HRW BACnet HPE8884BN User manual

HRW Limited Unit E, 11/F, Sun Ying Industrial Centre Ph [phone]
9 Tin Wan Close, Tin Wan Fax [phone]
Hong Kong www.hrw.hk
HPE8884BN Network I/O Expansion Unit, BACnet MS/TP
FW4.02
28 point network point expansion unit for BACnet MS/TP networks. The large I/O count enables remote
monitoring and control of numerous points at a similar location by one of more master controllers over
the BACnet network.
Universal inputs may be locally scaled and tagged according to engineering units, calibrated and/or
filtered to adjust for cabling or sensor characteristics. Digital inputs and UI’s may be configured as pulse
counters. Digital outputs may have short-cycle timers set.
Typical Applications
 Digital/analogue inputs such as alarms, operation statuses, high/low level, water & air flow
proving, environmental conditions such as temperature, humidity or pressure, and other
auxiliary contacts.
 Digital/analogue outputs for switching of fans, pumps, lighting or remote status indication, and
modulating control of actuators, speed or load controllers and remote analogue gauges.
 Universal inputs and digital inputs may be used as counting inputs for metering of energy and
volume and instantaneous load calculation at the Master controller
Feature Summary
 8 Digital Inputs (DI n/o or n/c, flip/flop, pulse-counting up to 10Hz)
 8 Digital Outputs (DO) with power-up presetting & short-cycle timers
 8 Universal Inputs (UI - user configurable analogue [AI] or digital [DI n/o or n/c], flip/flop, pulse-
counting up to 10Hz)
 4 Analogue Outputs (AO) with power up presetting
 RJ11 connected room sensor options (UI1 & UI2 via screw terminals or RJ11 socket)
 UI’s user definable for non-standard sensors, active or passive from 1kΩ
 Connected sensors may be calibrated and filtered by way of the UI configuration
 Isolated, 256 node (1/8th load), RS485 network driver
 Communication speeds from 2400 baud up to 76800 baud
 System-wide unique device addressing
 BACnet application services; Single-Read, Multiple-Read, Single-Write, Who Is, I Am, Who
Has, I Have
 BACnet priority array
 LED indication of the On/Off status of DI and DO points for fast visual status verification
 Dynamic LED indication of AO status
 Sequential flashing of DI LED’s as ‘Watchdog’
 Automatic communication resumption after a power loss
 PC configuration by text file download using FUNCPROG or by direct parameter settings entry
 Upload text file data for retrieving lost application settings, for re-use in other controllers

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OPERATION OVERVIEW ....................................................................................................................................3
BACNET OBJECT INSTANCES ..........................................................................................................................3
BACNET PRIORITY ARRAY ...............................................................................................................................4
FUNCTION BLOCK OBJECTS & SUB-PARAMETERS ..................................................................................5
TERMINAL MODE ................................................................................................................................................6
HYPERTERMINAL SETTINGS ...................................................................................................................................6
Additional Settings............................................................................................................................................7
Connecting at 76800 Baud Rate.......................................................................................................................7
Saving HyperTerminal Settings........................................................................................................................7
Changing Baud Rate.........................................................................................................................................7
BREAK IN TO TERMINAL MODE ..............................................................................................................................8
ADMINISTRATION COMMANDS ...............................................................................................................................9
DISPLAY NAVIGATION ......................................................................................................................................... 10
SUMMARY SCREEN SETTING ................................................................................................................................ 10
MANUAL OVERRIDE / RELEASE............................................................................................................................ 10
OPERATIONAL DISPLAYS ............................................................................................................................... 11
USER SUMMARY SCREEN ..................................................................................................................................... 11
DOWNLOAD TEXT FILE ........................................................................................................................................ 12
‘MAIN’ PHYSICAL I/O DISPLAY ........................................................................................................................... 13
POINT LIST DISPLAY ............................................................................................................................................ 13
RESET TO FACTORY DEFAULT ..................................................................................................................... 14
UPLOAD TEXT FILE ........................................................................................................................................... 14
LINEARISATION TABLE ................................................................................................................................... 16
FACTORY DEFAULT SENSOR TYPES ..................................................................................................................... 16
ACTIVE SENSOR SCALINGS .................................................................................................................................. 16
PASSIVE SENSOR DEFINITION ............................................................................................................................... 17
RESET TO FACTORY DEFAULT .............................................................................................................................. 17
INSTALLATION & COMMISSIONING ........................................................................................................... 18
CONNECTIONS .................................................................................................................................................... 19
DIMENSIONS ........................................................................................................................................................ 20
TECHNICAL DATA ............................................................................................................................................. 20
ORDERING INFORMATION ............................................................................................................................. 21
HPE8884BN ........................................................................................................................................................ 21
ACCESSORIES ....................................................................................................................................................... 21
OTHER HP_BN SERIES DEVICES .......................................................................................................................... 21
UI CONFIGURATION REQUEST FORM ................................................................................................................... 22
DOCUMENT UPDATE HISTORY ..................................................................................................................... 23

