WAGO 750-556 User manual

Fieldbus Independent
I/O Modules
2 AO DC ±10 V
750-556
Manual
Version 1.0.2

ii • General
WAGO-I/O-SYSTEM 750
I/O Modules
Copyright ©2006 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: [email protected]
Web: http://www.wago.com
Technical Support
Phone: [phone] – 5 55
Fax: + 49 (0) 571/8 87 – 85 55
E-Mail: [email protected]
Every conceivable measure has been taken to ensure the correctness and com-
pleteness of this documentation. However, as errors can never be fully ex-
cluded, we would appreciate any information or ideas at any time.
E-Mail: [email protected]
We wish to point out that the software and hardware terms as well as the tra-
demarks of companies used and/or mentioned in the present manual are gener-
ally trademark or patent protected.

Content • iii
WAGO-I/O-SYSTEM 750
I/O Modules
Content
1Important 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
2I/O Modules ................................................................................................. 7
2.1 Analog Output Modules ...........................................................................7
2.1.1 750-556 [2 AO DC ±10 V]..................................................................7
2.1.1.1 View................................................................................................7
2.1.1.2 Variations........................................................................................7
2.1.1.3 Description......................................................................................8
2.1.1.4 Display Elements ............................................................................9
2.1.1.5 Schematic Diagram.........................................................................9
2.1.1.6 Technical Data ..............................................................................10
2.1.1.7 Process Image ...............................................................................11
2.1.1.7.1 Standard Format .......................................................................12
2.1.1.7.2 Special Formats........................................................................12

4 • Important Comments
Legal Principles
WAGO-I/O-SYSTEM 750
I/O Modules
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 con-
tained therein. Any use of this manual which infringes the copyright provi-
sions stipulated herein, is not permitted. Reproduction, translation and elec-
tronic and photo-technical archiving and amendments require the written con-
sent 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 modi-
fications 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 special-
ists having qualifications in PLC programming, electrical specialists or per-
sons instructed by electrical specialists who are also familiar with the valid
standards. WAGO Kontakttechnik GmbH & Co. KG declines all liability re-
sulting 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 per-
mitted within the framework of the possibilities documented in the manuals.
All other changes to the hardware and/or software and the non-conforming use
of the components entail the exclusion of liability on part of WAGO Kon-
takttechnik 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.

Important Comments • 5
Symbols
WAGO-I/O-SYSTEM 750
I/O Modules
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

6 • Important Comments
Safety Notes
WAGO-I/O-SYSTEM 750
I/O Modules
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 insu-
lating properties. Belonging to this group of materials is: e.g. aerosols, sili-
cones, triglycerides (found in some hand creams).
If it cannot be ruled out that these materials appear in the component envi-
ronment, 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.
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 envi-
ronment (persons, workplace and packing) is well grounded. Avoid touching
conductive components, e.g. gold contacts.
1.5 Scope
This manual describes the Analog Output Module 750-556
2 AO DC ±10 V 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.

750-556 [2 AO DC ±10 V] • 7
View
WAGO-I/O-SYSTEM 750
I/O Modules
2 I/O Modules
2.1 Analog Output Modules
2.1.1 750-556 [2 AO DC ±10 V]
2-Channel Analog Output Module ±10 V
2.1.1.1 View
A1 A2
13 14
C
D
B
A
MM
SS
750-556
AO 2
Data contacts
Function AO 2
Function AO 1
AO 1
Shield
(screen)
Shield
(screen)
Common
(ground)
Common
(ground)
Fig. 2.1.1-1: 2-Channel Analog Output Module 750-556 g055600e
2.1.1.2 Variations
Item-No.: Designation Description
750-556 2 AO (±10 V) 2-Channel Analog Output Module , ±10 V
750-556/000-200 2 AO (±10 V)
with Siemens
(S5-FB 251)
2-Channel Analog Output Module , ±10 V,
adapted data format for S5-control systems
with the use of function block FB 251

8 • 750-556 [2 AO DC ±10 V]
Description
WAGO-I/O-SYSTEM 750
I/O Modules
2.1.1.3 Description
The analog output module 750-556 and its variation create a standardized sig-
nal of ±10 V.
The module has two short circuit protected output channels and enables the di-
rect wiring of two 2-conductor actuators to AO 1 and ground or AO 2 and
ground. The signals are transmitted via AO 1 or AO 2.
The channels have a common ground and a shield (screen) (S). The shield
(screen) is directly connected to the DIN rail. A capacitive connection is made
automatically when snapped onto the DIN rail.
The input signal is electrically isolated and will be transmitted with a resolu-
tion of 12 bits.
The operational readiness and the trouble-free internal data bus communica-
tion of the channels are indicated via a function LED.
Any configuration of the output modules is possible when designing the field-
bus node. Grouping of module types is not necessary.
The voltage supply is done via the internal system voltage.
Attention
This module has no power contacts. For field supply to downstream I/O mod-
ules, a supply module will be needed.
The analog output module 750-556 and its variations can be used with all cou-
plers/controllers of the WAGO-I/O-SYSTEM 750 (except for the economy
types 750-320, -323, -324 and -327).

