User`s guide

Volume 3—Power Distribution and Control Assemblies CA08100004E—November 2013 www.eaton.com V3-T9-283
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9.5
Metering Devices, Protective Relays, Software and Connectivity
Connectivity Options
Technical Data and Specifications
Module Mounting
When mounting the
mMINT, verify that an
11 mm H x 28 mm W
DIN rail is used and that it is
within an enclosed space.
Simplified Wiring Rules
INCOM Network
The following simplified rules
apply to a given system
consisting of a single daisy-
chained main cable link
between master and slave
devices (see below). For
more complex considerations
including star configurations,
please refer to the IMPACC
wiring specification
T.D. 17513.
mMINT in a Communications Network
●
Recommended INCOM
cable styles are Belden
9463 or C-H style
2A957805G01
●
The maximum system
capacity is 10,000 feet of
communications cable and
32 slave devices on the
INCOM network under
the mMINT
●
Non-terminated taps, up to
200 feet in length, off the
main link are permitted,
but add to the total
cable length
●
Make sure that there is
twisted-pair wire that is
recommended for IMPACC
network use. Use shielded
twisted-pair wire to
connect each slave to the
INCOM network, daisy-
chain style. The polarity
of the twisted pair is
not important
Modbus RS-485 Network
The following simplified rules
apply to a given system
consisting of a cable link
between master and slave
devices (see below). For
more complex configurations,
please refer to standard
Modbus RTU wiring
specification rules for
the RS-485 network.
●
The recommended
Modbus cable has twisted-
pair wires (24 AWG
stranded 7x32 conductors
with PVC insulation) having
an aluminum/mylar foil
shield with drain wire
●
The maximum system
capacity is 4000 feet of
communications cable and
247 devices on the
Modbus RTU network
●
Make sure that there is
twisted-pair wire that is
recommended for Modbus
RTU network use. Use
shielded twisted-pair wire
to connect each slave to
the Modbus RTU network,
daisy-chain style. The
polarity of the twisted pair
is critically important
mMINT Module Dimensions
Burden
●
24 Vac/dc 3 VA
Communications Speed
■
INCOM: 1200, 9600 baud
●
N2 Bus: 9600 baud
Note: Contact Eaton for
availability and support for the
N2 Gateway.
Modbus RTU Serial Network
(Slave)
Modbus
mMINT
(Master)
Modbus
Master
INCOM Network
INCOM
Slaves
J1
J2
J3
4.25
(108.0)
RS-485
Modbus
3.54
(89.9)
24 – 125 Vdc
120 Vac
Shield INCOM
A B COM SHD