Specification sheet (English) - Trend

IQ23x
Data Sheet
Functionality
The IQ Controller’s functionality can be divided into three sections, strategy, firmware, and hardware.
Strategy
The strategy processes inputs according to a set of instructions
and then outputs signals which can be used to control plant.
Configuration: The IQ23x uses the standard IQ configuration
mode which enables configuration by way of the network, or
the supervisor port. SET can be used to create a strategy data
file (.IQ2) which can then be downloaded to the controller and
subsequently uploaded for backup purposes if connected to the
controller directly, by way of the network or by way of a modem.
A strategy data file from an IQ1xx controller (.IQF) can be
downloaded to an IQ23x and will require modification as
explained in the compatibility section
Modules: The strategy consists of a number of individual
functional blocks known as configuration modules. These
blocks can be linked in various combinations to enable plant to
be controlled in accordance with the building’s requirements.
The table lists the different types of configuration modules and
the number of each type available with IQ23x.
Module Type Number Module Type Number
Sensor 48 Critical Alarm 4
Sensor type 15 Alarm History 20
Loop 32 IC Comms 16
Function 160 Digital Inputs 48
Logic 160 Fast Sequence 8
Driver 32 Zone 5
Knob 30 Schedule 32
Switch 20 Calendar 20
Sensor log 32 User Password 6
Sequence step 400 Sequence time 1 s
Analogue Nodes 255 Digital Nodes 506
Display 200 Directory 40
Page 50 Group 10
Route 50 Destination 7
New Alarm Log 200
Full details of the modules are given in the IQ Configuration
Manual and Addendum. The IQ23x contains the normal IQ2
features as described in IQ Configuration Manual Addendum:
Engineers Journal (J), I/O Summary (i/o) Loader Issue (R(c),’c’
lower case), Serial Number (R(s), ‘s’ lower case), Supply
Frequency Option, Enhanced Logging, Module position, and
Strategy Cleardown. Differences between the modules covered
in the manuals and the IQ23x’s modules are covered below.
Address Module
It has two additional items described below:
default PIN disable: This increases the controller security by
disabling the default PIN. It is accessed using the character
“d”, setting d=1 will disable the default PIN. It may be enabled
by setting d=0 (as long as a valid PIN is used). This change
requires a PIN with level 99. If the default PIN is disabled and
the PIN settings are unknown (e.g PINs forgotten or after
battery replacement), the unit can be restored by clearing the
strategy using the address/baud rate switch zero reset and then
downloading the strategy.
Firmware
Communications: When operating as part of a Building
Management System, the IQ23x will be connected to other
devices by way of the Trend Network. This means that
information within the IQ23x can be accessed using one of
the Trend supervisor programs, or passed to other Trend IQ
controllers using inter‐controller communications, enabling the
sharing of information across the whole system.
When connected to the network the controller can use up to
2 different addresses. One address is for the controller itself,
the second is optional, and is for the supervisor port (locally
connected supervisor). The controller’s address is set by a
switch, and the supervisor port address is set up in the strategy
configuration (address module).
Hardware
Unit: The IQ23x is supplied in a metal enclosure. It has 4
mounting points which are on the same centres as the IQ111+
and IQ131+; they are also the same as those provided by the
IQ111 or IQ131 using the mounting bars. Its footprint is smaller
than IQ111 or IQ131, and the same as the IQ111 or IQ131 with
their mounting bars, but it is 13 mm deeper
Connectors: Two part connectors are used throughout
to facilitate wiring. An earth flange is provided for screen
termination with a special M3 earth stud close to the network
connection, and there are cleats for cable restraint.
Power: 230 Vac 50/60 Hz.
Note that this unit must be earthed (grounded) via the Earth
terminal of the IEC connector.
Fusing: The controller has no replaceable fuses; protection
is provided by means of a self-resetting thermally protected
transformer.
Indicators: LED indicators for receive and transmit network
current flow (RX, TX) and network OK ( ), also for all I/O
channels, power ( ), and fail ( ). See specification section for
details.
Network: The network terminals facilitate connection of 4 wire
cables. The standard Trend node features are included (TX,
RX, and network OK, , indicators, bypass relay, and network
alarm generation). There is also the facility for connection of a
supervisor or network display panel to the network by way of
the controller without the need for an additional node controller.
Internal Node: A node controller card may be fitted inside
the unit either as a pre-fitted option, or post-fitted using the
appropriate cables. There is a two pin polarised plug to supply
24 Vdc to the node and a four pin polarised plug which provides
a network connection. There is a set of two pairs of pins
adjacent to the network plug which are normally shorted by two
links; these must be removed when the node is connected. For
an integral node controller to operate the external network must
be connected, or the external network terminals must be linked
(TX to RX).
sUperv port addr: This operates as described in the IQ
Configuration manual addendum with the additional feature that
if the address is set to 120, the supervisor port will be disabled.
This gives increased security. The port can be enabled by
setting the address to another value by configuration or text
comms over the network.
Byte 506, Bit 1
This bit now has the fixed function of ‘IQ1 series simulation of
universal input action’ (see Compatibility section, Firmware).
2 IQ23x Series Controllers Data Sheet TA200538 Issue 2, 18-Jan-2012