Siemens TX-I/O TXM1.8D Parts list manual

s
10562p001
TX-I/O™
Functions and operation
CM110561en_08
2018-10-25
Building Technologies

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Building Technologies Contents 2018-10-25
Contents
1Introduction .................................................................................................3
1.1 Revision history.............................................................................................3
1.2 Key target groups..........................................................................................3
1.3 Contents and validity of this manual .............................................................3
1.4Other applicable documents .........................................................................3
1.5 Before you start.............................................................................................4
1.6 TX-IO™ terms and definitions.......................................................................5
1.7 Overview of TX-I/O™ functions.....................................................................6
2Indicators and operator controls ...............................................................7
2.1 Overview (example: super universal module) ...............................................7
2.2 LED indicators...............................................................................................7
2.2.1 Module status LEDs ...................................................................7
2.2.2 I/O status LEDs ..........................................................................8
2.2.3 LCD display ................................................................................8
2.3 Local override................................................................................................9
2.3.1 Override buttons.........................................................................9
2.3.2 Override status LED .................................................................10
2.3.3 Priority ...............................................................................10
2.4 Address key ................................................................................................10
2.5 Function of the modules within the I/O subsystem......................................10
2.6 Fault messages...........................................................................................11
3Digital input functions ..............................................................................12
3.1 Status indication, maintained contact (BI NO, BI NC / D20, D20R) ...........12
3.2 Status indication, pulse contact (BI Pulse NO / D20S) ..............................14
3.3 Status indication, pulse contact (P-Bus-BIM) (D20S, realized with BI Static)15
3.4 Pushbutton input (BI Push NO, BI Push NC) ..............................................17
3.5 Multistate input maintained contact (MI Switch)..........................................20
3.6 Counting, pulse contact (CI Mech (10/25 Hz), CI El (100Hz) / C)...............22
4Analog input functions .............................................................................24
4.1 Measurement ..............................................................................................24
5Digital output functions............................................................................26
5.1 General information on the digital outputs ..................................................26
5.2 Maintained contact, switchover (BO Relay NO / NC 250V / Q250) ............29
5.3 Maintained contact, triac (BO Triac NO / NC) .............................................31
5.4 Maintained contact, bistable (BO Bistable NO / NC)...................................32
5.5 Pulse, on/off (BO Pulse On-Off / Q250-P250A-P) .....................................34
5.6Pulse (BO Pulse).........................................................................................36
5.7 Multistate maintained contact (MO Steps / Q-Mx) .....................................37
5.8 Multistate pulse (MO Pulse / Q250-Px) .......................................................40
5.9 Three-position control signal (BO 3-Pos Relay, BO-3-Pos Triac / Y250T)) 42
5.10 PWM Pulse width modulation (BO PWM, with triac) ...................................45
5.11 Blinds control (BO Blinds Relay) .................................................................47
6Analog output functions...........................................................................50
6.1 Proportional control signal...........................................................................50
7Default functions, disabling function......................................................52
7.1 Null function ................................................................................................52
7.2 Default functions .........................................................................................52
8Table of the parameters that can be set (example: Desigo / CFC) .......54

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1 Introduction
1.1 Revision history
10.2018, Rev. _08
•Section 2.6, 4.1 Correction for PT100 4-wire
08.2012, Rev. _07
•Detail information concerning MO Steps (multistate maintained contact)
02.2012, Rev. _06 •New modules with new functions
•New signal types designations (for a comparison between signal types of different
building automation and control systems see N8170)
•Described all functions of the TX-I/O modules, even if not supported by all building
automation and control systems
07.2010, Rev. _05 •New: Section 5.3 Maintained contact, bistable
•Section 5.1 Correction concerning fault response
•As a rule, all information depending on an individual building automation and
control system was moved to document CM110562 (support of signal types, TX-
I/O functions, resolution, etc.)
04.2009, Rev. _04 Section 1.5: Intranet address
Section 4.1: Note on open circuit detection with U10
01.2009, Rev. _03
Added Version 4 functions
01.2008, Rev. _02 Section 5.1: Note on 4QD-M2
Section 5.9: Note on synchronization
03.2007, Rev. _01
First edition
1.2 Key target groups
•Project managers
•Consulting engineers
•Service engineers
•Control panel manufacturers
1.3 Contents and validity of this manual
This manual describes all functions available in conjunction with the TX-I/O modules.
The description is limited to modules and field devices.
A specific building automation and control system may not support all functions
described hereafter.
Configuration and parameter-setting for each building automation and control system is
described in the respective online help.
1.4 Other applicable documents
Document
Number
[1]
TX-I/O™ Range overview data sheet
CM2N8170
[2]
TX-I/O™ Module data sheets
CM2N8172 ff
[3]
TX-I/O™ Power supply module / bus connection module data sheet
CM2N8183
[4]
P-bus bus Interface module data sheet
CM2N8180
[5]
Profinet BIM data sheet
CM2N8186
[6]
TX-I/O™ Engineering and installation guide
CM110562
[7]
Replacement of legacy modules
CM110563
STOP
Note!

