ISMA CONTROLLI TP Manuale utente

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DMP253en | 1st Issue rev. 0 | 04/2022

User Manual

Software



TP Software User Manual
www.ismacontrolli.com
DMP253en | 1st Issue rev. 0 | 04/2022
page 2 of 49
Table of Contents
Introduction ............................................................................................................................. 4
1 Revision History................................................................................................................................4
Communication Protocols.................................................................................................... 5
1 RS485 Connection...........................................................................................................................5
2 RS485 Network Termination.........................................................................................................5
Communication Parameters................................................................................................ 6
1 RS485..................................................................................................................................................6
1.1 Setting MAC Address ................................................................................................................6
1.2 Setting Communication Parameters.....................................................................................6
2 USB......................................................................................................................................................9
User Interface Parameters................................................................................................. 10
1 Display ............................................................................................................................................. 10
1.1 Display Brightness.................................................................................................................. 12
2 Keypad............................................................................................................................................. 13
2.1 Keypad Brightness.................................................................................................................. 14
3 Touchscreen .................................................................................................................................. 15
4 Navigation LED .............................................................................................................................. 15
5 Buzzer.............................................................................................................................................. 16
6 Operating User Interface............................................................................................................ 17
6.1 Temperature Setpoint........................................................................................................... 17
6.2 Fan Control............................................................................................................................... 17
6.3 Occupancy................................................................................................................................ 17
6.4 CO2 Alarm ................................................................................................................................ 18
Sensors Parameters ............................................................................................................ 19
1 Temperature Sensor.................................................................................................................... 19
2 Humidity Sensor (Optional)........................................................................................................ 19
3 CO2 Sensor (Optional)................................................................................................................. 20
4 Temperature Setpoint................................................................................................................. 20
4.1 User Interface for Temperature Setpoint......................................................................... 21
5 CO2 Alarm ...................................................................................................................................... 23
5.1 User Interface for CO2 Alarm.............................................................................................. 23
Fan Control............................................................................................................................. 25
1 User Interface for Fan Control .................................................................................................. 26
1.1 LEDs ........................................................................................................................................... 27
Occupancy Control............................................................................................................... 28

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DMP253en | 1st Issue rev. 0 | 04/2022

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7.1 User Interface for Occupancy Control .................................................................................... 29

7.1.1 LEDs ........................................................................................................................................... 29

8 ECO .......................................................................................................................................... 30

9 Other Parameters................................................................................................................. 31

10 List of Modbus Registers .................................................................................................... 33

11 List of BACnet Obejcts......................................................................................................... 41

TP Software User Manual

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DMP253en | 1st Issue rev. 0 | 04/2022

page 4 of 49

1 Introduction

The TP Touch Point is a moderncomfort management wallpanel with two most popular

open communicationprotocols: ModbusRTU/ASCII and BACnetMS/TP.The Touch Point

is available in different configurations of sensors (temperature, CO2, and humidity), colors,

and versions with or without a display. The panel is equipped with an interactive TFT

touchscreen, touch buttons, and glass panel.

The panel can be configured using the iSMA Configurator software or Modbus registers/

BACnet objects. It fits most of standard junction boxes in Europe and can easily be

installed using a wall back box.

1.1 Revision History

Rev.Date Description

1.0 20 Apr 2022 First edition

Table 1. Revision history

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2 Communication Protocols

The TP panel supports Modbus RTU/ASCII and BACnet MS/TP communication protocols,

using 2 RJ45 sockets and a screw terminal (one RS485 port).

Note: A communication protocol is selected by setting a second switch on the DIP switch

on the back of the panel:

Off: Modbus RTU/ASCII (default);

On: BACnet MS/TP.

The Modbus address of a server device is set using the rotary switch.

Note: If the rotary switch is set to 0, the address is read from the ADDRESS register/object

(decimal address: 22). See Communication Parameters.

Other communication parameters such as baud rate, number of data/stop bits, or parity

bit are set using relevant Modbus registers or BACnet objects.

2.1 RS485 Connection

Figure 1. RS485 communication diagram

2.2 RS485 Network Termination

Transmission line effects often present a problem for data communication networks.

These problems include reflections and signal attenuation. To eliminate the presence of

reflections of signal from the end of the cable, the cable must be terminated at both ends

with a resistor across the line adequate to its characteristic impedance. Both ends must

be terminated since the propagation is bidirectional. In case of an RS485 twisted pair

cable this termination is typically 120 Ω.

Note: A termination resistor can be added with a third switch on the DIP switch on the

back of the panel:

off: termination resistor disconnected (default);

on: termination resistor added.

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DMP253en | 1st Issue rev. 0 | 04/2022

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3 Communication Parameters

The TP panel is capable of simultaneously exchanging data on two buses, RS485 and USB.

3.1 RS485

The RS485 bus is accessible with RJ45 or 4-pin green screw connector.

There are 3 communication protocols that can be selected using the DIP switch 2 and

PROTOCOL field:

DIP Switch 2 PROTOCOL (23)

Modbus RTU Off 0

Modbus ASCII Off 1

BACnet MS/TP On N/A

Table 2. Setting communication protocol

The Modbus register reading the protocol set on the DIP switch is the following:

PROTOCOL_DIPSWITCH: reads the communication protocol set on the DIP switch;

Modbus register: 30003;

BACnet object: N/A.

