SBC PCD7.L79xN User manual

Document 27/602; Version EN02 │ 2013-11-27
User manual
the compact PCD7.L79xN room controller
Controls Division

Saia-Burgess Controls AG
Manual for PCD7.L79xN room controllers │ Document 27 / 602 EN02 │ 2013-11-27

Saia-Burgess Controls AG
Manual for PCD7.L79xN room controllers │ Document 27 / 602 EN02 │ 2013-11-27
Contents
0-1
0
0 Contents
0.1 Document History ........................................................................................... 0-3
0.2 Trademarks .................................................................................................... 0-3
1 Overview
1.1 PCD7.L79xN series | compact room controller with Serial S-Net ................... 1-1
1.2 Possible uses for the PCD7.L79xN series ...................................................... 1-3
1.2.1 Standalone control with no communication .................................................... 1-3
1.2.2 Standalone control with communication to the automation station ................ 1-3
1.2.3 External regulation and control via the automation station ............................. 1-4
1.3 Application overview for the PCD7.L79xN series .......................................... 1-5
1.3.1 Device overview and technical details of the compact room controller .......... 1-6
1.3.2 Phased-out room controllers .......................................................................... 1-8
2 Commissioning instructions
2.1 Safety instructions .......................................................................................... 2-1
2.2 Assembly instructions ..................................................................................... 2-2
2.2.1 Mounting / Disassembly ................................................................................. 2-3
2.3 Procedure for the temperature calibration on commissioning ........................ 2-4
3 Function
3.1 Communication ............................................................................................... 3-1
3.1.1 Functions, commissioning .............................................................................. 3-1
3.2 Functions, settings .......................................................................................... 3-5
3.2.1 Functions, settings, room control unit ............................................................. 3-6
3.2.2 Functions, settings, operation ......................................................................... 3-6
3.2.3 Functions, settings, hardware ......................................................................... 3-9
3.2.4 Functions, settings, control parameters .......................................................... 3-14
3.3 Functions, control ........................................................................................... 3-17
3.4 Functions, regulation ...................................................................................... 3-22
3.5 Functions, actual values ................................................................................. 3-24
3.6 Functions, manual output control ................................................................... 3-26
3.7 Functions, master/slave .................................................................................. 3-28
4 Example applications
4.1 General ........................................................................................................... 4-1
4.2 System requirements ..................................................................................... 4-1
4.3 Initialisation ..................................................................................................... 4-1
4.4 Conguration.................................................................................................. 4-2
4.5 Function .......................................................................................................... 4-3
4.6 Control of free outputs .................................................................................... 4-3
4.7 Remote IO ...................................................................................................... 4-4
5 Register usage
5.1 Registers,conguration.................................................................................. 5-1
5.2 Registers, actual values ................................................................................. 5-5

Saia-Burgess Controls AG
Manual for PCD7.L79xN room controllers │ Document 27 / 602 EN02 │ 2013-11-27
Contents
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0
6 Technical data
6.1 Room controllers with Serial S-Net ................................................................. 6-1
6.1.1 Performance data for Serial S-Net ................................................................. 6-1
6.1.2 Electrical load on Serial S-Net ........................................................................ 6-2
6.1.3 Technical overview of room controllers PCD7.L790N - .L793N...................... 6-3
6.1.4 Dimension of room-controller PCD7.L790N - .L793N .................................... 6-4
6.2 Type description ............................................................................................. 6-5
6.2.1 Technical data for PCD7.L790N ..................................................................... 6-5
6.2.2 Technical data for PCD7.L791N ..................................................................... 6-7
6.2.3 Technical data for PCD7.L792N ..................................................................... 6-9
6.2.4 Technical data for PCD7.L793N ..................................................................... 6-11
A Appendix
A.1 Icons ...............................................................................................................A-1
A.2 Order codes ....................................................................................................A-2
A.3 Address of Saia-Burgess Controls AG ........................................................... A-3

Saia-Burgess Controls AG
Manual for PCD7.L79xN room controllers │ Document 27 / 602 EN02 │ 2013-11-27
Contents
0-3
0
0.1 Document History
Date Version Changes Remarks
2011-11-28 EN01 - Document derived from the manual 26/868
2013-08-20 EN02 overall Logo and company name changed
0.2 Trademarks
Saia PCD
®
and Saia PG5
®
are registered trademarks of
Saia-Burgess Controls AG
Subject to technical changes
Saia-Burgess Controls AG, 2011. © All rights reserved.
Published in Switzerland

