Laars M4-LHS X-BAC BACnet Interface Module, M4-LHS Control Installation and Operation Manual
Below you will find brief information for BACnet Interface Module M4-LHS X-BAC. This device adds BACnet MS/TP communication capability to the Laars M4-LHS control, providing a connection between the control and a BACnet network. The module features LEDs that indicate communication status and is powered through the control's RJ45 connection.
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Installation and Operation Manual
Adds BACnet MSTP Capability to Laars M4-LHS Controls
Document 4233
X-BAC
BACnet Interface Module
X-BAC
BACnet Interface Module
MSTP
A GND B
1 2 3
PRODUCT
COMM
RS485
OUTPUT RATINGS:
120VAC, 6A RESISTIVE
1A PILOT DUTY, 15A TOTAL
FOR ALL CIRCUITS
INPUT RATINGS:
115VAC 60Hz , 30VA MAX
USE COPPER WIRE,
CLASS 1 WIRE ONLY.
PWR
L N
1 2
ENCLOSED
ENERGY
MANAGEMENT
EQUIPMENT
99RA
CAUTION: RISK OF ELECTRIC SHOCK
More than one disconnect switch may be required to de-energize the equipment before servicing.
SYS A B C D
3 4 5 6 7 8 9 10 11 12
M4-LHS
HYBRID CONTROL
C
D
A
B
PROGRAM RUN
13 mA
+
14
VLT
+
15 16 mA
+
17
VLT
+
18 19 20 21 22 23 24
DO NOT APPLY ANY VOLTAGE
TO INPUT TERMINALS
OUTDOOR
TEMP
T O
SYSTEM
TEMP
T O
PROVE
/DHW
O
SHUTDOWN
/TSTAT
/SETBACK
O
25 26 27 28 29 30 31 32
EXTENSION
MODULE
RS-485
To BACnet
MSTP
RJ45 Communication Cable
WArnIng
This control is strictly an operating control; it should never be used as a primary limit or safety control. All equipment must have its own certified limit and safety controls required by local codes.
The installer must verify proper operation and correct any safety problems prior to the installation of this control.
COnTenT
2
X-BAC BACnet Interface Module Installation and Configuration Manual
OvervIeW
The BACnet Interface Module adds BACnet MS/TP communication capability to the M4-LHS control. It does that by connecting to both, the control and the BACnet MS/TP network. All the BACnet settings are configured through the control. The BACnet
Interface Module has LEDs that can help in displaying communication status.
X-BAC
BACnet Interface Module
MSTP
A GND B
1 2 3
PRODUCT
COMM
RS485
Mounting
Tab
RS485 to EMS
Operation
LEDs
RJ45
Communication to Control
RJ11 to Extension
ITeM LIST
• X-BAC BACnet Interface Module,
• RJ45 cables (Ethernet Cable),
InSTALLATIOn
The BACnet Interface Module communicates with the M4-LHS control using the RJ45 cable. Thus, it needs to be installed in close proximity to the control.
• Mount the BACnet Interface Module on a flat surface next to the control.
• The module can be mounted horizontally or vertically.
• Keep the module away from extreme heat, cold, or humidity.
• Screw the module to the flat surface using the two side tabs with holes.
• No need to remove the BACnet Interface Module cover.
X-BAC
BACnet Interface Module
WIrIng
• No power wiring is required for the BACnet Interface Module. It gets its power through the control's
RJ45 connection.
• The module's MS/TP terminals are of the removal type. That facilitates easy wiring. Just unscrew the terminal block side screws to remove the full terminal block.
MSTP
A GND B
1 2 3
PRODUCT
COMM
RS485
BACneT MS/TP WIrIng
• Use 18# AWG Twisted Pair cable. The cable length must not exceed 3500 feet.
• Connect the MS/TP cable coming from the BACnet MS/TP network to the MS/TP terminals on the
BACnet Interface Module. Communication on the BACnet MS/TP network is polarity sensitive.
