HRW HPE-BNSMA User manual

HRW Limited 504-505, 5/F, Wai Wah Commercial Centre Ph [phone]
6 Wilmer Street, Sai Ying Pun Fax [phone]
Hong Kong www.hrw.hk
HPE-BNSMA – SMA Gateway to BACnet MS/TP
FW4.01
250 point integration of SMA protocol devices in to BACnet MS/TP networks. Up to 32 SMA devices
may be connected to the gateway for read access of up to 250 SMA data-points
Typical Applications
BACnet MS/TP network integration of SMA devices such as…
Sunnyboy inverter
Windyboy inverter
Sensorbox
Feature Summary
SMA terminal mode for network initialisation
SMA network device identification
SMA device points identification
SMA individual point configuration as BACnet object
BACnet application services; Single-Read, Multiple-Read, Single-Write, Who Is, I Am, Who
Has, I Have
BACnet priority array

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OPERATION OVERVIEW ....................................................................................................................................3
BACNET DEVICE ...................................................................................................................................................3
SMA NETWORK GATEWAY ...................................................................................................................................3
BACNET PRIORITY ARRAY...............................................................................................................................3
TERMINAL MODE ................................................................................................................................................4
HYPERTERMINAL SETTINGS...................................................................................................................................4
Additional Settings............................................................................................................................................5
Connecting at 76800 Baud Rate .......................................................................................................................5
Saving HyperTerminal Settings ........................................................................................................................5
BREAK IN TO TERMINAL MODE..............................................................................................................................5
BACNET CONFIGRATION COMMANDS .........................................................................................................6
SMA POINT CONFIGURATION COMMANDS ................................................................................................7
SMA TERMINAL MODE.......................................................................................................................................8
COMMAND SUMMARY............................................................................................................................................8
OPERATION ............................................................................................................................................................8
POINT PROGRAMMING......................................................................................................................................9
POINT STRUCTURE .................................................................................................................................................9
POINT SCALING ....................................................................................................................................................10
DOWNLOAD TEXT FILE ........................................................................................................................................11
ENABLE SMA PORT .............................................................................................................................................11
SCAN SMA NETWORK .........................................................................................................................................12
FIND FUNCTION....................................................................................................................................................12
DIAGNOSTIC DISPLAY ..........................................................................................................................................13
SMA POINT ERROR RESPONSE.............................................................................................................................13
INSTALLATION & COMMISSIONING ...........................................................................................................14
CONNECTIONS ....................................................................................................................................................15
DIMENSIONS ........................................................................................................................................................15
TECHNICAL DATA .............................................................................................................................................16
ORDERING INFORMATION .............................................................................................................................16
HPE-BNSMA......................................................................................................................................................16
ACCESSORIES .......................................................................................................................................................16
OTHER HP_BN SERIES DEVICES..........................................................................................................................16

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Operation Overview
The gateway comprises two sections; the BACnet MS/TP device and the SMA network reading data
base.
BACnet Device
The gateway is BTL listed, conforming to the BACnet standard’s requirements for device & object
discovery and network communication initiations and responses.
During commissioning the following should be configured:
Node # (local network unique number)
Device Instance (system-wide unique number)
MS/TP network baud rate
Maximum Master (MM), set to the highest node number existing on the network, for limiting
network traffic to only those devices that exist on the network
Up to 250 AV objects relating to the SMA network devices’ data points being read,
AV4…AV253
SMA Network Gateway
250 device data points may be configured, from up to 32 SMA devices. Each data point constitutes a
BACnet object (AV).
It is important to have the SMA device manufacturer’s manual available to assist with SMA point
address settings although the gateway’s Diagnostic and Terminal functions mean the available data
points can be identified without the manufacturer’s manual if need be.
For each required SMA data point the gateway data base point configuration consists of:
1. SMA device address
2. Channel number of the point required to be read
3. Scaling Type selection for manipulation of the read raw data before passing to the BACnet side
4. Point Type selection for proper interpretation of the received raw data before further
manipulation
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. The priorities are in the range 1 (high priority) to
16 (Auto operation).
In respect of this device:
The point database objects are NULL priority, signified by ‘17’ when viewing the points in
engineering Terminal mode
Manually overriding a point value via terminal mode invokes priority level 9
Release of a manual results in an object reverting to NULL or next lowest and still valid priority
level if it has been commanded from another device in the system (such as the BMS)
For normal reading of the SMA network points should always be at NULL priority