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1.5 Before you start
This document may be duplicated and distributed only with the express permission of
Siemens, and may be passed only to authorized persons or companies with the
required technical knowledge.
These documents have been prepared with great care.
•The contents of all documents are checked at regular intervals.
•Any corrections necessary are included in subsequent versions.
•Documents are automatically amended as a consequence of modifications and
corrections to the products described.
Please ensure that you are aware of the latest revision date of the documentation.
If you find any lack of clarity while using this document, or if you have any criticisms or
suggestions, please contact the product manager in your nearest branch office.
The addresses of the Siemens regional companies are available at
www.buildingtechnologies.siemens.com.
Before using our products, it is important that you read the documents supplied with or
ordered at the same time as the products (equipment, applications, tools etc.) carefully
and in full.
We assume that persons using our products and documents are authorized and trained
appropriately and have the technical knowledge required to use our products as
intended.
More information on the products and applications is available:
•On the intranet (Siemens employees only) at
https://workspace.sbt.siemens.com/content/00001123/default.aspx
•From the Siemens branch office near you www.buildingtechnologies.siemens.com or
from your system supplier
•From the support team at headquarters fieldsupport-[email protected] if
there is no local point of contact
Siemens assumes no liability to the extent allowed under the law for any losses
resulting from a failure to comply with the aforementioned points or for the improper
compliance of the same.
Copyright notice
Quality assurance notice
Docume
nt use /
request to the reader

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1.6 TX-IO™ terms and definitions
Term
Description
Bus master
Device with supervisory function for an assigned set of I/O devices
(room automation station, automation station or bus interface module BIM)
Island bus
(TX-I/O module bus)
•Communications bus between the bus master (room automation station, automation
station or bus interface module) and the connected TX-I/O modules.
•Simultaneously carries the supply voltages for the modules and the field devices.
•The bus is created automatically through the interconnection of the TX-I/O modules.
Power supply module
"Active" power supply module that converts AC 24 V to DC 24 V. It supplies power for
operation of the module electronics and of DC 24 V and AC 24 V field devices)
Bus connection module
"Passive" module which passes communication signals and DC 24 V between multiple
I/O rows and/or serves as a connection point for additional AC / DC 12 … 24 V supply for
field devices.
Bus interface module (BIM)
Interface between the island bus and another bus. Acts as an island bus master.
P-Bus-BIM
Interface between a P-Bus automation station (Desigo, Unigyr, Visonik) and the island
bus.
PROFINET BIM
Interface between a PROFINET system and the island bus.
I/O island
All TX-I/O devices that are physically connected to the same island bus segment and
linked to the same bus master.
I/O row
One I/O island may consist of several rows of modules, each referred to as an "I/O row".
Each I/O row starts either with a bus master, or a power supply module, or a bus
connection module.
I/O module (assembly)
Device in which the physical signals from the field devices are converted into software
process values and vice versa.
An I/O module has a specific number of I/O points, determined by the module type.
The I/O module assemblies (normally called I/O modules) consist of a terminal base and
a plug-in module.
I/O point
Smallest addressable unit in an I/O module.
One or more I/O points (e.g. three-stage switching output) correspond to each data point
/channel on the room automation station / automation station.
Terminal
The cables of the field devices (peripheral devices) are connected to the terminals.
Plug-in module
The plug-in component with the module electronics that can be removed from the terminal
base.
Terminal base
The base unit for the TX-I/O module, which is mounted on the standard mounting rail and
to which the wiring is connected. The terminals have the function of control panel terminal
strips.
Address key
Accessory, which must be plugged into the plug-in module. The module address is
assigned via the mechanical coding of the key.
Reset key
Serves to reset the module function to the factory state.
Is inserted in place of the address key and can then be removed.
Addressing
From the perspective of the building automation and control system, the module address
consists of a module number (range 1…120) and an I/O point number (range 1…16).
I/O function
The function of an I/O point, which determines how it operates (e.g. signal input, 0…10 V
voltage output etc.).
Certain functions may use more than one I/O point (e.g. multi-stage switching output).
Process value
Software image of the physical value in the field device. Communicated on the bus.
Configuration
Defining the functionality of an I/O point by setting an I/O function and its parameters.
Any I/O function (existing in a module before the download) and its I/O points are disabled
first. For details refer to the TX I/O engineering documentation [8], [9]
Parameter setting
Changing the properties of an I/O function during configuration or at runtime.
For details refer to the TX I/O engineering documentation [8], [9]
Local override device,
Tool override,
"Functional test", etc.
Each BACS has its own tools.
Signal type
Designation of the signal of a physical input
TRA
Total Room Automation New: Desigo Room automation

