Distech Controls EC-BOS-8 User Manual

4
NOTE: Horizontal mounting is strongly recommend-
ed, to achieve maximum heat dissipation and meet the
operating temperature upper limit. Any other mounting
orientation reduces this upper limit.
Mounting On DIN Rail, see images
2
,
3
1
Pull the controller’s locking clip down.
2
Tilt the controller to hook over the DIN rail.
3
Push down and in on the unit to fasten to the rail.
4
Push the locking clip up to secure.
5
Mount any option module onto the DIN rail in the
same way. Slide the module rmly into the control-
ler’s connector to seat.
6
Repeat for other modules as needed (4 maximum).
7
Carefully secure both ends of the nal assembly with
DIN rail end-clips provided by the DIN rail vendor.
Wiring
Communications Wiring, see image
4
Field communications ports are as follows:
1
RS485 ports and bias switches.
2
WLAN adapter, settings switch, and antenna.
3
Ethernet ports, 10/100-Mbit, RJ-45.
4
Earth ground and 24V power input.
WLAN
NOTE: WLAN is not supported for EC-Net
AX
.
An integral WLAN adapter provides wireless connectiv-
ity using the IEEE 802.11a/b/g/n standard, and provides
an RP-SMA coax antenna connector.
e WLAN conguration switch sets operation as
follows:
• OFF - (Default, middle) WLAN adapter is disabled.
• ACC - Controller provides operation as a WLAN
access point for up to 16 clients.
• CLT - Controller operates as a client to an existing
802.11a/b/g/n router or access point.
Refer to the document EC-BOS-8 WiFi Guide for details
on WLAN conguration and factory-default IP settings.
RS485 Wiring, see image
5
On the controller’s top side, two RS485 ports operate as
COM1 and COM2. Each port is capable of up to 115,200
baud, and uses a 3-position, screw terminal connector.
NOTE: IO modules and access modules all need to be on
an RS-485 network.
Use shielded, twisted-pair, 18-22 AWG cabling to wire in
a continuous multidrop fashion to other RS485 devices:
“minus to minus”, “plus to plus,” and “shield to shield.”
Connect the shield wire to earth ground at one end only.
Image
5
shows example wiring.
1
RS485 port A (COM1) is oen used to support a
trunk of IO-R modules. NOTE: Do not mix IO-R
modules with other types of RS485 devices on the
same RS485 trunk.
2
RS485 port B (COM2) supports a network of eld
devices using RS485 communication. Additional
RS485 COM ports (COM3+) may be added, with
port numbering dependent on devices added to
each unique system. For example, an EC-Net Access
network includes the following:
– Access network (COM2 default)
– NRIO network
3
NOTE: RS485 devices on the same network should
use the same protocol and baud rate. Number of
devices supported depends on device specications.
RS485 bias switches
Each RS485 port has an adjacent 3-position biasing
switch. Settings of each RS485 bias switch are:
• BIA - (middle, as-shipped setting) RS485 biasing.
2.7K bias resistors with no termination resistor.
• END - RS485 biasing and a termination: 562 Ohm
bias resistors and 150 Ohm termination resistor.
• MID - RS485 biasing or termination: 47.5K bias
resistors with no termination resistor.
Oen, adding RS-485 biasing can improve communica-
tions by eliminating indeterminate idle states.
See EC-BOS-8 Mounting and Wiring Guide for more
details on RS485 biasing. Each RS485 port has two LEDs.
See the “Status LEDs” section for more information.
Ethernet Wiring, see image
4
Two RJ-45 10/100-Mbit Ethernet connectors are labeled
PRI (LAN1) for primary, and SEC (LAN2) for second-
ary. Use a standard Ethernet patch cable to an Ethernet
switch.
e factory-default IP address for PRI is 192.168.1.140.
e default subnet mask is 255.255.255.0. By default, the
SEC (LAN2) port is disabled.
Refer to the EC-BOS-8 Install and Startup Guide for de-
tails on the soware conguration of the Ethernet ports.
Earth Ground & Power
Earth grounding provides protection from electrostatic
discharge or other forms of EMI.
NOTE: Depending on power source used (image
6
).
2.1
(AC): Dedicated 24V transformer required, with
neither side of the transformer secondary tied to
ground.
2.2
(DC): Polarity is unimportant (uses onboard diode
bridge), with neither leg tied to ground.
2.3
(Wall-mount AC adapter, WPM- 8000) instead of
wiring 24V to 2-position connector.

Distech Controls EC-BOS-8 Specifications

General

Brand	Distech Controls
Model	EC-BOS-8
Category	Control Systems
Language	English