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Terminal Mode
An HPECOM (serial comm. port) or HPECOMU (USB) data cable is used for terminal mode between
the gateway and a PC running a terminal program. HyperTerminal or Indigo Terminal Emulator from
Shade Blue are recommended. A USB port <> Serial comm port (DB9) converter may be required for
HPECOM if the PC being used does not include a Com 1 serial port.
The following settings reflect HyperTerminal. Please contact us if you require assistance setting up
Indigo.
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 48 (4800)
HPECOM 96 (9600)
HPECOM 19.2 (19200)
HPECOM 38.4 (38400)
HPECOM 57.6 (57600)
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, an
example of which follows:

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BACnet Configration Commands
Once in terminal mode the following list of command lines may be used for setting up the BACnet
Function Enter Result Options / Comments
Start
communication TTTTT(TTT…) Break in to Terminal mode
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.
Set node address
(MAC)
1000=1…127
(master)
1000=128…247
(slave)
Network node number is
assigned
Example: 98=25
1…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 BACnet
baud rate 1001=… Network comms speed is set
2400, 4800, 9600, 19200, 38400, 57600,
76800 Example: 1001=38400
After changing comm. speed it will be
necessary to reconnect with HyperTerminal
at the new comm. speed to save (write) the
change!
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 1=0 All Reset counters are zeroed
Factory diag. In order as displayed:
Rx timeout, Tx timeout, Hardware reset
Zero the BACnet
comms error
counter
2=0 BACnet comms error
counter is reset Example: 2=0
Zero the SMA
comms error
counter
3=0 SMA comms error counter
is reset Example: 3=0
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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SMA Point Configuration Commands
Function Enter Result Options / Comments
Start
communication TTTTT(TTT…) Break in to Terminal mode
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.
Set SMA baud
rate 1002=… Network comms speed is set
1200, 2400, 4800, 9600, 19200 Example:
1002=9600
Set SMA
subnet comms
configuration
1002=… Subnet comms data
configuration is set
7N1, 7N2, 8N1, 8N2 Example: 1002=8N1
7O1, 7O2, 8O1, 8O2
7E1, 7E2, 8E1, 8E2
Diagnostic
display D
Point by point
response codes are
displayed
For data stream analysis between the HPE and
the SMA devices. Also displays scaled data
results within the point listings
Prepare for point
data base text file
download
DE
‘Ready’ will be
displayed at which time
the relevant text file
should located and sent
to the gateway
Data base lines may also be manually entered, one
by one
Delete current
point data base
DE followed by
10000=1
Any configuration of
AV4…AV253 is deleted
Download of a text file with new data base will
delete an old existing data base as a matter of
course
Find SMA point
detail F
Point data structure
is revealed from a
specified starting
point
Refer to the description on page 12
Scroll page
display P=1…10
Scroll to specific page if
more data-points are
present than can be
displayed on one
screen
Example: P=2
The second page of database settings are displayed
Priority Release
all points to NULL R All points are Released
to NULL priority
17 will be displayed at the extreme right of each
data point configuration line to signify NULL
priority
Priority Release
individual point to
NULL
R=4…253
Specified point is
Released to NULL
priority
17 will be displayed at the extreme right of the
target data point configuration line to signify NULL
priority
Enable M-Bus
subnet
communication
E
Toggles
Enabled/Disabled of M-
Bus Subnet
communication
Default Disabled to allow easy configuration when
no M-Bus devices are connected. Always ‘Enable’
when M-Bus devices are connected and points are
configured!
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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SMA Terminal Mode
Command Summary
Function Enter Result Options / Comments
Switch to SMA
Terminal Mode T Terminal mode screen is displayed
Display Terminal
Help text H
Choice of Terminal
mode commands are
described
GN – Get Network detail
RN – Reset Network
SNA – Set Network device Address
GCI – Get Channel Information
FR – Free command send (expert)
Exit Terminal
Mode X Return to normal point data base mode
Operation
After entering HyperTerminal communication with TTTTTTTTTTT… then enter Tto go to SMA
Terminal. Enter Hto display the Help text.
Enter GN to view the available network devices including their current network addresses, their serial
numbers and device type
2 2000860214 WR6KA-05
1 6830 SENS0500
3 2000860207 WR6KA-05
If the current network addresses are to be changed then use Set Network Address, SNA, command to
change a network address, using the device serial number. For instance, to change device with serial
number 6830 to network address 4 then enter: SNA6830=4
BN