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1.7 Overview of TX-I/O™ functions
The following functions are available in the TX-IO range:
Signal type (TRA)
Description
Number of
I/O
points
per
function
Max. number of functions per module
(Signal types
designation in
other systems: see
TX-I/O assortment
overview [1])
TXM1.8D
TXM1.16D
TXM1.8U
TXM1.8U-ML
TXM1.8X
TXM1.8X-ML
TXM1.8P
TXM1.6R
TXM1.6R
-M
TXM1.6RL
TXM1.8RB
TXM1.8T
Digital inputs
BI NO
Status indication, volt-free maintained
contact, N/O contact
1 8 16 8 8 8 8
BI NC
Status indication, volt-free maintained
contact, N/C contact
1 8 16 8 8 8 8
BI Pulse NO
Status indication,
volt-free pulsed contact, N/O
1
8
16
8
8
8
8
BI Push NO
BI Push NC
Button input single / dual, N/O
Button input single / dual, N/C
1/2
8/4
16/8
MI Switch
Multistate input
2...8
4...1
8...2
CI Mech (10/25Hz)
Count, volt-free pulse contact,
mechanical or electronic, normally open,
max. 10 Hz, with debouncing
max. 25 Hz, with debouncing
1
1
8 8
8
8
8
8
CI El (100Hz)
Electronic contact max. 100 Hz
1
8
8
8
8
Analog inputs
AI Pt100 4 Wire
Temperature Pt100 Ω(4-wire)
1
8
AI Pt100
Resistance 250 Ω (Pt 100)
1
8
AI 250 Ohm
Resistance 250 Ω
1
8
AI PT1K385
Temperature Pt 1000
1
8
8
8
8
8
AI PT1K375
Temperature Pt 1000
1
8
8
8
8
8
AI Ni1000 extended
Temperature LG-Ni 1000 up to 180 °C
1
8
8
8
8
8
AI Ni1000
Temperature LG-Ni 1000
1
8
8
8
8
8
AI 2500 Ohm
Resistance 2500 Ω
1
8
8
8
8
8
AI Pt1000
Resistance 2500 Ω (Pt 1000)
1
8
8
8
8
8
AI NTC10K
Temperature NTC 10 K
1
8
8
8
8
AI NTC100K
Temperature NTC 100 K
1
8
8
8
8
AI T1 (PTC)
Temperature T1 (PTC)
1
8
8
8
8
AI 0-10V
Voltage DC 0 .. 10V
1
8
8
8
8
AI 4-20mA
Current DC 4 .. 20 mA
1
8
8
AI 0-20mA
Current DC 0…20 mA
(for 25 mA see CM10563)
1
8
8
Digital outputs
BO Relay NO 250V
BO Relay NC 250V
Maintained contact, relay, changeover
switch, N/O, N/C contact
1
6
6
BO Triac NO
BO Triac NC
Maintained contact, triac, changeover
switch, N/O, N/C contact
1
8
BO Bistable NO
BO Bistable NC
Maintained contact, single-pole, bistable,
N/O, N/C contact
1
6
BO Pulse
Pulse
1
6
6
BO Pulse On-Off
On/off pulse (N/O and N/C contact)
2
3
3
MO Steps
Multistate-maintained contact
1…6
6…1
6…1
MO Pulse
Multistate pulse
2…6
3…1
3…1
BO 3-Pos Relay
Pulse, control signal, three-pos.output,
internal stroke algorithm (relay)
2
3
3
BO 3-PosTriac
Pulse, control signal, three-pos.output,
internal stroke algorithm (triac, AC 24 V)
2
4
BO PWM
Pulse width modulation, output AC 24 V
1
8
BO Blind Relay
Blinds control with 2/3 end switches
2/3
4/2
Analog outputs
AO 0-10V
Proportional control signal DC 0...10 V
1
8
8
8
8
AO 4-20mA
Proportional control signal DC 4…20 mA
1
4
4
Indication and local override
Local override
X
X
X
LCD display
X
X
Green I/O status LEDs
X
X
X
X
X
X
X
X
X
X
3-color I/O status LEDs (if supported by signal type)
X
X
The Y250T function (control signal, three-position output) uses 2 I/O points.
One TXM1.6R relay module can accommodate 3 actuators.
Example of a read
operation

