Section 10 - Data Communications; General; Choosing A Poni; Mounting The Poni - Eaton MP-3000 Instruction Leaflet

SECTION 10 - DaTa COMMUNICaTIONS

10.0

General

Most MP-3000 settings and operating data can be viewed or changed
on the front-panel alphanumeric display. However, with the large vol-
ume of information and settings, many users find it more convenient
to view or manipulate the data on a host computer that has a large
graphic display.
The MP-3000 can communicate with Eaton PowerNet®, PowerPort®,
or host software via its communications port and an optional acces-
sory PONI module mounted on or near the back of the unit.
The MP-3000 can also be programmed via the front panel RS-232
port using PowerNet. However, using the RS-232 port disables PONI
and URTD communications.
PowerNet is a high speed, Ethernet based power management
system that networks state-of-the-art meters, relays, trip units, motor
protectors, starters, and transfer switch controllers for efficient energy
management, real-time monitoring, alarming, and trending of electrical
distribution systems.
PowerPort is free software that can be downloaded from the Eaton
web site at www.Eaton.com. PowerPort is a portable, scaled-down
version of the flexible and powerful PowerNet Power Management
Software. Whereas PowerNet communicates to multiple devices
over a network, PowerPort communicates to one device at a time
via a direct connection. With PowerPort, the User can configure a
single device and view both real-time and historical data from that
device. The physical connection between an MP-3000 and a personal
computer (PC) can be made by an I-PONI (refer to Subsection 10.2).
Either a MINT II or a PMCOM5 can be used to connect the INCOM
network to the serial port of a PC. For details, refer to Technical Data
Sheet TD.17B.01.T.E at the above web site.
In addition to monitoring and programming, PowerNet and PowerPort
can execute control through communications, including remote trip-
ping, resetting, and emergency override.
One particular logging function, the starting current profile display,
cannot be viewed on the MP-3000 relay front panel. The profile data
must be uploaded to a host computer using PowerNet, or PowerPort
after the motor start. PowerNet and PowerPort provide an informative
plot of the actual starting current curve, plotted along with the cold-
start protection limit curve, for checking of coordination. Profiles are
saved for the last four starts.
Older IMPACC systems do not directly support the MP-3000.
CaUTION
ThE MP-3000 WILL NOT COMMUNICaTE VIa PONIS WhEN ThE
RS-232 IS ENaBLED. TO aLLOW COMMUNICaTIONS, DISaBLE
ThE RS-232 SETPOINT.
10.1

Choosing a PONI

The PONI (Product Operated Network Interface) module is inter-
changeable among a number of available styles. It provides the
physical and electrical interface to several communications links or
networks. The MP-3000 can work with at least these PONI types:
• I-PONI–INCOM Network PONI - The recommended means
of connecting to the robust INCOM communications net-
work.
• RS-485-PONI - Allows the MP-3000 to communicate via
Modbus RTM over a standard RS-485 network.
MP-3000
• D-PONI - Allows the MP-3000 to communicate over the
DeviceNet at 125, 250, or 500 kilobaud.
• E-PONI - Ethernet PONI with 10BaseT or optical-fiber net-
work connections - for direct connection to a facility LAN that
ties the MP-3000 to a PowerNet host client computer.
Contact an Eaton sales engineer or the Power Management Products
factory for updated information on availability of PONI types.
Each type of PONI has its own instruction leaflet, with information on
mounting and connection.
10.2

Mounting the PONI

Attach the PONI to the back of the MP-3000 using the mounting
bracket supplied with the relay. If the URTD module is to be mounted
on the back of the relay, mount the URTD module with its own bracket
first. Then attach the PONI to the back of the URTD module without
the PONI mounting bracket. Figure 6.3 in Section 6 shows the depth
of the MP-3000, with or without the URTD module and PONI attached
to the back.
NOTE: Figure 6.3 applies to I-PONI, RS485-PONI, and D-PONI. The
E-PONI is 0.5 inch deeper than Figure 6.3 shows, as well as
having larger dimensions.
10.3

Connecting the PONI to the Relay

Each PONI type has a ribbon cable with a 9-pin D-sub connector. This
plugs into the mating 9-pin D connector above the right (rear view)
terminal block of the MP-3000. Secure the connection with the captive
screws.
The PONI gets its operating power from the MP-3000 through the rib-
bon cable.
NOTE: The E-PONI draws more power from the relay than the other
PONI types. This can reduce the ability of the MP-3000 to ride
through prolonged interruptions in the ac supply. Refer to Sec-
tion 9.3 for further details. If voltage interruption ride-through is
important and the E-PONI is used, power the E-PONI through
its external-power connector from a separate power supply.
This unburdens the MP-3000 power supply, and restores full
ride-through capability. Refer to E-PONI instructions for con-
nection information.
NOTE: PONIs can be "hot-plugged" (that is, connected or disconnect-
ed) with the MP-3000 powered. Hot-plugging may or may not
be allowed with various combinations of other communicating
products and PONI types. Check the instructions for each type
of device.
10.4

Connecting the PONI to the Network or host

Figure 10.1 shows an I-PONI. The INCOM network comprises a
shielded twisted-pair conductor that is daisy-chained from one com-
municating device to the next as shown. There is only one INCOM
network master, which is either a MINT (INCOM network to RS-232
port converter) or a CONI/CONI III (ISA card for PC with INCOM port
on the rear flange) or NetLink Device Server.
INCOM provides full galvanic isolation of every communicating device
from the network, and works reliably in noisy industrial environments.
Refer to IMPACC Systems Communications Manual I.L 17384. For
best results, follow the network wiring rules in the PONI I.L. and in the
IMPACC Wiring Specification T.D. 17513. Proper handling of shield
grounds is important to good noise immunity. However, do not ground
the shields everywhere.
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IM02602002E
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