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1. Siemens
Touch
Panel
(PXM40)

2. Compact design with low built-in depth, for mounting in control panel doors
High-resolution TFT display with 262 k colors Resolution: 1280 x 800 pixels (wide screen)
Capacitive touch screen
Dimmable LED background lighting
Intuitive operation and monitoring of multiple plants or Desigo PX automation stations
Optimized for local operation of the Desigo building automation and control system
LED to indicate alarms while the screen is off
Connection via Ethernet RJ45
Commissioning wizard
Remote access via VNC to the touch panel
No additional mounting materials required
Use

3. Use
1.The Desigo PXM40 touch panel is
designed for control panel mounting.
2.It is used together with web
interface PXG3.
3.W100 and adapts the standard
technology used for the web
interface for local operation of the
technical installations in the building.
4.The touch panel allows for intuitive
operation of multiple Desigo PX
automation stations and allows for
permanent monitoring of technical
installations in a building.
5.TCP/IP is used for communications.

4. Settings
Number of languages There are 16 languages supported. English is the default operating
language.
Auto logout Automatic logout can be set at intervals of 5…60 minutes.
Keypad The keypad is designed for two different language groups:
Standard (for Latin-based languages and the so-called QWERTY layout), and
Russian (for Cyrillic languages; just Russian at this time).
Keypad functionality The interaction with the keypad is roughly the same as commercially
available products such as smart phone, tablets, etc.
Alarm LED Pending alarms are indicated by an LED on the top right of the touch panel.

5. Settings
Function Description
Brightness Sets the screen's relative brightness.
Language Operating language of the touch panel.
Time format 24 or 12-hour (am/pm) display.
Date format 8 variants are available.
Keypad Keypad layout: Standard QWERTY or Russian.
Auto logout Time to logout: 5, 10, 15, 30, 45, 60 minutes.
Screensaver Idle time: 15 minutes, default = On.

6. Settings
VNC
Remote access to display (Computer ® Touch Panel), switches to Off after logging off,
default = Off.
Warning :
Activate this function only when needed. The function must be disabled for all other times.
SSH FW version ≤V01.15.30.497 only.
This function is intended only for internal service, and is thus available only to Siemens
employees.
Factory setting: Off
Warning:
Activate this function only when needed. The function must be disabled for all other times.

7. Technical data
Power supply Operating voltage AC 24 V ±20% (SELV) or
AC 24 V class 2 (US) or
DC 24 V ±15% (SELV) or
DC 24 V class 2 (US)
Frequency 50/60 Hz
Max. power consumption
• At AC 24 V
• At DC 24 V
• Max. 14 VA
• Max. 7 W *
No load on the USB interfaces
Screw terminals for wire diameters up to
External supply line protection (EU)
Fuse slow max. 10 A
Touchpad Type Projective capacitive
Input/output • Ethernet
• USB
• Serial
• 1x 10/100/1000 Mbit
• 1x USB 2.0 host, 1x USB device
• 1x RS232

8. Technical data
Display • Size
• Resolution
• Type
• Number of colors
• Viewing angle H/V
• Background lighting
• 10.1 inch
• 1280 x 800
• TFT
• 262k
• Typically 170°/170°
• LED, dimmable
Backup Settings Saved permanently to flash memory
Protection data • Protection class
• Housing protection
• Degree of pollution
• III as per EN 60950-1 (if installed correctly)
Front: IP54 Rear: IP20
• As per EN 60529 (if installed correctly)
• 2 as per EN 60950-1
Weight Unit complete with
accessories
1.3 kg
Housing material • Front
• Rear
• Aluminum, colorless anodized and glass
• Steel zinc plated

9. Technical data
Ambient
conditions
Operation
EN 60721-3-3
Transport
EN 60721-3-2
Storage
EN 60721-3-1
Climatic conditions Class 3K5 Class 2K3 Class 1K3
Temperature 0…+50 °C -25…+70 °C -20…+65 °C
Humidity < 95% r.h.
(non-condensing)
< 95% r.h. < 95% r.h.
Mechanical
conditions
Class 3M2 Class 2M2 Class 1M2

10. Commissioning notes
Prerequisites A properly set up web interface (PXG3.W100) is prerequisite to commissioning
the touch panel.
Setting wizard • A setting wizard is available for the network/server settings of the touch
panel.
• For more information, please see the Installation and commissioning
instructions Desigo Touch and Web CM111029en
Firmware download • The firmware can be downloaded via micro USB interface.
• For more information on firmware download, see the Installation and
commissioning instructions Desigo Touch and Web CM111029en.

11. Document conventions
Terminology Used…
 Web interface
 Touch panel
…for
 PXG3.W100
 Desigo touch panel,
PXM40 and PXM50
Illustrations  Illustration excerpt are not labeled accordingly.
 Illustrations generally are not titled or subtitled.
Wait…  If an action (e.g. loading a page) takes longer, the
animated "Busy Indicator" (wait symbol) is
displayed in the middle of the working pane
Tap, click  Tapping an element on the touch panel is referred
to as "tap". An instruction may read: "Tap
"Logout".
Tapping hand  Illustrates tapping a button or function element.