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2 Indicators and operator controls
2.1 Overview (example: super universal module)
Connection terminals (No. 1 screwdriver for slotted or
recessed-head * screws)
with test point (1.8 ... 2 mm pins) and terminal number
Signal designation
Override status LEDs (yellow, types with local override only)
Address key and module status LED
LCD panel (not available on all types)
I/O point numbers
Override button (not available on all types)
I/O status LEDs (green – on certain types: three-color)
* Combined slotted / recessed-head screws from mid-2012
2.2 LED indicators
2.2.1 Module status LEDs
•The module status LED (green) is located on the I/O module under the transparent
address key. It shows the status of the module as a whole (as opposed to the
status of the I/O points):
Description
LED
Normal
ON
•Module OK, all functions working correctly
Inactive OFF •No module supply
•Plug-in module is in parked position
•Faulty module (hardware error)
Reminders / Errors
Various flashing patterns For details about errors please refer to the section
"Indication, operation, and diagnostics" in the
TX-I/O™ Engineering and installation guide [6].

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2.2.2 I/O status LEDs
•The status LEDs for individual I/O points (green or three colors 1) ) are situated on
the plug-in I/O module.
They show the status of the input or output.
•The LEDs are labeled with the I/O point number.
•The display depends on the type of input/output signal:
Description
LED (green) 1)
Field devices
Normal
OFF
N/O or N/C contact inactive, relay inactive
ON
N/O or N/C contact active, relay active
Brightness varies in proportion to
input value
Analog input
(current, voltage, temperature, resistance)
No display Analog input
(temperature; P-bus BIM: also resistance)
Brightness varies in proportion to
output value
Analog output
(current, voltage)
Reminders / Errors Several flashing patterns For details about errors please refer to the section
"Indication, operation, and diagnostics" in the
TX-I/O™ Engineering and installation guide [6].
1) On certain module types the LEDs are three-color. If the I/O function supports it, the
LED can display Alarm = Red and Service = Yellow, in addition to Normal = Green
(default).
2.2.3 LCD display
The following information is displayed for each I/O function:
– Signal type (lower part of display)
– Signal value (process value)
(graphics-supported display of pulse or analog value)
– Faults (incorrect operation, short-circuit, open sensor circuit, etc.)
Examples
?
VANi
10561D206
For details please refer to the section "Indication, operation, and diagnostics" in the
TX-I/O™ Engineering and installation guide [6].
Example: digital input
Signal type
Contact
I/O status LED
LCD
Process value
D20 N/O contact
Open
Closed
OFF
ON ("N/O contact active")
0
1
D20R *) N/C contact
Open
Closed
ON
OFF ("N/C contact active")
0
1
*) If D20R is not supported: use D20 with Polarity = Inverse.

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2.3 Local override
The local override and LCD facilities are available only on certain modules.
In principle, plug-in I/O modules with and without a local LCD panel/operator controls
are compatible and interchangeable.
Only outputs can be overwritten. Any attempt to overwrite an input results in an
error indication.
Local override also operates without a bus master, provided that the DC 24 V module
supply is present and the address key is plugged in.
With a change from automatic mode to local override, the last state is retained.
The bus master resumes control when the system is switched back to Auto.
The bus master is notified of local overrides and the associated values, and they are
permanently saved in the module (in CFC this is visible as follows:
StaFlg = Overridden, PrVal = set value).
Local override can be disabled for each single I/O function,
•All safety-related functions must be implemented with external solutions
•The local override must not be used for safety switch-off
•In compliance with the standard (ISO 16 484-2, Section 3.110), the module
executes all local overrides directly, without safety precautions or interlocks.

Full responsibility for all operations lies with the operator.

