Table of Contents
Advertisement
Chapter 4
Communications
Access to Sm@rt DAS breakers
Connecting to the breakers
One key benefit of Sm@rt DAS is it allows for direct access to
the breaker if the user wishes to make changes to trip unit
settings, get status etc. It is possible to gain network access
two ways:
If information is needed for multiple upstream systems, a
network switch should be purchased with the Sm@rt DAS
system at time of order. Then gaining access is as easy as
plugging into the network.
If only one upstream system needs access, it is possible
to connect directly to the gateway over Ethernet.
MOXA
TP (RJ-45)
10/100 Mbps
S1
TO PLC
WLCBUSCABLE1
3
RS485
D+
4
D-
S1
5
GND
MB-MAIN
4000A
S1
LT1 & SS1
ADDRESS:1
1200A
MB-VL2
LT2 & SS2
S3
ADDRESS:2
Terminating Resistor Required
Figure 4.7: Sample of Breaker MODBUS address
18
RS-232
RS-422/485
V-
V+
12-48 VDC
Port 1
Port 1
MB3170
SHLD
R
B
C
#20
#20
#20
COM 16 MODULE
SEC. DISCONNECT X7
9L
5L
1L
SHL
9R
5R
1R
SHR
(REAR)
MODBUS
SHLD
R
B
C
SHD
#20
#20
#20
#20
C M-V L2
SHL
9L
5L
1L
MODB US
SHR
9R
5R
1R
(REAR)
120 OHM
1
2
RES
S3
**NOTE 2**:
at the End of Run
Trip unit data access
Direct access to the breaker is done by connecting through
the MODBUS RS-485 to TCP/IP gateway. The Sm@rt DAS
system uses the same IP address structure for each Sm@rt
DAS order unless otherwise specified.
The IP address for the first ten trip units is 192.168.0.75*. If
multiple controllers are on requested on same network at
time of order next 10 breaker IP addresses will be
192.168.0.77 (+.02). The slave address to each device is
documented on the drawings submitted with the switchboard
or switchgear. Figure 4.7 shows where the slave address is
documented on record drawings. The addresses start at one
and increment by one, top to bottom, left to right. See Figure
4.1 for details.
Refer to the Circuit Breakers with Communication Capability
SENTRON WL and SENTRON VL MODBUS System Manual for
register information. Breaker data can be accessed using
Sentron Power Config.
* If you have more than 10 devices and want external
network access, note that at order time.
X8-3
X8-4
CP
#18
#18
CB (REAR)
#18
#18
CUB
X8-1
X8-2
X15
Advertisement
Table of Contents