12. IT security
The Desigo Touch and Web products implement the latest standard communications technologies. For this
reason, compliance with IT security standards of the related installation environments as well as generally valid
standards of the Desigo system is a must. See also CM110663.
₹Note in particular the following issues with regard to Desigo Touch and Web:
Use only strong passwords (password length, use of special characters, etc.). This applies to user login for plant
operation during daily operation as well as to system operation as part of commissioning or service work.
Do not use standard passwords. The password must always be unique and specific to the project.
HTTPS must be used as standard communications protocol between the operator clients (Desigo Touchpanels,
standard web browser) and the web inter- face PXG3.W100. HTTPS is entered in the URL to connect to the web
inter- face PXG3.W100:
Desigo Touchpanels should not communicate via the Internet with the PXG3.W100 web interface.
The PXG3.W100 web interface should be accessible only via VPN over Inter- net.

13. Touch panel commissioning – Step-by-step
1. If not yet done: Connect the
Desigo touch panel to the
corresponding network plug using
the network cable (RJ45).
2. If not yet done: Connect to power.
3. Wait for the touch panel to start.
4. Select the language.
5. Save with Next
---> This process may take a few seconds; the Language page is
displayed
---> 16 languages are integrated. English is the default
language.
---> The page “Network Settings – IPv4” opens.
Note
Two ways are available for the following step:
1.Automatically using DHCP (self-explanatory).
2.Manual via the alphanumeric keypad.

14. Touch panel commissioning – Step-by-step
1. Tap Manual.
2. Complete all fields.
3. Finish with Next. (---> The server
connection page opens)
4. Enter IP address or URL of the
PXG3.W100.(This ought to be defined in
XWP prior to this action.)
5. Complete with Finish.(The process
may take a few seconds. The page with the
location defini- tion opens.)
6.Enter both Location and
Password.(This is not the user password, and
it must also not match the user
Password)

15. Touch panel commissioning – Step-by-step
7. Tap OK to finish.
(This concludes “Binding”. The main view for the
desired project is dis- played within a few seconds.)
8. Tap a blank area anywhere on
screen.(This opens the login page.)
9.Enter both user name and password.

16. Touch panel commissioning – Step-by-step
10. Tap OK.
(---> The touch panel checks the entry. After
successful login:
• The main functions and information as per
the user rights are displayed.
• The user name is displayed in the status
bar.)

17. Touch panel commissioning – Step-by-step
Login error Users immediately receive the following feedback for
incorrect or improperly entered login information:
Procedure
in case of
login error
You can select between two options:
• Retry or
• Tap Cancel to return to the home page.
Switch user Proceed as follows to switch user (e.g. shift work):
Tap Logout.
• This logs out the current user.
• Log in the new user (as per Login, see above).
Options This completes the technical part of commissioning.
Different settings are available, however, for user-
friendly operation of the touch panel. They can be
edited after login. To do this, see a detailed
description in the operating instructions.

18. Desigo Touch and Web – Application examples
PXM40/PXM50 Standard Clients
no Yes/no Mobile use
yes no Integration in control panel door
yes no Full screen – no user access to operating
system.
yes no LED for alarm indication.
yes no Permanent alarm monitoring - reliable 7/24
operation.
no yes Temporary plant operation via WAN/LAN.
yes no System compatibility, product life cycle.
Security-related settings : Desigo Touch and Web uses cookies. As a result, the security
settings on the related client may require redefinition.
If a standard client is connected to PXG3.W100, and if no user action occurs during 3 hours
on this client, the location definition of the standard client is disconnected automatically.

19. Firmware updates
General
With the devices PXG3.W100 (all versions) and PXM40 / PXM50 (>1.15.30.497)
the firmware is updated in XWP using SSA-DNT; see E-learning module "Com-
missioning the web server".
To ensure operation of the devices on the most current firmware, the current
firmware must be downloaded.
PXM 40 / PXM50 ≤1.15.30.497
1. As a rule, the firmware of any PXM40/50s (referred to as “device”) can be updated
using the FWDT (Firmware Download Tool).
2. This is particularly important if a FW update is not possible via DNT (Discovery and
Node Setup Tool) due to technical issues.
3. In devices with FW version ≤1.15.30.497, updating the firmware via FWDT is
mandatory, to be able to update the device using DNT in the future

20. Connections
COM24 V AC/DC LAN RJ45
Micro-USB-Device
USB-Host Reset
Maintenance
The PXM40 touch panel does not require maintenance.

21. Touch panel wiring
Reference point for ground
When grounding the reference point (system neutral or symbol^), note the
following:
 As a rule, both grounding (PELV) as well as non- grounding (SELV) the
reference point ^ of AC 24 V operating voltage is allowed. Local laws
must be adhered to.
 To prevent earth loops, systems with PELV must be connected to
ground in the system at one point only, normally the transformer un-
less indicated differently..
Grounding as
per PELV
Grounding as
per SELV
T Safety transformer AC 230 V / AC 24 V as per EN 61 558
K Terminal block to star-like distribution of AC 24 V and ┴
N1 PXG3.W100
N2 PXM40/50
F1 Extra-low voltage fuse for max. power consumption at AC
24 V, depending on line cross-section

22. Touch panel wiring
1. Reset
2. USB 2.0 ports (1 standard, 1 micro)
3. Serial ports (15-pin DIN sub)
4. RJ45 LAN connection
5. 24 V AC/DC terminal strip(3rd terminal is not
connected).
6. Earth connection (bolted)

23. Mechanical design
10.1" touch panel Front 10.1" touch panel Rear

24. Dimensions