•For multistate outputs the outputs are locked electronically against each other.
2.3.1 Override buttons
Pressing an override button in the middle enables or disables the local override
(press until the override status LED changes to ON or OFF).
When local override is enabled:
•Pressing "+" increases an output value or activates the relay.
•Pressing "–" reduces an output value or disables the relay.
•Repeated or sustained pressure changes the value by several stages until the
function stops at the highest/lowest stage.
•The I/O status LED and LCD display change accordingly.
Pressing "+" or "–" when local override is disabled produces an "error" indication.
Warning

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2.3.2 Override status LED
The yellow "Override" LED indicates that local override is active:
Description
LED (yellow)
Normal (Automatic operation)
OFF
Local override active
ON
Multi-stage function •The function can be overridden on any I/O point associated to the
function
•LEDs of all the associated I/O points flash when operated
Reminders / Errors For details about errors please refer to the section "Indication,
operation, and diagnostics" in the TX-I/O™ Engineering and
installation guide [6].
2.3.3 Priority
Local override has first priority, followed by the various "functional tests" and (lastly)
operation via process value.
2.4 Address key
•Without an address key, the module is in a secure, inactive state
•With the address key inserted, the module has its full functionality
•The module address is mechanically encoded in the address key
•Based on to the address the module receives information via the bus indicating
which field devices are connected to this address, and which function is required for
the field devices.
•When replacing the plug-in I/O module, the address key must FIRST be swiveled
outward. This causes the load to be switched off and the values to be saved in the
bus master. The key remains plugged into the terminal base and can indicate the
required function to the new plug-in I/O module.
2.5 Function of the modules within the
I/O subsystem
0.5 seconds after switching on the module supply DC 24 V via bus the modules are
ready for communication.
Overall functionality of the I/O modules is based on the interaction of the following
elements:
– Module (hardware)
– Firmware (functions)
– Configuration and parameter-setting of the I/O functions (see [8], [9])
– Communication via the bus
– Measurement and control application in the room automation station / the automation
station
Start-up response of
the modules
I/O subsystem

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2.6 Fault messages
Quality value
Signal type
Normal
Invalid
No Out
put
(DC 24 V)
No Output
(AC 24 V)
Unreliable Other
Multistate Fault
Over Range
Under Range
Shorted Loop
Open Loop
No Sensor
Quality Value = part
of process value
BI NO / NC
x
x
BI Pulse NO / NC
x
x
BI Push NO / NC
x
x
CI Mech (10/25Hz), CI El (100Hz)
x
x
BO Relay NO / NC 250V
x
x
x
BO Triac NO / NC
x
x
x
BO Bistable NO / NC
x
x
x
x
BO Pulse On-Off
x
x
x
BO Pulse
x
x
x
MI Switch
x
x
x
MO Steps
x
x
x
x
MO Pulse
x
x
x
x
AI xxx
x
x
x
x
x
x
x
x
AO 0-10V, AO 4-20mA
x
x
x
x
x
BO 3-Pos Relay
x
x
x
BO 3-Pos Triac
x
x
x
BO Blind Relay
x
BO PWM
x
x
x
x
x
Quality value
Description
Normal
The function operates under normal conditions.
Invalid
The function is not operating. The process value is not valid.
No Output
(DC 24 V)
Reliable operation can't be guaranteed due to low DC 24 V operating voltage. This item will
only be sent if a switching operation has to be commanded.
No Output
(AC 24 V)
Reliable operation can't be guaranteed due to missing / failed AC voltage. This item will be
modified immediately when the AC voltage fails. The output will be switched off/inactive.
Unreliable Other
BO Bistable
AC / DC24 V is not present. The “PowerDownModeAC24V” becomes active.
Remark: Ifparameter [PowerDown ModeAC24V] is set to “Keep”, the
“PowerDownModeAC24V” will not become active and the fault will not be set.
With modules from Series D, however, it is compulsory to feed AC 24 V to bus conductor
" V " . The module always monitors this supply.
Simatic: It is also admissible to connect DC 24 V to bus conductor " V ".
Unreliable Other
AI Measure
– The voltage on G8 is below a certain level. The external device delivering the current may
be unreliable (for current measuring SignalTypes only).
– The voltage on AC / DC 24 V is below a certain level. The external device delivering the
voltage may be unreliable (for voltage measuring SignalTypes only).
Multistate Fault
Mapping error in multistate function.
Over Range
The sensor connected to the input is reading a value higher than the normal operating range.
Under Range
The sensor connected to the input is reading a value lower than the normal operating range.
Shorted Loop
The connection between the defined object and the physical device is providing a value
indicating a short circuit condition.
Open Loop The connection between the defined object and the physical device is providing a value
indicating an open circuit condition. Exception: Pt 4-wire, open circuit of a single conductor.
No Sensor
4...20 mA current measuring signal type measures no current.
Quality Value =
part of process
value
The status and quality information are coded in the process value (raw data).