• The ground terminal (GND) MUST be connected to the BMS Ground.
To BACnet
MSTP
3
X-BAC BACnet Interface Module Installation and Configuration Manual
COnneCTIng TO COnTrOL
• The BACnet Interface Module communicates all of its information to the control using RJ45 cable (the cable is provided with the module).
• Both the BACnet Interface Module and the control have RJ45 sockets.
COnneCTIng TO exTenSIOn
• Unlike the heating control, the extension has a RJ11 Socket. In addition, each extension is packaged with an RJ11 cable to connect
to the control. See "Wiring to Control and Extension" on page 7.
4
X-BAC BACnet Interface Module Installation and Configuration Manual
BACneT STArTuP Menu SeTuP
-------- SETTINGS ----
Season Winter
System Target 140 F
<System Settings>
<Maintenance>
<System Startup>
BACK ▲ ▼ SELECT
-- ARE YOU SURE? --
No
Yes
BACK ▲ ▼ SAVE
---- BACNET ID ----
477000
[ ]
BACK ▲ ▼ SAVE
----MS/TP ADDRESS----
1
[ ]
BACK ▲ ▼ SAVE
--- BACNET MODE ---
Disable
Enable
BACK ▲ ▼ SAVE
- BACNET BAUDRATE -
9600
19200
38400
BACK ▲ ▼ SAVE
BACneT MODe
Enable, Disable
Button: MENU/<System Startup>/.... Sensor Fault/BACnet Mode
Default: Disable
• This menu option enables or disables the BACnet MSTP capability. When enabled, additional BACnet settings shall be available for further customizing.
BACneT BAuD rATe
9600, 19200, 38400 Default: 19200
Button: MENU/<System Startup>/.... Sensor Fault/BACnet Mode/BACnet Baudrate
• For the control to communicate over a BAcnet MS/TP network, it must use the same Baud rate as the rest of the network. The control offers three Baud Rates.
• If communication was not successful, the baud rate could be the cause. Check with the network administrator for the network baud rate. Then match it on the control.
MS/TP ADDreSS
1 to 127 Default: 64
Button: MENU/<System Startup>/.... /BACnet Mode/BACnet Baudrate/ MSTP Address
• Each device on the MS/TP network must have a unique address.
• This is the MS/TP address on a RS485 network. Its MS/TP range is 1 though 127.
• The MS/TP address must be provided by the Network Administrator.
BACneT ID
1 to 4,000,000
Button: MENU/<System Startup>/.... / MSTP Address / BACnet ID
Default:
• The BACnet ID is a unique 32 bit number that identifies the control within the BACnet network. No two ID shall be the same even if dealing across networks.
• It must be provided by the BACnet Network Administrator.
LeD
Yellow LED Flashes on communication between the BACnet Interface Module and the control.
Green LED
Red LED
Flashes on communication between the BACnet Interface Module and the
BACnet network.
Flashes steadily to indicate the BACnet Interface Module is operational.
--- BACNET MODE ---
Disable
Enable
BACK ▲ ▼ SAVE
- BACNET BAUDRATE -
9600
19200
38400
BACK ▲ ▼ SAVE
----MS/TP ADDRESS----
1
[ ]
BACK ▲ ▼ SAVE
[
---- BACNET ID ----
X-BAC
BACK ▲ ▼ SAVE
BACnet Interface Module
MSTP
A GND B
1 2 3
PRODUCT
COMM
RS485
5
X-BAC BACnet Interface Module Installation and Configuration Manual
TrOuBLeSHOOTIng nO LeD LIgHTS
• The RJ45 connection to the control powers the BACnet Interface Module. If all LEDs are off, then check the cable connecting the module to the control. The cable consist of 8 wires. Check each of the color-coded wires continuity in the cable using a continuity meter.
nO COMMunICATIOn
• Check the Yellow and Green LEDs. If the Yellow LED is continuously On or Off, then check the cable connecting the module to the control.
