

600.0 '0001.0111.0111.0000' 0x1770 6000 0x00 off

700.0 '0001.1011.0101.1000' 0x1B58 7000 0x00 off

900.0 '0010.0011.0010.1000' 0x2328 9000 0x00 off

999.0 '0010.0111.0000.0110' 0x2706 9990 0x00 off

>999.0 '0010.0111.0000.0110' >0x2706 >9990 0x42 on

Broken wire '0111.1111.1111.1111' 0x7FFF 32767 0x42 on

1)

Temperature values below 0 °C are represented in two’s complement binary form.

750-469/000-012, Type L, Broken wire diagn.

Temperature

Numerical value 1)

Status-

byte

LED

Error

°C binary hex. dec. hex. AI 1, 2

<-100.0 '1111.1100.0001.1000' 0xFC18 -1000 0x41 on

-100.0 '1111.1100.0001.1000' 0xFC18 -1000 0x00 off

0.0 '0000.0000.0000.0000' 0x0000 0 0x00 off

100.0 '0000.0011.1110.1000' 0x03E8 1000 0x00 off

200.0 '0000.0111.1101.0000' 0x07D0 2000 0x00 off

300.0 '0000.1011.1011.1000' 0x0BB8 3000 0x00 off

400.0 '0000.1111.1010.0000' 0x0FA0 4000 0x00 off

500.0 '0001.0011.1000.1000' 0x1388 5000 0x00 off

600.0 '0001.0111.0111.0000' 0x1770 6000 0x00 off

700.0 '0001.1011.0101.1000' 0x1B58 7000 0x00 off

800.0 '0001.1111.0100.0000' 0x1F40 8000 0x00 off

900.0 '0010.0011.0010.1000' 0x2328 9000 0x00 off

>900.0 '0010.0011.0010.1000' >0x2328 >9000 0x42 on

Broken wire '0111.1111.1111.1111' 0x7FFF 32767 0x42 on

1)

Temperature values below 0 °C are represented in two’s complement binary form.

WAGO-I/O-SYSTEM 750
I/O Modules

750-469 (/xxx-xxx) [2 AI Thermocouple] • 17
Process Image

2.1.1.7.1.2 Data Format with Status Information for S5 – FB 250 in Data Word

For the 750-469/000-200 and 750-469/000-206 variations, the temperature
values of the sensors are represented with a resolution of 1 digit per 0.125 °C
within a word (16 bits). Thus, 0 °C corresponds to the numeric value 0x0000
and 100 °C to 0x0320 (dec. 800).
Diagnostic information is indicated in the 3 low bits.

750-469/000-200, Type K, Broken wire diagn.

Temperature Numerical value 2) with status information 1)

°C binary XFÜ 1) hex. dec. hex. AI 1, 2

<ca.-100.0 '1111.1100.1101.1 001' 0xFCD9 -807 0x41 on

-100.0 '1111.1100.1110.0 000' 0xFCE0 -800 0x00 off

-50.0 '1111.1110.0111.0 000' 0xFE70 -400 0x00 off

0.0 '0000.0000.0000.0 000' 0x0000 0 0x00 off

50.0 '0000.0001.1001.0 000' 0x0190 400 0x00 off

100.0 '0000.0011.0010.0 000' 0x0320 800 0x00 off

200.0 '0000.0110.0100.0 000' 0x0640 1600 0x00 off

400.0 '0000.1100.1000.0 000' 0x0C80 3200 0x00 off

600.0 '0001.0010.1100.0 000' 0x12C0 4800 0x00 off

800.0 '0001.1001.0000.0 000' 0x1900 6400 0x00 off

1000.0 '0001.1111.0100.0 000' 0x1F40 8000 0x00 off

1200.0 '0010.0101.1000.0 000' 0x2580 9600 0x00 off

1370.0 '0010.1010.1101.0 000' 0x2AD0 10960 0x00 off

>ca.1370.0 '0010.1010.1101.1 001' >0x2AD9 >10969 0x42 on

Broken wire '0111.1111.1111.1 010' 0x7FFA 32762 0x42 on

1)

Status information: X: not used, F: short-circuit, broken wire, Ü: overrange

2)

Temperature values below 0 °C are represented in two’s complement binary form.