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3 Digital input functions
The following functions for digital inputs are available in the TX-IO™ range:
Description
Signal type (TRA)
Signal type
Status indication, maintained contact N/O or N/C BI NO
BI NC
D20
Status indication, maintained contact N/C
(P-Bus-BIM only)
-- D20R
Status indication, pulse contact N/O
BI Pulse NO
D20S
Pushbutton input single / dual BI Push NO
BI Push NC
--
Counting, pulse contact N/O CI Mech (10/25Hz)
CI El (100Hz)
C
Multistate input
MI Switch
--
3.1 Status indication, maintained contact
(BI NO, BI NC / D20, D20R)
Acquisition of status signals from volt-free contacts and electronic switching devices
such as transistors and optocouplers.
The status signals can be triggered by
– Two-position transmitters such as thermostats and pressure switches etc.
– Status contacts of devices and auxiliary contacts of starters / switches
– Electronic switching devices such as transistors and optocouplers
– Pushbuttons
The function requires one I/O point.
LCD
Process value
I/O status LED
N/O Contact
BUS
10561Z154_01
Normal
Service
Alarm
LCD
Process value
I/O status LED
N/O, N/C Contact
BUS
Normal
Service
Alarm
Signal Processing (D20, D20R)
1
N/O
N/C
Island bus
Integration
via P-Bus
BIM
Block diagram of function
I/O functions
Application
Hardware
Function

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•The signal is read at regular intervals and debounced on hardware level
•An additional debounce time is available: 0…25.5 s (default = 0 s)
•Pulses of more than 20 ms from pushbuttons are registered and kept ready for
polling
•Desigo XWORKS plus: Only D20 (N/O) is available. Inversion (D20R, N/C) must
be realized via inverting in the parameterization.
•P-Bus BIM : The configuration (D20. D20R) sets the contact type (N/O or N/C)
•The meaning of the I/O status LED can be parameterized (TXM1.8D only):
Normal = green (default) / Alarm = Red / Service = Yellow.
•The signal operation can be selected: Contact_NO (default), Contact_NC)
•As a result
– The I/O status LED is activated.
– The process value is communicated over the bus
– The LCD is activated
Digital inputs cannot be overridden locally. The override button has no effect, and if an
attempt is made to operate it, an error is displayed.
•The I/O status LED shows the source signal
•The LCD panel (if available) shows the source signal type (status contact, N/O or
N/C contact) and the state of the contact:
N/O contact /
N/C contact
Process value island bus
Process value
LCD-Display
I/O status LED
closed
open
active
inactive
10561z155
ON
OFF
N/O N/C
> 20 ms
200 ms
P-Bus Polling
N/O
> 20 ms
Diagram: Cause and effect
For details, especially in relation to flashing pattern and errors: refer to the section "Dis-
play, operation and diagnostics" in the TX-I/O™ Engineering and installation guide [6].
Local override
Display

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3.2 Status indication, pulse contact
(BI Pulse NO / D20S)
(Function for P-bus BIM: See section 3.3)
Used for the acquisition of status pulses from volt-free pulse contacts and electronic
pulse transmitters such as transistors and optocouplers.
The pulses can be triggered by:
– Mains voltage monitoring systems
– Emergency pushbutton signals, e.g. in elevators
– Start-up monitoring for analysis of faults
•The function requires one I/O point
LCD
Signal Processing
(D20S) Memory
Process
value
Acknowledge
I/O status LED
NO Contact BUS
BUS
10561z156
Block diagram of function
•The signal is read and debounced on hardware level
•An additional debounce time is available: 0…25.5 s (default = 0 s)
•The pulse is then saved and transmitted to the bus master
•The bus master acknowledges receipt (Acknowledge)
•The memory is cleared, the LED goes off, and the input is ready for a new pulse
Additional incoming pulses before the Acknowledge are ignored.
•The signal operation can be selected: Contact_NO (default), Contact_NC)
Digital inputs cannot be overridden locally. The override button has no effect, and if an
attempt is made to operate it, an error is displayed.
•The I/O status LED does not show the source signal, but the state of the signal
memory
•The LCD panel (if available) shows the source signal type (status contact, N/O or
N/C contact)
•The LCD panel shows the change (a block of 3 fields which change with each pulse):
Application
Hardware
Function
Local override
Display