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To view the channel details of the device with network address 2 enter Get Channel Information, GCI,
command: GCI2
Channel information allows identification of channel numbers, point types and data format including the
data units and range.
2 1 0104 Ana Para 1 DWrd 0200 SMA-SN lo 0.000000 hi 4294899968.000000
2 2 0104 Ana Para 1 Flt4 0110 Upv-Start V lo 250.000000 hi 600.000000
2 3 0104 Ana Para 1 Flt4 0110 T-Start s lo 5.000000 hi 1600.000000
2 4 0104 Ana Para 1 Flt4 0110 T-Stop s lo 1.000000 hi 3600.000000
2 5 0104 Ana Para 1 Flt4 2210 dU U-Konst V/s lo 5.000000 hi 100.000000
In the GCI read data excerpt above you can see device 2, channels 1…5. All are Analogue Parameters,
the first being a Double Word (4 data bytes / long integer) and the remainder being Flt4 (4 byte IEEE
Floating Point).
Via the HyperTerminal menus Transfer / Capture text option you can save this GCI data for later
analysis; create a capture file, press Enter GCIn, then stop the capture. Open the resultant text file with
Word to view a formatted record of the communication for analysis.
Point Programming
After eXit from SMA Terminal you can begin to enter gateway data points.
Each point from 4…253 may be configured to read a data point value from any SMA device present on
the SMA network. On the BACnet side each point 4…253 represents a BACnet object, AV4…AV253.
Point Structure
Gateway point configuration is in the following structure:
<Point #>=<SMA Device Addr>,<SMA Channel #>,<Scaling >,<PointType>
The ‘PointType’ is a code number the gateway uses to represent the different SMA data types:
Channel Description, Format Point Type GCI (Get Channel Information)
Tags
Analogue Parameter, 2-Word (4-Byte) 303 0104, DWrd
Analogue Parameter, IEEE Floating Point 403 0104, Flt4
Analogue Input Instant, 1-Word (2-Byte) 204 0109, Wrd
Counter Input Instant, 2-Word (4-Byte) 307 0409, DWrd
Status* Parameter, 1-Byte 109 0804, Byt
Status* Input Instant, 1-Byte 110 0809, Byt
Status* Input Instant Test, 1- Byte 111 0829, Byt
If point 4 is used to retrieve a device serial number of device 2 then point entry as follows: 4=2,1,0,303
Point scaling has been left as 0 as scaling is not required in this case.
* The SMA ‘Status’ information is retrieved as the first four ASCII characters of the status message.
Activate the DIAG display to see these characters. On the BACnet side this data will be provided in
numerical form and must be translated accordingly by the BACnet system.

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Point Scaling
Each point may be individually SCaled for correct decimal placement in Diag mode and prior to
communicating the value on the BACnet side.
Scaling types may be viewed in HyperTerminal by entering S to display the scaling table:
x 1 (Default)
<--------------------------- / 10
/ 100
/ 1,000
/ 10,000
/ 100,000
/ 1,000,000
x 10
x 100
x 1,000
x 10,000
x 100,000
x 1,000,000
Spare
/ 256
x 65,536
Scaling types may be assigned to a point either as a part of the Point Programming string as outlined in
the previous point programming section or individually, after initial point configuration once the live data
is seen and the scaling requirements are clear.
To scale an individual point as being divided by 10 then a Scale type value of 1must be assigned to
that point, as referenced in the left-hand column of the table above.
If after initial programming you discover that point 6 requires a decimal shift one place to the left (divide
by 10) then using command SC enter as follows:
SC6=1
The SC prefix indicates that only the Scaling portion of point 6 is being configured.

