WAGO I/O-SYSTEM 750 User manual

Fieldbus Independent
I/O Modules
Serial Interface RS 485
750-653 (/xxx-xxx)
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: [phone] – 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
trademarks of companies used and/or mentioned in the present manual are
generally 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 Special Modules ....................................................................................... 7
2.1.1 750-653 (/xxx-xxx) [Serial Interface RS 485]..................................... 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 Functional description................................................................... 11
2.1.1.8 Process Image ...............................................................................12
2.1.1.9 Data transfer..................................................................................14
2.1.1.9.1 Example....................................................................................15
2.1.1.10 Adjustable Variation 750-653/003-000 ........................................ 18

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
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 non-
conforming 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.

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
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.
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.
1.5 Scope
This manual describes the Digital Input Module 750-653 (/xxx-xxx) Serial
Interface RS 485 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.

750-653 (/xxx-xxx) [Serial Interface RS 485] •7
View
WAGO-I/O-SYSTEM 750
I/O Modules
2 I/O Modules
2.1 Special Modules
2.1.1 750-653 (/xxx-xxx) [Serial Interface RS 485]
2.1.1.1 View
TxD
RxD
MM
SS
13 14
C
D
B
A
750-653
TxD
RxD
__
__
TxD
Data contacts
RxD
RxD
Common
(ground)
Shield
(screen)
TxD
Function
TxD
Shield
(screen)
RxD
Common
(ground)
___
___
Fig. 2.1.1-1: Serial Interface 750-653 g065300e
2.1.1.2 Variations
Item-No. Designation Description
750-653 RS 485/ 9600/ N/ 8/ 1 Baud rate: 9600 baud;
Parity: none; data bits: 8, stop bits: 1
750-653/000-001 RS 485/ 9600/ E/ 7/ 2 Baud rate: 9600 baud;
Parity: Even; data bits: 7, stop bits: 2
750-653/000-002 RS 485/ 9600/ E/ 8/ 1 Baud rate: 9600 baud;
Parity: even; data bits: 8, stop bits: 1
750-653/000-006 RS 485/ 19200/ N/ 8/ 1/
5 byte
Baud rate: 19200 baud;
Parity: none; data bits: 8,
stopbits: 1, user data: 5 byte
750-653/000-007 RS 485/ 2400/ N/ 8/ 1 Baud rate: 2400 baud;
Parity: none; data bits: 8, stop bits: 1
750-653/003-000 RS 485 adjustable Data transmission and handshake
parameterizable with
WAGO-I/O-CHECK 2

8 •750-653 (/xxx-xxx) [Serial Interface RS 485]
Description
WAGO-I/O-SYSTEM 750
I/O Modules
2.1.1.3 Description
This interface allows the connection of any device which is equipped with a
RS 485 serial interface.
The wiring to the communication partner is made by the connections TxD,
/TxD, RxD, /RxD and ground.
The screen connection is connected directly to the mounting rail.
The interface works standard-conformal according to DIN 66259.
The connected device may communicate over the fieldbus coupler/-controller
with the control unit directly. The active communication channel works
independently of the higher-level fieldbus system and allows full duplex
operation up to 19200 baud.
Three green LEDs signal readiness for operation and troublefree internal bus
communication as well as the condition of the signal transmission.
The RS 485 interface guarantees high interference immunity because of the
electrically isolated signals.
Any configuration of the specialty 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 serial interface module 750-653 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).
This description is valid for hardware and software version XXXX4108.... and
higher. The version is specified in the manufacturing number, which is part of
the lateral marking of the module.

750-653 (/xxx-xxx) [Serial Interface RS 485] •9
Display Elements
WAGO-I/O-SYSTEM 750
I/O Modules
2.1.1.4 Display Elements
LED Channel State Function
off No operational readiness or the
internal data bus communication is
interrupted
A
green
Function
on Operational readiness and trouble-
free internal data bus
communication
off 1) Signal transmission TxD runningB
green
TxD
on No signal transmission TxD
off 1) Signal transmission RxD runningD
green
RxD
on No signal transmission RxD
Fig. 2.1.1-2: Display
Elements g065002x
1) The pulses are so short that the off status cannot or only hardly be
recognized with the eyes.
2.1.1.5 Schematic Diagram
Shield
(screen)
TxD TxD
RxD RxD
TxD
TxD
TxD
RxD
RxD
RxD
Function
Logic
RS 485
Shield
(screen)
0V 0V
___
___
___
___
1
2
3
4
5
6
7
8
750-653
Fig. 2.1.1-3: Serial Interface 750-653 g065301e

10 •750-653 (/xxx-xxx) [Serial Interface RS 485]
Technical Data
WAGO-I/O-SYSTEM 750
I/O Modules
2.1.1.6 Technical Data
Module Specific Data
Transmission channel 1 TxD / 1 RxD, full/halfduplex
Baud rate 1200 ... 19200 baud
Bit transfer via differential signals
Transmission length ca. 1000 m twisted pair
Buffer 120 byte in / 16 byte out
Current consumption (internal) 65 mA
Voltage supply via system voltage DC /DC
Isolation 500 V (System/Supply)
Bit width 1 x 40 bits data
1 x 8 bits control/status
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)
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)
CULUS (UL1604) Class I Div2 ABCD T4A
KEMA II 3 G EEx nA II T4
Conformity Marking