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N/O contact
N/C contact
Acknowledgement
Process value
I/O status LED
LCD display
closed
open
closed
open
active
inactive
ON
OFF
10761D05
Diagram: Cause and effect
For details, especially in relation to flashing pattern and errors: refer to the section
"Display, operation and diagnostics" the TX-I/O™ Engineering and installation guide [6].
In the event of an interruption in communication with the bus master, it makes no
sense to store old pulses. Therefore, the memory and the acknowledgment are
bypassed and the pulses are displayed directly.
3.3 Status indication, pulse contact (P-Bus-BIM)
(D20S, realized with BI Static)
(Function for island bus: See section 3.2)
Used for the acquisition of status pulses from volt-free pulse contacts and electronic
pulse transmitters such as transistors and optocouplers.
The pulses can be triggered by:
– Mains voltage monitoring systems
– Emergency pushbutton signals, e.g. in elevators
– Start-up monitoring for analysis of faults
•The function requires one I/O point
•The TX-I/O modules support only inputs with N/O contacts.
Response in the
event of a fault
Application
Hardware
Function

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LCD
Memory
Process
value
Acknowledge
N/O Contact Island
Bus
P-Bus
10561Z204
I/O status LED
Signal Processing
(D20S)
Process
value
P-Bus
I/O Module P-Bus BIM
Block diagram of function
•The signal is read and debounced (pulses longer than 20 ms)
•The pulse is then saved in the P-bus BIM and transmitted to the automation station
•The automation station acknowledges receipt (Acknowledge)
•The memory is cleared, and the input is ready for a new pulse
Additional incoming pulses before the Acknowledge are ignored.
Digital inputs cannot be overridden locally. The override button has no effect, and if an
attempt is made to operate it, an error is displayed.
•The I/O status LED shows the source signal
•The LCD panel (if available) shows the source signal type (status contact, N/O)
and the activity of the contact
•However, for quickly changing signals, a maximum changing frequency of 5 Hz is
maintained by the displays.
N/O contact
Acknowledgement
(P-bus)
Process value
(P-bus)
I/O status LED
LCD display
closed
open
active
inactive
ON
OFF
10561D105
N/O
Diagram: Cause and effect
For details, especially in relation to flashing pattern and errors: refer to the section
"Display, operation and diagnostics" the TX-I/O™ Engineering and installation guide [6].
In the event of an interruption in communication with the automation station, the last
unpolled pulse is stored in the module. and the incoming pulses on the module
continue to be displayed..
Local override
Display
Response in the
event of a fault

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3.4 Pushbutton input (BI Push NO, BI Push NC)
Acquire potential-free button pulses (simple button/dual button).
The process values (event telegrams) are evaluated in the bus master and help to
control:
– Blinds
– Lighting applications
– Other applications controlled by pulses
•The function uses one or two I/O points (simple/dual button).
In case of a dual button, both I/O points must be located next to each other on the
same module pattern.
•Only modules from series D support this function.
Signal Processing
(PBI Event)
Process values
(Events)
I/O status LED
NO Contact (UP)
BUS
10561z157
NO Contact (DOWN)
Function diagram
•The signals are read and debounced on hardware level
•The pulses are interpreted and converted to corresponding events.
The function then sends events at the start, the end, and partially during the pulse
(standard pulse patterns are:
– Short pulse
– Long pulse
– Short double-click
– Short/long double-click
– Long double-click
– Dual click (simultaneous clicking of two buttons)
•The events are sent immediately on the island bus
•A new event prior to sending overwrites a previous event. Exceptions:
– Repeat does not overwrite start
– Heartbeat (due to COVperiod) does not overwrite upcoming events
•The signal operation can be selected: Contact_NO (default), Contact_NC)
Application
Hardware
Function