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Download Text File
Where a number of gateways may installed with similar point data base settings you may create the
setting lines in a text file (Notepad) for download to the gateway at one time.
Each setting line must be followed by a line return (enter) and the last line of the text file is a line count,
for download validation, in the format 10000=<# lines>. Example:
4=1,1,0,303
5=1,1,0,204
6=1,2,0,204
10000=4
|
In HyperTerminal Enter DE. The display will indicate that the existing data base is being blanked and
now ‘Ready’ to receive data base text file:
While in the ‘Ready’ state, navigate to the text file path via the Transfer / Send Text File dialogue:
After download of the text file the display will indicate a check between lines received and lines
expected (as set at the 10000=nnn line). If the lines check is correct then the new data base is loaded,
otherwise the old data base will be reinstalled automatically.
Enable SMA Port
Enter E to enable the SMA communication and enter W to write the enabled state so that it will still be
enabled after a power failure.
Note: To disable enter E again to toggle from enabled to disabled state.
Final cursor position after
entering line validation
10000=nnn line

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Scan SMA Network
In terminal mode any scanning of the SMA network will only occur after pressing Enter as a separate
action to any other settings. After exit from terminal mode the scanning will occur automatically.
After pressing Enter, wait for the display to refresh with read values (this may take some seconds if the
network contains many SMA devices and data points).
Find Function
If it is not clear which SMA channels are required then the Find function may be used to reveal active
SMA channels. The find function uses the settings of point 4 as a start point.
Example 1: If you wish to reveal the channel detail and activity of all channels of device 1 from
Analogue Input Instant channel 1: 4=1,1,0,204 (enter)
Example 2: If you wish to reveal the channel detail and activity of all channels of device 3 from Counter
Input Instant channel 1: 4=3,1,0,307 (enter)
Once you have set up point 4 according your search criteria then enter F and the points from the
starting Table/Row will be sequentially displayed so you can identify live channel data relating to the
installation.
To Exit the Find sequence enter TTTTTTTT… to revert back to the normal point listing.
Note: When you exit the Find sequence the address/channel detail at the scanning point at which you
exit will be inserted in to the point data of point 4. Please ensure the setup of point 4 is as you require it
before Writing (W) the configuration.
When analyzing the Find data you must consider that some data may be in a different point format than
that set at point 4 starting point. The AII type as illustrated above is 1 Word data whereas there may be
2 Word data or Float4 data within a particular channel list.

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Diagnostic Display
Enter D for Diagnostic display. The Diagnostic display serves three purposes:
1) Display IEEE floating point values (temperatures) in decimal coding
2) Display final user-scaled results with associated decimal placement
3) Provide a real time feedback of the network activity for identifying incorrect data point
addresses
When you press Enter to force a network scan you will see the gateway communication requests and
device response, including the gateway’s recognition of required data point values.
Via the HyperTerminal menus Transfer / Capture text option you can save this communication data for
later analysis; create a capture file, press Enter to force a scan, then stop the capture. Open the
resultant text file with Word to view a formatted record of the communication for analysis.
SMA Point Error Response
When the SMA device point is not responding then the gateway read value will remain at last valid
value.
If you require the gateway value to indicate 0 when a point is not responding enter DF=0 (Write the new
configuration) so that the inactive point will register 0 after four bad reads.
Entering DF=1 will revert to factory default (hold last valid read value).