Status-

byte

LED

Error

WAGO-I/O-SYSTEM 750
I/O Modules

18 • 750-469 (/xxx-xxx) [2 AI Thermocouple]
Process Image

750-469/000-206, Type J, Broken wire diagn.

Temperature

Numerical value 2) with status information 1)

Status-

byte

LED

Error

°C binary XFÜ 1) hex. dec. hex. AI 1, 2

<-100.0 '1111.1100.1110.0 001' 0xFCE1 -799 0x41 on

-100.0 '1111.1100.1110.0 000' 0xFCE0 -800 0x00 off

-50.0 '1111.1110.0111.0 000' 0xFE70 -400 0x00 off

0.0 '0000.0000.0000.0 000' 0x0000 0 0x00 off

50.0 '0000.0001.1001.0 000' 0x0190 400 0x00 off

100.0 '0000.0011.0010.0 000' 0x0320 800 0x00 off

200.0 '0000.0110.0100.0 000' 0x0640 1600 0x00 off

400.0 '0000.1100.1000.0 000' 0x0C80 3200 0x00 off

600.0 '0001.0010.1100.0 000' 0x12C0 4800 0x00 off

800.0 '0001.1001.0000.0 000' 0x1900 6400 0x00 off

1000.0 '0001.1111.0100.0 000' 0x1F40 8000 0x00 off

1100.0 '0010.0010.0110.0 000' 0x2260 8800 0x00 off

1200.0 '0010.0101.1000.0 000' 0x2580 9600 0x00 off

>1200.0 '0010.0101.1000.0 001' >0x2581 >9601 0x42 on

Broken wire '0111.1111.1111.1 010' 0x7FFA 32762 0x42 on

1)

Status information: X: not used, F: short-circuit, broken wire, Ü: overrange

2)

Temperature values below 0 °C are represented in two’s complement binary form.

WAGO-I/O-SYSTEM 750
I/O Modules

750-469 (/xxx-xxx) [2 AI Thermocouple] • 19
Process Image

2.1.1.7.2 I/O Modules for Voltage Measuring (mV)

Voltage measuring (mV)

750-469/000-003 Voltage measuring -120 ... 120 mV

When measuring the voltage, the input range from -120 mV to +120 mV is
mapped to a range of values between -18750 and +18750 with a resolution of

6.4 µV per digit.

Voltage values below 0 mV are represented in two’s complement binary form.

750-469/000-003, mV measuring ±120 mV

Voltage

mV binary hex. dec. hex. AI 1, 2

<-120.0 '1011.0110.1100.0010' 0xB6C2 -18750 0x00 off

-120.0 '1011.0110.1100.0010' 0xB6C2 -18750 0x00 off

-90.0 '1100.1001.0001.0010' 0xC912 -14062 0x00 off

-60.0 '1101.1011.0110.0001' 0xDB61 -9375 0x00 off

-30.0 '1110.1101.1011.0001' 0xEDB1 -4687 0x00 off

0.0 '0000.0000.0000.0000' 0x0000 0 0x00 off

30.0 '0001.0010.0101.0000' 0x1250 4688 0x00 off

60.0 '0010.0100.1001.1111' 0x249F 9375 0x00 off

90.0 '0011.0110.1110.1111' 0x36EF 14063 0x00 off

120.0 '0100.1001.0011.1110' 0x493E 18750 0x00 off

>120.0 '0100.1001.0011.1110' 0x493E 18750 0x00 off

Broken wire '0111.1111.1111.1111' 0x7FFF 32767 0x42 on

1)

Voltage values below 0 mV are represented in two’s complement binary form.