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The following events (telegrams) are used:
Event
Description
Tg 1
Report on current status (for COV repetition)
Tg 2
Rising slope (start of short or long pulse)
Tg 3
Click completed
Tg 4
Start of a long pulse
Tg 5
Repeat, long pulse active
Tg 6
Long pulse completed
Tg 7
Start short double-click
Tg 8
Short double-click completed
Tg 9
Start short/long double-click
Tg 10
Start long double-click (two clicks with one long pulse at start)
Tg 11
Long double-click completed
Tg 12
Dual click (both buttons pressed simultaneously)
Tg 13
Dual click completed
Normally, preparameterized buttons are used that are customized for the blinds/lighting
applications to be used.
If individual parameterization is required, the function provides great flexibility to
implement any operating philosophy.
The following parameters are available:
Parameter
Description
Default
Source.Size
1 or 2 (simple/dual button)
1
tp
Pulse length 0.1...25.5 s (increment 0.1 s)
0.5 s
tr
Repeat length 0.1...25.5 s (increment 0.1 s)
1.0 s
td
Double-click length 0.1...25.5 s (increment 0.1 s)
0.5 s
Enable Flags
If set
If not set
Default
Positive Edge Enable
Rising slope sent
Rising slope not sent
Disabled
Stop Long Enable Sends Tg 6 at the end of a long
pulse
Falling slope for long pulse
(Tg 6) not sent.
Disabled
Stop Long Double
Enable
Sends Tg 11 at the end of a long
double-click
Falling slope for long double-click (Tg
11) not setn
Disabled
Repeat Enable Repeats Tg 5 with interval of tr
while button is pressed
Sends no Tg 5 Enabled
ShortDoubleClick
Enable
Sends Tg7, Tg8, Tg9, if short or
long/short double-click is identified
(second rising slope before
expiration of td td)
Sends no Tg 7, Tg 8, Tg 9.
Also no status transition to first pulse.
Disabled
LongDoubleClick
Enable
Sends Tg 10, if long double-click
identified (second rising slope after
long pulse)
Sends no Tg 10 and no Tg 11.
Also no status transition to Long
Pulse.
Disabled
DualClick Enable Sends Tg12, Tg13, if both buttons
pressed within tp
Sends no Tg 12, Tg 13. Also no status
transition to DualClick
Disabled
Process value
Parameterization

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Examples
Events identified
Zeitlicher Ablauf mit gesendeten Events
Flags
•Rising slope
•Short pulse
•Long pulse
•Very long pulse
(Tg 5 activated)
•Falling slope
tp tp tr tr
Tg 2 Tg 3 Tg 2 Tg 4 Tg 5 Tg 6
tr
Tg 5
tr
ShortDoubleClick
disabled
•Rising slope
•Short pulse
•Short double-click
•Short/long double-click
•Falling slope
tp tp
Tg 2 Tg 3 Tg 2 Tg 7
td td
tp
Tg 8
tp
Tg 2 Tg 7
td
tp
Tg 9 Tg 6
tr
tr
ShortDoubleClick
enabled
•Rising slope
•Long pulse
•Long double-click
•Falling slope
tp tr
Tg 2 Tg 4 Tg 5 Tg 6
tr
tr
td
tp tr
Tg 2 Tg 4
td
Tg 10
tr
Tg 11
LongDoubleClick
enabled
•Rising slope
•Dual click (both buttons
simultaneously)
•Falling slope
tp
Tg 2
UP
DN
Tg 12
Tg 13
DualClick
enabled
Digital inputs cannot be operated locally.
The I/O status LED is ON when when the N/O connected contact is closed
For details, especially in relation to flashing pattern and errors: refer to the section "Dis-
play, operation and diagnostics" in the TX-I/O™ Engineering and installation guide [6].
Local override
Display

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3.5 Multistate input maintained contact
(MI Switch)
•Mapping of several digital inputs to a single multistate value.
•3 different mapping kinds are available:
– 1 to n mapping
– Up-down mapping
– Binary mapping
This feature covers the following signal type.
Signal type
Description
MI Switch Maintained contact, multistate, NO contact.
•This function uses one I/O point for each stage.
•The I/O points must be on the same module and adjacent to each other.
•2...8 I/O points are admissible.
•The signal operation can be selected: Contact_NO (default), Contact_NC)
•Depending on the mapping kind, the I/O points can be active one by one or
simultaneously.
•The following mapping kinds can be parameterized (parameter Mapping Kind):
– 1 to n mapping
– Up-down mapping
– Binary mapping
•The multistate process value is mapped so that the mapping table defines just one
input to be active.
Before the process value MIValue changes, a time delay SwitchOverTime must
elapse, in order to debounce mechanical contacts (0...22.5 s, Default = 0.4 s).
•In the Mapping Table parameter, the default assignment of the I/O points to the
values of MIValue can be changed (for1 to n mapping only!).
•If more than one input is active, a Reliability Error message is transmitted (Quality =
MULTISTATE_FAULT) and the last valid process value stays active.
Active I/O point
MIValue
Stage
None
0
0
n
1
1
n + 1
2
2
n + 2
3
3
n + 3
4
4
:
:
:
n + 7
7
7
Active I/O point
MIValue
Stage
None
2
0 / Auto
n
1
1
n + 1
3
2
n + 2
4
3
Application
Signal types
Hardware
Function
1 to n mapping
Default mapping table
Example of a
modified table