Saia-Burgess Controls AG
Manual for PCD7.L79xN room controllers │ Document 27 / 602 EN02 │ 2013-11-27
PCD7.L79xN series
Overview
1-1
1
1 Overview
1.1 PCD7.L79xN series | compact room controller with Serial S-Net
With single room control for individual comfort and energy efciency
The PCD7.L79xN single room controllers enable users to adjust the room climate to
their individual needs.
The controllers have an internal temperature sensor and some models have a set-
point control as well as a presence key with LED display
All devices in the PCD7.L79xN product family can be run as standalone control
devices or connected directly to the automation station as Serial S-Net slaves.
Various applications provide different control and operating options in Serial S-Net
operation.
In RIO operating mode, control can be executed entirely externally in the master
station. In this case, the single room controller is used simply as a hardware
input / output for climate control.
Serial S-Net-Bus S-Bus, RS-485, Data-Mode
The different usage and operating modes
The functionality of the single room controller is based on various different usage and
operating modes. And each selectable operating mode can be assigned different set
points.
Non-use
No heating or cooling energy is routed to the room. This state is useful when
a window is open. The room controller keeps the room temperature above the
frost threshold of 8 °C.

Saia-Burgess Controls AG
Manual for PCD7.L79xN room controllers │ Document 27 / 602 EN02 │ 2013-11-27
PCD7.L79xN series
Overview
1-2
1
Non-use/standby
The room is prepared for use, but no presence has yet been registered in the
room.Aslongastheroomisnotaggedasoccupiedbytehpresencefunction,
theroomcontrollermaintainstheroomtemperaturewithinthespeciedlimitsat
standby level.
Use
The room is in use and should be brought to a comfortable temperature. The state
can be reached by pressing the presence key, addressing an external presence
sensor or sneding an instruction over the network.
Library of function objects
The PCD7.L79xN Room Control library pf function objects for the single room control-
lers can be downloaded free of charge from the Saia Burgess Controls home page at:
www.sbc-support.com

Saia-Burgess Controls AG
Manual for PCD7.L79xN room controllers │ Document 27 / 602 EN02 │ 2013-11-27
Possible uses
Overview
1-3
1
1.2 Possible uses for the PCD7.L79xN series
1.2.1 Standalone control with no communication
The controller regulates the room temperature without
any connection to a bus system. Control is handled
entirely by the individual room controller based on the
specieddefaultparametersettings.
The outputs are driven by a control algorithm depending
on the measured temperature.
The default set-point setting of 21 °Ccanbemodied
by the set-point control (according to the device).
T
P
M
1.2.2 Standalone control with communication to the automation station
The controller is run as a slave station with a unique
Bus address within a serial S-Net system. Control is
handled by the individual room controller with its own
control algorithm.
The control functions - time or event-driven - are
passed to the individual room controller by the
automationstationviasuitablycongurablefunction
objects or network variables. This supports individual
parameterisation and operation of the room controller.
The device, and hence the control function, can also
beinuencedatanytimeviatheSaiaPCD®master
station.
For parameterisation, there is a function object
available in the library for every room controller type. In
the case of open network connections, this is handled
via network variables or network objects.
T
P
M
LonWorks
®
, BACnet
®
Serial S-Net,

Saia-Burgess Controls AG
Manual for PCD7.L79xN room controllers │ Document 27 / 602 EN02 │ 2013-11-27
Possible uses
Overview
1-4
1
1.2.3 External regulation and control via the automation station
The Saia PCD®master station handles all regulation
and control tasks. The room controller itself is only
used as a remote input / output unit. Regulation and
control can then be adapted to requirements in a very
exibleway.
For parameterization, RIO function objects are
provided in the room controller library.
T
P
M
LonWorks
®
, BACnet
®
Serial S-Net,
RIO

Saia-Burgess Controls AG
Manual for PCD7.L79xN room controllers │ Document 27 / 602 EN02 │ 2013-11-27
Application overview
Overview
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1
1.3 Application overview for the PCD7.L79xN series
Communication-friendly control of all standard heating/cooling elements with
SBC Serial S-Net, including:
■Radiators / heating, cooling with changeover
■Radiator/cooled ceiling combinations
■Variable Air Volume (VAV) systems
2-tube for heating, cooling or changeover
Application Room
controllers
Valves Room
control
PCD7.L790N 24 V PWM -
PCD7.L791N 24 V PWM or
24 V 3-point
-
PCD7.L792N 24 V PWM or
24 V 3-point
yes
PCD7.L793N 24 V PWM or
24 V 3-point or 0…10 V
yes
4-tube for heating, cooling or changeover
Application Room
controllers
Valves Room
control
+
VAV
Cooling ceiling
Radiator
PCD7.L791N 24 V PWM -
PCD7.L792N 24 V PWM yes
PCD7.L793N 24 V PWM or 0…10 V yes