IntesisBox
®
BACnet
– RAC, FD, KX6 and KXR6 (VRF) series
User Manual r1.0 eng
URL
tel
http://www.intesisbox.com
[email protected]
+34 938047134
50/60
© Intesis Software S.L.U. - All rights reserved
IntesisBox
is a registered trademark of Intesis Software SLU
Connect to BACnet MS/TP
Connect the EIA485 bus wires to the plug-in terminal block (EIA485) of MH-RC-BAC-1; respect the polarity on this
connection (A+ and B-).
Connect the ground signal to the plug-in terminal block (SG).
Respect the maximum distance of 1.200 meters for the bus, no loop or star topologies are allowed for EIA485 bus.
Remember that a terminator resistor of 120
Ω must be present at each end of the bus to avoid signal reflections and
also a polarization mechanism. Please, use switch
SW1
in order to configure these parameters.
Binary value
b
2
…b
0
Decimal
value
Switches
1 2 3
Description
0xx
0
x x
EIA485 bus without termination resistor. The gateway is not at one end of the EIA485 bus
(default value)
1xx
1
x x
120
Ω termination resistor active. The gateway is at one end of the EIA485 bus
x00
0
x
No bus polarization
x11
3
x
Bus polarization active
Please, check as well configuration on
SW2
and
SW3
before connecting to BACnet MS/TP.
6.2.1 MS/TP MAC address switch configuration
MAC address can be configured using
SW2
DIP-Switch
Binary value
b
7
…b
0
Decimal value
Switches
1 2 3 4 5 6 7 8
MAC address
0000000x
0
x
0
1000000x
1
x
1
0100000x
2
x
2
1100000x
3
x
3
….
….
….
…
1011111x
125
x
125
0111111x
126
x
126
1111111x
127
x
127
The MAC address selected my affect on the Device Instance. If
the “Auto Device Instance” is used, keep in mind that
the Device Instance will be build using the
“Device Instance Base” + the address selected in SWP2 P1-P7. Please,
check section 7.5 for more information.
6.2.2 MS/TP activation and baudrate
Select the right baudrate for BACnet MS/TP communication using switch
SW3
.
* Note: If Autobaudrate is selected, the MH-RC-BAC-1 will look for another BACnet MS/TP device with a fixed baudrate in order
to match this value. Once detected, the baudrate will not be modified until a device reset is produced.
Binary value
b
7
…b
0
Decimal
value
Switches
1 2 3 4 5 6 7 8
Description
0xxxxxxx
0
x x x x x x x
BACnet MS/TP active (default value)
1xxxxxxx
1
x x x x x x x
BACnet IP active
x000xxxx
0
x
x x x x
Autobaudrate (default value) *
x100xxxx
1
x
x x x x
9600 bps
x010xxxx
2
x
x x x x
192000 bps
x110xxxx
3
x
x x x x
38400 bps
x001xxxx
4
x
x x x x
57600 bps
x101xxxx
5
x
x x x x
76800 bps
x011xxxx
6
x
x x x x
115200 bps
x111xxxx
7
x
x x x x
Autobaudrate *
xxxx0xxx
0
x x x x
x x x
Celsius degrees (default value)
xxxx1xxx
1
x x x x
x x x
Fahrenheit degrees
Important
: Remember that switch changes only apply after an IntesisBox power cycle