• If the Green LED is continuously On or Off, then check the cable connecting the module to the BACnet network.
SPeCIfICATIOn
Control Communication . . . . . . . . . . . . . . . . . . . . . . . . . . RJ45 to control (Cable is provided)
BACnet MS/TP Communication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-wire
Extension Communication. . . . . . . . . . . RS485 (RJ11) to Extension (Cable packaged with Extension)
LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Red, Yellow, and Green
Dimension . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-¾” x 3-⅝” x 1”
Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Pound
6
X-BAC BACnet Interface Module Installation and Configuration Manual
WIrIng TO COnTrOL AnD exTenSIOn
X-BAC
BACnet Interface Module
MSTP
A GND B
1 2 3
PRODUCT
COMM
RS485
OUTPUT RATINGS:
120VAC, 6A RESISTIVE
1A PILOT DUTY, 15A TOTAL
FOR ALL CIRCUITS
INPUT RATINGS:
115VAC 60Hz , 30VA MAX
USE COPPER WIRE,
CLASS 1 WIRE ONLY.
PWR
L N
1 2
ENCLOSED
ENERGY
MANAGEMENT
EQUIPMENT
99RA
CAUTION: RISK OF ELECTRIC SHOCK to de-energize the equipment before servicing.
SYS A B C D
3 4 5 6 7 8 9 10 11 12
M4-LHS
HYBRID CONTROL
A
B
C
D
PROGRAM
A
CUR / VLT
B
CUR / VLT
RUN
C
CUR / VLT
D
CUR / VLT
13 14 15 16 17 18 19 20 21 22 23 24
DO NOT APPLY ANY VOLTAGE
TO INPUT TERMINALS
OUTDOOR
TEMP
T O
SYSTEM
TEMP
T
25 26 27
O
PROVE
/DHW
O
SHUTDOWN
/TSTAT
/SETBACK
O
28 29 30 31 32
EXTENSION
MODULE
RS-485
To BACnet
MSTP
RJ45
Extension
RJ45 Communication Cable
RJ45 RJ11
PWR
L N
1 2
M4Ext
FULL MODULATION SEQUENCING EXTENSION
E
G
I
K
M
O
Comm
F
H
L
N
J P
Power
OUTPUT RATINGS:
120VAC, 6A RESISTIVE
1A PILOT DUTY, 15A TOTAL
FOR ALL CIRCUITS
INPUT RATINGS:
115VAC 60Hz, 12VA MAX
Use Copper Conductors Only.
CAUTION: Risk of Electric Shock.
More than one disconnect switch may be required to de-energize the equipment before servicing.
E K F L G M H N I O J P
3 4 5 6 7 8 9 10 11 12 13 14
Ext A Ext B
GND mA VLT
15 16 17 mA VLT
19 20 mA VLT
22 23 mA VLT GND mA VLT
25 26 27 28 29 mA VLT
31 32
RS-485
RJ11
RJ11 Extension Cable
X-BAC BACnet Interface Module Installation and Configuration Manual
7
20 Industrial Way, Rochester, NH 03867 • 603.335.6300 • FAX 603.335.3355
1355 Kuehner Drive, Simi Valley, CA 93063 • 800.900.9267 • FAX 800.559.1583 (Sales, Service)
1869 Sismet Road, Mississauga, Ontario, Canada L4W 1W8 • 905.238.0100 • FAX 905.366.0130
www.laars.com
Litho in U .S .A © Laars Heating Systems 0911 Document 4233
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Key Features
- Adds BACnet MSTP capability
- Connects to control and BACnet network
- LEDs for communication status
- Powered through control's RJ45
- Removable terminal block for easy wiring
- Supports 18# AWG Twisted Pair cable up to 3500 feet
- Configuration through the control's menu
- Supports Baud Rates: 9600, 19200, 38400
- Unique MS/TP Address and BACnet ID required