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Installation & Commissioning
This is an RS485 network device designed for mounting in an electrical panel. Ideally it should
be mounted to the panel backplane in a horizontal position (RJ11 sockets on the lower side and
communications ports on the upper side)
Each 24Vac power supply transformer should have the neutral (24Vac N) connection grounded
at the electrical panel earth connection to ensure the device grounding is at the same potential
as the network master’s grounding
Where more than one device is connected to a common transformer ensure that the 24Vac
phasing is the same to each device (‘A’ connects to ‘A’, ‘N’ connects to ‘N’ in all cases)
If the red comms light adjacent to the RS485 terminals emits an obvious flash every time 24Vac
power is applied to the device then the micro-processor may be corrupted. The micro processor
should be replaced
RS485 multi-drop cable should be used for the network connections, complete with end of line
terminating resistors (120Ω). Belden 9841 or equivalent is recommended. The recommended
cable is a low capacitance twisted pair with braid and foil screen
The RS485 cables should be terminated directly at each device in a daisy-chain configuration,
avoiding ‘laterals’ or ‘spurs’
The RS485 screen should be connected at the network master’s ground terminal. The incoming
and outgoing screen at each device should be continuously connected via the S terminal of the
device (note that the device’s S terminal has no electrical connection to the device, it merely
acts as a junction terminal for the purpose of screen continuity)
The RS485 cable should avoid cable routes that run with power cables. Where the RS485
cable must cross power cables then they should cross at 90° avoiding parallel runs beside
power cables
Prior to connection of the slave devices to the RS485 network check that no AC voltage is
present. Double check the network for short circuits between the twisted pair cores and
between the cores and the screen. Ensure continuity of the twisted pair cores and the screen
Check the network master’s +/- terminals for correct voltages to ground (approx. 2.5Vdc) and
connect the RS485 network cable to the network master’s RS485 port
At each device assign an individual address and the baud rate specific to the network. Write the
changes, eXit the terminal application and remove the HPECOM cable
Verify network voltage at the RS485 connector (between +/- and ground) and connect to the
device. Communication can be verified by flashing of the red comms LED adjacent the 3
terminal RS485 connector). Frequency of comms LED flash is baud rate dependant. At higher
baud rates the LED flash may not be obvious, the LED appearing to be continuously on
Where a network runs between buildings and zero earth potential difference between individual
panel 24Vac power supplies cannot be guaranteed, we recommend that a repeater be used to
provide isolation of the sections of the network having differing earth potential

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Connections
Dimensions
If using HDA0002 DIN rail adapter brackets the overall depth from the gear plate to the front surface of
the device is 45.5mm

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Technical Data
RS485 Network Wiring
RS485 Comms Speed
RS485 Network Capacity
Power Supply
Conformity & approvals
Operating Temperature Range
Storage Temperature Range
Humidity Range
Dimensions
Shielded twisted pair (shield grounded)
Belden 9841 low capacitance twisted pair for RS485 networks
(braided + foil shield, shield continuous throughout the network and
grounded at network origin)
2400, 4800, 9600, 19200, 38400, 57600, 76800 baud
32 nodes over max. 1.2km without repeater
24Vac, 50/60 Hz, max. 7.5VA
0…50ºC (32…122ºF)
-5…75ºC (-40…167ºF)
10…95%rH (non-condensing)
126mm (W) x 107mm (H) x 34.5mm (D)
Ordering Information
HPE-BNSMA
Description: 250 point gateway – BACnet MS/TP integration of SMA protocol devices - for
control panel mounting
Standard package: 40 units per carton
Accessories
HDA0002 DIN rail adapter brackets, factory fitted
HPECOMU Configuration cable (USB <> RJ11)
HPECOM Configuration cable (DB9 <> RJ11)
U232-P9 RS232 (DB9) <> USB adapter cable
Other HP_BN Series Devices
HPC0662BN Universal Controller, 12 Point, BACnet MS/TP, 24Vac
HPC8884BN Universal Controller, 28 Point, BACnet MS/TP, 24Vac
HPD0440BNMR Network HMI / Universal Ctrl / Scheduler / Modbus RTU gateway
8 Point, BACnet MS/TP, 24Vac
HPD0460BN Network HMI, 12 Point, BACnet MS/TP, 24Vac
HPD0460BNC Network HMI / Universal Controller, 10 Point, BACnet MS/TP, 24Vac
HPD0460BNCT Network HMI / Universal Ctrl / Scheduler, 10 Point, BACnet MS/TP, 24Vac
HPD0460BNT Network HMI / Scheduler, 10 Point, BACnet MS/TP, 24Vac
HPE8884BN I/O expansion, 28 Point, BACnet MS/TP, 24Vac
HPV0662BN VAV / Universal Controller, 13 Point, BACnet MS/TP, 24Vac
HPE-BNMBUS BACnet gateway for M-Bus devices, 250 point, 24Vac
HPE-BNMOD BACnet gateway for Modbus devices, 250 point, 24Vac