2.2.2.1
Integration with a bus communication
system provided by others
2.2.2.1.1 LonWorks LON-FTT10 interface module
Connecting data cables
Fig. 11: Wiring the LonWorks interface card
①
Bus cable
②
LON A
③
LON B
④
SH (shield)
The LonWorks interface card has terminals for two bus
cables of a LonWorks network. Depending on the net-
work topology, controllers at the end of a chain may be
connected to one bus, controllers at other positions in
the chain may be connected to two buses.
1.
Strip the insulation from the bus cable (at least
two wires), insert the bare wires into the terminals
and tighten the screws by hand.
2.
Fix the bus cables to the casing using the wire
clamping bracket.
3.
Connect the shield to the SH terminals.
Note:
Within a chain (channel) connect the shield
only at one point to the earth. Earthing the shield
at every controller will lead to voltage distur-
bances.
4.
To avoid reflections at the end of a chain
(channel), use a terminal resistor.
Recommended bus cables
Bus cables to TIA 568A, category 5
Belden 8471 or 85102
Cables to DOCSIS specification level IV
JY(St)Y 2×2×0.8 (use only twisted pair for LON-A
and LON-B)
Commissioning
Personnel:
Network administrator
Materials:
Software, e.g. Echelon or LonMaker
Application software, download from
www.troxtechnik.com
1.
Commissioning:
Press the service pin push
button and download the application software for
the LonWorks node.
2.
Binding:
Create the logical bindings for the net-
work variables to be transferred by the LonWorks
interface card (expansion module). As an alterna-
tive, use polling.
3.
Configuration:
If necessary, adjust the configura-
tion.
4.
Configure data points
2.2.2.1.2 BACnet MS/TP or Modbus RTU interface
card
Connecting data cables
Fig. 12: Wiring the BACnet MS/TP or Modbus RTU
interface card
①
Bus cable
②
B+ (EIA-485)
③
A- (EIA-485)
④
SH (shield)
The interface card has terminals for two cables of an
EIA-485 network. A maximum of 32 units can be oper-
ated on one network segment.
Making electrical connections
FSL-CONTROL II communication > Network with several control zones
Single room control system FSL
‑
CONTROL II
14