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Operation Overview
The inputs and outputs are numerically represented as a Function Block ‘Object’. The object is a
function block’s output value. Depending on the purpose of a function block the object may have a
range of sub-parameters available for defining the block’s function and the operational features &
limitations of the function.
In this document the term ‘Objects’ will mainly be used in the context of BACnet networks but will
otherwise be referred to as a ‘point’ or ‘points’ when discussing specific control applications.
The process of setting up function blocks and connecting function blocks to form an application uses
simple text lines therefore it is not necessary to learn a complex programming language. The settings
may be manually typed in to the device or, using the FUNCPROG 141101 programming tool which
provides a visual representation of each block, an application text file may be created, saved and
downloaded to the device as a complete group of settings. Earlier versions of FuncProg may be used
but the latest feature settings will not be directly available in those earlier versions.
The ability to make single setting changes directly at the device makes for easy debugging and
commissioning.
The function blocks comprise:
 Physical I/O for connection of input switches, sensors and output control devices
 Network settings
In all cases points may be manually overridden for testing & commissioning purposes or for service
override. In respect of BACnet priority arrays manual overrides are Priority 9 (factory default = Null /
internal program control = 16).
Connection to the device for programming and service is via a terminal program such as HyperTerminal
(recommended). While on-line to the device it is possible to view point statuses and where applicable,
any dependent or influencing point’s connections. Statuses are updated live to the terminal screen
every 10 seconds or manually refreshed any time by pressing the enter key.
In additional to the predefined point displays a user-defined display is available for a customised point
summary related to an application. The user display may contain up to 32 lines of user text with or
without dynamic points included.
BACnet Object Instances
A total of 28 function blocks exist in the device. Most objects may be Binary or Analogue, and may be
seen as an Input, an Output or a Value.
 A physical digital input has a Binary Input (BI) instance by default but if configured as a pulse
counter then its object instance would be Analogue Input (AI).
 A physical digital output is a BO (Binary Output) by default but if programmed for PWM control,
which has a control value of 0…100%, then it is seen as an AV (Analogue Value).
Using DO1 as an example:
Description: Physical digital output
Object #: 9
Object Instance when binary DO: BO9 or BV9
Object Instance when PWM function: AV9

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The common reference in all cases is the object # therefore during device Object Discovery over the
network the option of Input, Output or Value is decided based on the programmed application use of the
object in question.
BACnet Priority Array
The BACnet protocol utilises a Priority Array for each object to enable various network devices to take
control of a device’s object based on the level of need. Priority 16 is the least significant level and may
be considered normal ‘Auto’ operating level. Priority 1 is the highest control level, generally used for
emergency control under fire condition or similar events.
In respect of this device:
 The objects are null priority by default
 Manual commands via terminal mode operate at priority level 9
 Release of a manual results in an object reverting to next lowest and still valid priority level
 Commands from the network to DO and AO are remembered after a power reset if priority
1…8

