• Set a unique and sequential device address for each of the field controllers connected on the
system bus or zone bus, starting with device address 4. To ensure the best bus performance,
set sequential device addresses with no gaps in the device address range (4, 5, 6, and so on).
The controllers do not need to be physically connected on the bus in their numerical device
address order.
Note:
The ZEC510 uses a single 8-way DIP switch to set the address. The switch is binary
weighted, so you can set addresses from 4 to 127. The DIP switch block has eight switches
numbered
128
,
64
,
32
,
16
,
8
,
4
,
2
, and
1
. Calculate the address number by adding the values
of the switches set to
ON
. The sum of the switches in the
ON
position equals the address. For
example, if switches 1, 4, and 16 are set to
ON
, 1 + 4 + 16 = address 21. See Figure 19.
To set the device addresses on the ZEC510, complete the following steps:
1. Set all of the switches to the off position on the DIP switch block.
2. Set the highest number switch that is less than or equal to the intended device address to
ON
.
Note:
The highest address that you can set is 127, so ensure that DIP switch
128
is
OFF
.
3. Continue setting lower numbered switches until the total equals the intended address.
4. Write each field controller’s device address on the white label below the DIP switch block on
the cover of the controller.
Refer to the
Verasys BACnet MS/TP Communications Technical Bulletin (LIT-12012362)
for more
information on field controller device addresses and how to set them on MS/TP bus devices.
Figure 19: Setting the device address on the DIP switch block
Accessories
Table 15: Accessories
Product Code
Number
Description
Zone CO
2
sensor
NS-BCN7004-0
BACnet network CO
2
sensor designed to function directly with Johnson
Controls
®
BACnet MS/TP digital controllers, in a 80 mm x 120 mm (3 in. x 4.5
in.) enclosure with terminal block and modular jack wiring connections.
You can configure addresses 212 to 219.
Zone Temperature sensors (NS sensors)
NSB8BTN240-0
Network sensor, 120 x 80, Johnson Controls logo, local setpoint, white
NSB8BTN241-0
Network sensor, 120 x 80, no logo, local setpoint, white
NSB8BTN242-0
Network sensor, 120 x 80, Johnson Controls logo, no setpoint, black
NSB8BTN243-0
Network sensor, 120 x 80, no logo, no setpoint, black
27
Verasys ZEC510 VAV Controllers Installation Guide