750-556 [2 AO DC ±10 V] • 9
Display Elements
WAGO-I/O-SYSTEM 750
I/O Modules
2.1.1.4 Display Elements
LED Channel Designation State Function
off
No operational readiness or the
internal data bus communication
is interrupted
A
green 1 Function
AO 1
on Operational readiness and trou-
ble-free operational readiness
off
No operational readiness or the
internal data bus communication
is interrupted
13 14
C
D
B
A
CA
Fig. 2.1.1-2: Display
Elements g055202x C
green 2 Function
AO 2
on Operational readiness and trou-
ble-free operational readiness
2.1.1.5 Schematic Diagram
Shield
(screen)
AO 1 AO 2 AO
10nF
270pF
A
DLogic
Function
Shield
(screen)
Common
(ground)
Common
(ground)
1
2
3
4
5
6
7
8
750-556
Fig. 2.1.1-3: 2-Channel Analog Output Module 750-556 g055601e

10 • 750-556 [2 AO DC ±10 V]
Technical Data
WAGO-I/O-SYSTEM 750
I/O Modules
2.1.1.6 Technical Data
Module Specific Data
Number of outputs 2
Current consumption typ. (internal) 65 mA
Voltage supply via system voltage DC/DC
Signal voltage ±10 V
Load impedance > 5 kΩ
Linearity ±10 mV
Resolution 12 Bit
Conversion time approx. 2 ms
Output filter settle time typ. 300 µs
Measuring error 25°C <±0.1 % of the full scale value
Temperature coefficient <±0.01 % /K of the full scale value
Isolation 500 V (Field/System)
Bit width 2 x 16 bits data
2 x 8 bits control/status(option)
Dimensions (mm) W x H x L 12 x 64* x 100
* from upper edge of 35 DIN rail
Weight ca. 55 g
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
(Ship building)
acc. to Germanischer Lloyd (97)
EMC-Emission of interference
(Ship building)
acc. to Germanischer Lloyd (97)

750-556 [2 AO DC ±10 V] • 11
Process Image
WAGO-I/O-SYSTEM 750
I/O Modules
Approvals (cf. Chapter 2.2 of the Coupler/Controller Manual)
CULUS (UL508)
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
NKK (Nippon Kaiji Kyokai)
RINA (Registro Italiano Navale) (only for 750-556)
CULUS (UL1604) Class I Div2 ABCD T4A
KEMA II 3 G EEx nA II T4
Conformity Marking
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 !Sys-
tem Description
2.1.1.7 Process Image
The analog output module 750-556 and its variations transmit 16-bit data and
8 status bits per channel.
The digitalized output value is transmitted in a data word (16 bits) as output
byte 0 (low) and output byte 1 (high) into the process image of the coupler /
controller.
This value is represented with a 12 bit resolution on bit B3 ... B14.
The three least significant bits (B0 ... B2) are not parsed.
Some fieldbus systems can process status information by means of a status
byte.
As the returned status byte of this output module is always zero, it will not be
parsed.

12 • 750-556 [2 AO DC ±10 V]
Process Image
WAGO-I/O-SYSTEM 750
I/O Modules
2.1.1.7.1 Standard Format
For the standard module 750-556, the numerical values ranging from 0x8001
to 0x7FFF are scaled on the output voltage ranging from -10 V to +10 V.
Process values of Module 750-556
Numerical valueOutput voltage
binary
Status-
byte
±10 V Output value
hex. dec.
hex.
-10,0 '1000.0000.0000.0001' 0x8001 -
32767
0x00
-7,5 '1010.0000.0000.0000' 0xA000 -
24576
0x00
-5,0 '1100.0000.0000.0000' 0xC000 -
16384
0x00
-2,5 '1110.0000.0000.0000' 0xE000 -8192 0x00
0,0 '0000.0000.0000.0000' 0x0000 0 0x00
2,5 '0010.0000.0000.0000' 0x2000 8192 0x00
5,0 '0100.0000.0000.0000' 0x4000 16384 0x00
7,5 '0110.0000.0000.0000' 0x6000 24576 0x00
10,0 '0111.1111.1111.1111' 0x7FFF 32767 0x00
2.1.1.7.2 Special Formats
To digitalize the output value, the variation 750-550/000-200 uses a data for-
mat adapted for the S5 control systems using FB 251.
For this variation, the numerical values ranging from 0xC000 to 0x4000 are
scaled on the output voltage ranging from -10 V to +10 V.
Process values of module 750-556/000-200
Numerical valueOutput voltage
binary
Status-
byte
±10 V Output value
hex. dec.
hex.
-10,0 '1100.0000.0000.0000' 0xC000 -16384 0x00
-7,5 '1101.0000.0000.0000' 0xD000 -12288 0x00
-5,0 '1110.0000.0000.0000' 0xE000 -8192 0x00
-2,5 '1111.0000.0000.0000' 0xF000 -4096 0x00
0,0 '0000.0000.0000.0000' 0x0000 0 0x00
2,5 '0001.0000.0000.0000' 0x1000 4096 0x00
5,0 '0010.0000.0000.0000' 0x2000 8192 0x00
7,5 '0011.1000.0000.0000' 0x3000 12288 0x00
10,0 '0100.0000.0000.0000' 0x4000 16384 0x00

750-556 [2 AO DC ±10 V] • 13
Process Image
WAGO-I/O-SYSTEM 750
I/O Modules

WAGO Kontakttechnik GmbH & Co. KG
Postfach 2880 • D-32385 Minden
Hansastraße 27 • D-32423 Minden
Telefon: [phone] – 0
Telefax: 05 71/8 87 – 1 69
E-Mail: [email protected]
Internet: http://www.wago.com