W&T Web-IO Digital 4.0 User manual

Web-IO Digital 4.0
gvalid for:
#57733 Web-IO 4.0 Digital 4xIn/Out
#57736 Web-IO 4.0 Digital 16xIn/Out
Release 1.51 October 2021
Manual
Installation, Startup and Application

© 10/2021 by Wiesemann und Theis GmbH
Microsoft, MS-DOS, Windows, Winsock and Visual Basic
are registered trademarks of the Microsoft Corporation.
Subject to error and alteration:
Since it is posssible that we make mistakes, you mustn’t use any of our statements
without verication. Please, inform us of any error or misunderstanding you come
about, so we can identify and eliminate it as soon as possible.
Carry out your work on or with W&T products only to the extent that they are descri-
bed here and after you have completely read and understood the manual or guide.
We are not liable for unauthorized repairs or tampering. When in doubt, check rst
with us or with your dealer.

3
Inhalt
Content
1. Legal notices...................................................................... 5
Warning notice system ...................................................................................... 5
Qualied personnel ............................................................................................ 5
Disposal.............................................................................................................. 6
Symbols on the product ..................................................................................... 6
2. Safety notices .................................................................... 7
General notices .................................................................................................. 7
Intended use....................................................................................................... 7
Electrical safety.................................................................................................. 7
Batteries ............................................................................................................. 8
3. Quick Startup ................................................................... 11
Network connection......................................................................................... 11
Supply voltage.................................................................................................. 11
IP address assignment .................................................................................... 11
Function test .................................................................................................... 11
4. Product introduction ....................................................... 12
Hardware.......................................................................................................... 12
Network security .............................................................................................. 13
Access rights.................................................................................................... 13
Application and access possibilities................................................................ 14
Actions ............................................................................................................. 15
5. Installation and wiring...................................................... 16
Wiring #57733.................................................................................................. 17
Wiring #57736.................................................................................................. 22

4
Inhalt
Network connection......................................................................................... 24
6. Initial start-up .................................................................. 25
Assigning the IP address ................................................................................. 25
Changing the set IP parameters ...................................................................... 26
7. Basic settings................................................................... 27
Conguring Inputs and Outputs....................................................................... 27
Date / Time....................................................................................................... 28
Language / Info ................................................................................................ 28
Password ......................................................................................................... 28
Certicates....................................................................................................... 29
8. Basic applications............................................................ 30
Browser access ............................................................................................... 30
Sending email................................................................................................... 32
Box-to-Box........................................................................................................ 33
9. Integration into existing systems..................................... 34
MQTT................................................................................................................ 34
REST 36
OPC DA............................................................................................................. 40
OPC UA............................................................................................................. 41
SNMP ............................................................................................................... 43
Modbus-TCP .................................................................................................... 44
10. Actions ........................................................................... 47
Trigger .............................................................................................................. 47
Actions ............................................................................................................. 49
11. Access from own applications ...................................... 53
Access using TCP/IP sockets.......................................................................... 53
12. Appendix ........................................................................ 56
Alternatives for IP address assignment .......................................................... 56
Firmware update .............................................................................................. 57
Emergency access ........................................................................................... 58
12. Technical data................................................................ 59

5
Rechtliche Hinweise
1. Legal notices
Warning notice system
This manual contains notices that must be observed for your personal safety as
well as to prevent damage to equipment. The notices are emphasized using a war-
ning sign. Depending on the hazard level the warning notices are shown in decrea-
sing severity as follows.
1DANGER
Indicates a hazard which results in death or severe injury if no appropriate preventi-
ve actions are taken.
1WARNING
Indicates a hazard which can result in death or severe injury if no appropriate pre-
ventive actions are taken.
1CAUTION
Indicates a hazard that can result in slight injury if no appropriate preventive
actions are taken.
1NOTE
Indicates a hazard which can result in equipment damage if no appropriate preven-
tive actions are taken.
If more than one hazard level pertains, the highest level of warning is always used.
If the warning sign is used in a warning notice to warn of personal injury, the same
warning notice may have an additional warning of equipment damage appended.
Qualied personnel
The product described in this manual may be installed and placed in operation only
by personnel who are qualied for the respective task.
The documentation associated with the respective task must be followed, especial-