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Function Block Objects & Sub-Parameters
The following is an overview of the function block features and options. For in-depth description of
function choices and their use please also download or request the separate FUNCPROG Application
Tool document.
Function Block Object Para # Description Selection Options
Digital Input 1…8 1…8
x00=
x01=
x02=
Input type
Output OR
Output AND
6 - Pulse counting, 7 - Digital, 14 - n/c, 15
- Toggle on/off
Object #
Object #
Digital Output 1…8 9…16
(x)x06=
(x)x07=
(x)x08=
Minimum ON time (sec)
Minimum OFF time (sec)
Maximum Run time (sec)
0…255
0…255
0…1000
Universal Input 1…8 17…24
xx00= Sensor type
0 - 100k NTC (-10…90°C) [Ctc]
1 - Ni1000 (-10…90°C) [Cni]
2 - 0-10Vdc (0…100%) [%V1]
3 - 4…20mA (0…100%) [%mA]
4 - PT1000 (-10…90°C) [Cpt]
5 - 10k NTC (-10…90°C) [Ctx]
6 - Pulse counter [P]
7 - Digital [D]
8 - % (0-100%) [%]
9 - Seconds [Sec]
14 - Digital normally-closed [DNC]
15 - Toggle on/off [D T]
xx01=
Input calibration - Offsets the
measured value up to 10% of the
sensor range
Any value within +/-10% of the sensor
range
xx02=
Filter incoming sensor measurement
when the connected sensor is
unstable
0 - Minimum (factory default)
1…9 - User setting where 9 represents
the maximum filtering sample time
For unstable sensors then a setting of 1
or 2 will typically be enough filtering to
result in a stable measurement
xx03=
xx04=
Output OR*
Output AND*
Object #
Object #
Analogue Output 1…4 25…28
* Digital 1 = 1000 (100%) when applied to these analogue logic functions. Analogue values will act as a
Output Minimum when applied to an Output OR and Output Maximum when applied to an Output AND.

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Terminal Mode
The HPECOM serial data cable is used for terminal mode between the device and a PC running a
terminal program. HyperTerminal is recommended. A USB port <> Serial comm port (DB9) converter
may be required if the PC being used does not include a Com 1 serial port.
HyperTerminal Settings
For successful communication between HyperTerminal and the device, initial Properties setup of
HyperTerminal should be as per the screen prints below.
‘Connect to’ Comm Configuration: ‘Settings’ General:
‘Settings’ ASCII Setup:
9600

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Additional Settings
Some PC platforms may need keyboard response adjustment for initial Terminal Mode success. These
settings may be done via the PC Control Panel >> Keyboard Settings:
 Fastest Repeat rate
 Shortest Delay time
 Fastest Cursor Blink rate
Connecting at 76800 Baud Rate
Because HyperTerminal does not support 76800 baud then after setting to 76800 the device baud rate
will remain at 9600 baud for HyperTerminal communication and switch to 76800 after Writing the new
baud rate and eXiting terminal mode.
To allow later terminal communication a device set with 76800 baud will operate at 9600 baud for the
first 5 seconds after a power-up. If no attempt to connect the terminal at 9600 baud is made within 5
seconds of a power-up then the device will automatically switch to 76800 for normal network operation.
Saving HyperTerminal Settings
For ease of connection it is recommended to save the HyperTerminal setup for each baud rate you may
wish to use with an easily recognised configuration name. For example:
 HPECOM 24 (2400)
 HPECOM 48 (4800)
 HPECOM 96 (9600)
 HPECOM 19.2 (19200)
 HPECOM 38.4 (38400)
 HPECOM 57.6 (57600)
Changing Baud Rate
After changing to a new baud rate the controller will not start running at the new baud rate until the
change has been Written (W). If setting a new baud rate via text file application download the new baud
rate will be applied immediately the download is completed (auto-Write).
In either case, after the Write action, you will need to reconnect the terminal program at the new baud
rate if you wish to continue the terminal session.

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Break in to Terminal Mode
When HyperTerminal is running and the HPECOM cable is connected to the device the initial terminal
screen will be receiving an ASCII character dump which is the BACnet transmission from the device.
The ASCII dump will appear differently with different device address setting and if HyperTerminal baud
rate is different to the baud rate set in the device. Below is an illustration of how the ASCII dump will
look for a device at default settings; address 98 and 9600 baud.
To break in to terminal mode set Caps Lock on and hold the ‘T’ character key continuously
(TTTTTTT…). After five (5) T’s have been sent to the device it will switch to terminal mode. At this point
the BACnet activity on the network will be halted and the device will display the default user screen.