3.1.1 Setting MAC Address

The device's MAC address can be set using one of the following methods:

rotary switch: sets addresses from 1-9; if 0:

ADDRESS (decimal address: 22).

The Modbus register reading the address set on the rotary switch is the following:

ADDRESS_ROTARY_SWITCH:reads the Modbus address set on the rotary switch (0

means the address is read from the ADDRESS register/object);

Modbus register: 30002;

BACnet object: N/A.

3.1.2 Setting Communication Parameters

BACNET_DEVICE_ID: sets the device's BACnet ID;

Modbus register: 40015;

BACnet object: DEVICE, property: Object Identifier;

BAUD_RATE:sets a baud rate of the panel. The baud rate is calculated according to the

formula: baud rate = (register's value)⋅10. The default value is 11520 (115200 bps);

Modbus register 40017;

BACnet object: DEVICE, property: 3084.

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Value Baud Rate (bps)

480 4800

960 9600

1920 19200

3840 38400

5760 57600

7680 76800

11520 115200 (default)

Table 3. Baud rate values

STOP_BITS:determines a number of stop bits in a Modbus frame according to the

following table:

Value No. of Stop Bits

1 1 (default)

2 2

Table 4. Values of the STOP_BITS register

Modbus register 40018;

BACnet object: N/A;

DATA_BITS:determines a number of data bits in a Modbus frame (the Modbus ASCII

protocol requires 7 bits):

Value No. of Data Bits

7 7

8 8 (default)

Table 5. Values of the DATA_BITS register

Modbus register 40019;

BACnet object: N/A;

PARITY_BIT: each byte of data being transferred may have an additional protection of a

parity bit added before stop bit (bits). The 16-bit register determines a number of added

parity bits according to the table below:

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Value No. of Parity Bits

0 None (default)

1 Odd

2 Even

Table 6. Values of the PARITY_BITS register

Modbus register 40020;

BACnet object: N/A;

Figure 2. Modbus frame

Note:The BACnet protocol requires specific values of stop bits, data bits, and a parity bit

of 1, 8, and none, respectively. Therefore, the user settings for these objects are not

applicable.

REPLAY_DELAY:determines a number of milliseconds before the panel answers the

request. This time is used to extend the interval between the request and response. The

default value of 0 means no delay (the response is sent once during the 3,5 character

required by the Modbus RTU protocol).

Modbus register 40021;

BACnet object: N/A.

Incoming data frames are counted and presented through the following parameters:

RECEIVED_FRAMES: shows the number of received frames. The register's value is reset at

the start of the panel and at the change of transmission parameters;

Modbus register: 30004;

BACnet object: DEVICE, property: 5101;

ERROR_FRAMES: showsthe number of error messages (shorter than 3 or with incorrect

CRC value) received by the panel from the time of the last power-up. The register's value

is reset at the start of the panel and at the change of transmission parameters;

Modbus register: 30006;

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WARNING!

The above parameters are remembered, but NOT automatically set. In order to set

these parameters to the panel, it is required to perform one of the following actions

after entering required values:

restart the panel;

send a reload settings command (0: 0x2FF, DEVICE (property: 3030): 0x2FF, iSMA

Configurator, or FCU Updater).

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BACnet object: DEVICE, property: 5103;

TRANSMITTED_FRAMES: shows the number of sent frames. The register's value is reset

at the start of the panel and at the change of transmission parameters;

Modbus register: 30008;

BACnet object: DEVICE, property: 5104.

3.2 USB

A USB bus is accessible through the USB C port at the bottom of the device. Device

identifies itself as a USB HID, and can be configured using the iSMA Configurator and FCU

Updater software.

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4 User Interface Parameters

Direct interaction with the TP device is possible via user interface (buttons and display, if

available) by default. The panel can be activated or inactivated using the following

parameter or in the iSMA Configurator:

DEVICE_CONFIGURATION, bit 11: PANEL_OFF

Modbus register: 40205;

BACnet object: BO9, property: Present Value.

4.1 Display

The TP panel is available in versions with or without an LCD display. If available, the

display functions can be activated or inactivatedusing the following parameter or in the

iSMA Configurator:

DEVICE_CONFIGURATION, bit 3:LCD_BACKLIGHT_ACTIVE

Modbus register: 40205;

BACnet object: BO3, property: Present Value.

In versions with a display, during a normal operation, the display shows measured values

for allsensors available in the panel and a temperature setpoint (if available), with

parameter’s shortcut name and a proper unit.

Figure 3. The display sequence

The display configuration parameters include the following (these functions can be edited

directly in the parameters or in the iSMA Configurator):

REFRESH_TIME:sets the duration of the display time of particular parameters. When the

refreshing time elapses, the next parameter is displayed according to the sequence of

parameters display. The default value is 5 seconds (each parameter is displayed for 5

seconds). The maximum refreshing time is 60 seconds.

Modbus register: 40217;

BACnet object: AO13, property: Present Value;

TEMPERATURE_CONFIGURATION:allows to configure the temperature sensor with two

bits:

ACTIVE, bit 0: activates or deactivates the sensor;

Modbus register: 40316;

BACnet object: AI4, property: Out Of Service;

THIRD_POINT_ACTIVE, bit 4: enables or disables decimal values in the sensor;

Modbus register: 40316;

BACnet object: AI4, property: 4202;

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