6
Rechtliche Hinweise
ly the safety and warning notices contained therein.
Qualied personnel are dened as those who are qualied by their training and
experience to recognize risks when handling the described products and to avoid
possible hazards.
Disposal
Electronic equipment may not be disposed of with normal waste, but rather must be
brought to a proper electrical scrap processing facility.
Symbols on the product
Symbol Explanation
CE Mark
The product conforms to the requirements of
the relevant EU Directives.
WEEE Mark
The product may not be disposed of with nor-
mal waste, but rather in accordance with local
disposal regulations for electrical scrap.

7
Sicherheitshinweise
2. Safety notices
General notices
This manual is intended for the installer of the Web-IOs described in the manual and
must be read and understood before starting work. The devices are to be installed
and put in operation only by qualied personnel.
Intended use
1DANGER
The Digital Web-IOs manufactured by Wiesemann & Theis are network remote swit-
ches with integrated web server and digital in- and outputs. They are used as a re-
mote switching and monitoring unit, accessible via TCP/IP-Ethernet using various
web and network protocols in accordance with the present manual.
Non-intended use is any other use or any modication to the described devices.
Electrical safety
1WARNING
Before beginning any kind of work on the Web-IO you must completely disconnect it
from power. Be sure that the device cannot be inadvertently turned on again!
The Web-IO may be used only in enclosed and dry rooms.
The device should not be subjected to high ambient temperatures or direct sunlight,
and it should be kept away from heat sources. Please observe the limits with res-
pect to maximum ambient temperature.
Ventilation openings must be clear of any obstacles. A distance of 10-15 cm be-
tween the Web-IO and nearby heat sources must be maintained.
Input voltage and output currents must not exceed the rated values in the specica-
tion.
When installing be sure that no stray wires stick out through the ventilation slit of

8
Sicherheitshinweise
the Web-IO into the housing. Ensure that no individual wires stand off from leads,
that the lead is fully contained in the clamp and that the screws are tightly fastened.
Fully tighten screws on unused terminals.
The power supply used for the Web-IOs must absolutely ensure safe isolation of
the low-voltage side from the supply mains according to EN60950-1 and must have
“LPS“ designation.
EMC
1NOTE
Only shielded network cables may be used for connecting the Web-IOs to the net-
work.
In this case the Web-IOs meet the noise immunity limits for industrial applications
and the stricter emissions limits for households and small businesses. Therefore
there are no EMC-related limitations with respect to the usability of the devices in
such environments.
The complete Declarations of Conformity for the devices described in the manual can
be found on the corresponding Internet page at the W&T homepage: http://www.wut.
de.
Batteries
The Web-IO Digital 4.0 contains a 3V lithium-manganese dioxide button battery type
CR1632 for backing up the internal clock. This battery has an expected lifetime of
10 years and must be replaced only by a battery of the same type.
When using the Web-IO Digital 4.0 in a network environment with access to a time
server, the battery is not essential for correct function of the device and can be
removed.
1CAUTION
The battery may be removed or replaced by an electrotechnical specialist, only.
To remove the battery, open the housing as follows:

9
Sicherheitshinweise
#57733
Rasthaken
Batterie
#57736
Batterie
Rasthaken
Use a pointed object to press on the latching hooks on the side of the housing and
at the same time pull the bottom of the housing out of the top shell.
Then remove the stack of PCBs downwards from the housing.
The buffer battery for the clock module is located in a holder on the upper PCB.
After removing/replacing the battery, reassemble in reverse order.

10
Sicherheitshinweise
Batteries and rechargeables must not be disposed of with normal waste, recycling
of used batteries and rechargeables is required by law. Used batteries may contain
harmful substances which can damage the environment or your health if not
disposed of properly.
Batteries also contain important raw materials such iron, zinc, manganese or nickel
and are recycled.