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Administration Commands
Function Enter Result Options / Comments
Start
communication TTTTT(TTT…) Display of configuration and I/O status
With the Caps Lock on, hold the T key down
until the screen updates with HPE data. It is
not necessary to press the enter key to start
communication.
Download text
file DE Make ready for file path Menu: Transfer > Send textfile > file
Upload text file UE
All settings are uploaded to
the terminal for archive or
re-use
HyperTerminal: Start a Capture Text
procedure before invoking UE then stop the
Capture after Upload complete.
Indigo you may simply copy the text on the
terminal screen to a text file.
Reset to
Factory Default FD=1 Reset to ex-factory settings FD will be displayed in the top line of the I/O
summary screen after reset
Set node
address (MAC)
98=1…98,
100…127,
128…247
Network node number is
assigned
Example: 98=25
1…98 / 100…127 the device will be a ‘token
passing master’
128… 247 the device will become a network
slave after power reset
Set system
Device Instance DI=0…4194303 Unique Device Instance is assigned
Example: DI=401025 (building 4, network 1,
node 25)
Set baud rate 99=… Network comms speed is
set
2400, 4800, 9600, 19200, 38400, 57600,
76800 Example: 99=9600
After Writing new comm. speed it will be
necessary to reconnect with Terminal at the
new comm. speed to continue the terminal
session!
Set Maximum
Master address MM=1…127
Highest Master device
address on the network is
registered
Next address searching limited to MM
address
Set Sys.
Vendor ID
(SysVid)
SV=0…255 System vendor specific
features may be available
SV=0 applies generic BACnet operation. If
an entered ID is not implemented then the
generic operation will be applied
Zero the Reset
counters
95=0, 96=0,
97=0
Each Reset counter is
zeroed
Factory diagnostics
Resets = <95> <96> <97>
Rx timeout, Tx timeout, Hardware reset
Write values as
default W Changes written. Always do this after making changes that you wish to be permanent
Exit
communication X
Communication with
HyperTerminal no longer
active
Auto X after 240sec without key entry. After
eXit unplug the HPECOM cable to allow
network communication to take place

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Display Navigation
Function Enter Result Options / Comments
Display Control
Commands
M Display I/O summary screen M
P Display Point status list
Enter P or P1 to display the first 21 Objects. Enter
Pxx (where ‘xx’ is a point #) to display any other
point and the following 20 points
S Return to User Summary display S
SS Screen Static Disable 10 sec live update
SL Screen Live Enable 10 sec live update
SLLD Screen Line Logic Display Enable/Disable display of object numbers and
screen line numbers in the summary display
Summary Screen Setting
Function Line Method Result Options / Comments
Summary Display
Lines & dynamic point
setting
SL1…32 SL(x)x=abc… Assign Screen Line text as information or in
relation to SP1…32
Alpha/numeric, 40
characters max.
SP1…32 SP(x)x=nnn Assign Screen Point dynamic point value Object #
SLL1…32 SLL(x)x=nnn
Assign Screen Line Logic point who’s value
>0 will cause the related screen line to appear
at the top of the display (alarm state for
instance)
Object #
Manual Override / Release
Values that have been manually set will be indicted in HyperTerminal by an M tag next to the displayed
value. The BACnet priority level = 9
Manualled physical inputs (points 1…8 & 17…24) will revert to ‘Auto’ after being Released or after a
power reset. Physical outputs will retain the Manual setting after a power reset if the Manual state is
Written (W) before being released, thereby making the Manual state the power-up default state.
Function Enter Result Options / Comments
Manual a
Digital Object #=1, 0 Digital on or off
1=On
0=Off
Example: 37=1
Manual an
Analogue Object #=0…n 0…100% block output
Block range 0….max
Example: 25=50 (AO1 50% output
/ 5Vdc output)
Release
Manual
overrides back
to ‘Auto’ *
R
R=1…112
Inputs will return to auto state/value.
Other points will remain at manualled
state/value until power reset or
commanded
Example 1: R
All overrides are cleared
Example 2: R=9
DO1 (point 9) only return to Auto
Reset pulse
accumulator
100…800=6
1700…2400=6
DI or UI with pulse accumulator
config. (UI or DI setting 6) is reset to
zero
Example: 800=6