Numerical value 1)

Status-

byte

LED

Error

WAGO-I/O-SYSTEM 750
I/O Modules

20 • 750-469 (/xxx-xxx) [2 AI Thermocouple] Adjustable 750-469/003-000 Variation

2.1.1.8 Adjustable 750-469/003-000 Variation

The operating mode of the 750-469/003-000 variation can be parameterized
using the WAGO-I/O-CHECK 2 start-up and diagnostic tool (Item No.: 759-

302).
The default setting is type K thermocouple. In this operating mode, the
module has the same behavior and process values as the 750-469 basic
module.
The parameter dialog box of WAGO-I/O-CHECK 2 contains select boxes
that are used to set this module.

Select box Available settings

Sensor Type L: -100 °C ... 900 °C / K: -100 °C ... 1370 °C* /

J: -100 °C ... 1200 °C / E: -100 °C ... 1000 °C /
T: -100 °C ... 400 °C / N: -100 °C ... 1300 °C /
U: -25 °C ... 600 °C / B: 600 °C ... 1800 °C /
R: 0 °C ... 1700 °C / S: -50 °C ... 1700 °C /
± 30 mV / ± 60 mV / ±120 mV

Check Lower Range

Timer

Filter Constants 25 Hz – 640 ms / 50 Hz – 320 ms* / 100 Hz – 160 ms /

OFF If falling short of the measuring range, state bit 0 is not

set.

ON* If falling short of the measuring range, state bit 0 is set.

OFF* State bits are not mapped State-Bits

ON State bits are mapped to the lower three bits of the

output value:

Bit 0:overrun. Bit is set if measuring value runs out of
range.

Bit 1:error. Bit is set if the module detects an error in
internal functions or a shortcut at the input.

Bit 2: 0

OFF Watchdog timer not active Watchdog

ON* Watchdog timer active.

If no data are exchanged with the bus coupler for
100 ms, the green LEDs will turn off.

OFF* Two´s complement indication Amount Sign

ON Amount/Sign indication

200 Hz – 80 ms

OFF Broken wire observation not active Wire Break Detection

ON* Broken wire observation active

OFF* User scaling not active User Scaling

ON User scaling active

OFF WAGO scaling not active WAGO

Scaling

* default settings

WAGO-I/O-SYSTEM 750
I/O Modules

ON* WAGO scaling active

750-469 (/xxx-xxx) [2 AI Thermocouple] • 21
Adjustable 750-469/003-000 Variation

In WAGO-I/O-CHECK 2, the following input boxes allow you to set the
offset and gain values of the user and manufacturer scaling.

Input box ... Offset Gain

User Scaling ... 0x0000 0x0100

WAGO Scaling ... 0x0000 0x00A0

More information
You can find detailed information on parameterizing this module in the
WAGO-I/O-CHECK 2 manual or on the internet at www.wago.com..

WAGO-I/O-SYSTEM 750
I/O Modules

22 • 750-469 (/xxx-xxx) [2 AI Thermocouple] Examples of Connection

2.1.1.9 Examples of Connection

When connecting the thermocouples, good grounding practices must be
guaranteed between the machine and the sensors that are connected to the
module. Insufficient grounding can lead to common mode voltages, which
may distort the measuring result.

Due to the differential inputs, grounded and ungrounded thermocouples can be
connected in the following ways:

With grounded thermocouples, the common ground (M) can be connected to
the screen (S) using an external bridge so that common mode interferences can
be eliminated (see figure below).

+TC +TC

-TC

-TC

MM

SS

+TC

-TC

Fig. 2.1.1-4: Connection of grounded thermocouple g046204x

With ungrounded thermocouples, the common ground (M) can be connected
both to the TC input and to the screen (S), if required, using an external bridge
so that common mode interferences can be eliminated (see figure below).

+TC +TC

-TC

-TC

+TC

-TC

MM

SS

Fig. 2.1.1-5: Connection of ungrounded thermocouple g046905x

WAGO-I/O-SYSTEM 750
I/O Modules

750-469 (/xxx-xxx) [2 AI Thermocouple] • 23
Examples of Connection

WAGO-I/O-SYSTEM 750
I/O Modules

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