Communication System Using A Laptop; Communication System - Eaton MPCV Series Instruction Booklet

Instructions for the Eaton Type
MPCV Network Protection Relay

Communication System Using a Laptop

Eaton has developed a means to interrogate an individual relay
using a laptop computer. This system permits a user to:
1. Review and change relay set points.
2. Monitor present rms values of voltages, currents,
phasing voltage values and breaker status.
3. Monitor symmetrical value of the phasing voltage and
phasing voltage angle.
Figure 7. PMCOM5 — mini-MINT
Using this communication system requires that the operator
have Eaton PowerPort
software can be downloaded at no charge from the Eaton
Web site at https://www.ch.cutler-hammer.com/pmp/Power-
Port.html.
Once into the CH site, select under products:
Power Management/Power Management Software/PowerPort
Software.
It requires that the MPCV Relay INCOM CODE set point
=1999. If it does not, the relay's communication has been
turned OFF.
It also requires the operator to have a PMCOM5 (mini-MINT,
see Figure 7), which converts the 33-bit messages used in the
INCOM protocol to and from 10 byte ASCII encoded RS-232
messages. The PMCOM5 requires an 115 Vac source.
The PMCOM5 comes with an RJ-11 phone jack connection
and a length of 4-conductor phone wire that connects to the
green 3-pin Phoenix connector located on the lower front
center of the MPCV Relay. An RS-232 cable completes the
connection from the PMCOM5 into the laptop.
The PowerPort program permits real-time monitoring of
the relay's rms measurable values. For safety, the Network
Breaker should first be opened then the Network Protector
enclosure door can be opened. The PMCOM5 can be powered
and connected to the laptop and the INCOM side connection
(phone wire) connected to the 3-pin Phoenix connector. Once
the PowerPort program is initialized and the monitor screen is
selected, actual rms values can be observed.
IB02402001E
Instruction for the
Cutler-Hammer Type MPCV
Network Protection Relay
software loaded on the laptop. This
For more information visit: www.EatonElectrical.com
Instruction Booklet IB02402001E
Effective: September 2004

Communication System

Eaton has developed an Integrated Monitoring Protection and
Control Communications, known as IMPACC specifically for
power distribution and industrial applications. It centers on
the Industrial communication (INCOM) chip, which employs
frequency shift key (FSK) technology and has the following
benefits:
1. Devices are easily "daisy chained" with inexpensive
shielded twisted pair cable.
2. Noise immunity and signal integrity verification to ensure
reliable data transfer.
3. Up to 1,000 devices are supported on Main Network.
4. Up to 99 devices are supported in Subnetwork.
5. Up to 1,000 devices may be monitored and controlled
from a single location.
6. Distances of up to 10,000 feet (3,048 m) are supported
without repeaters.
7. Polarity is not an issue when connecting wiring to
devices.
8. Wiring may be installed as close to power wiring in accor-
dance with NEC (or CSA ) and local safety codes.
9. Wiring may be installed in control and communication
cable trays and conduit in accordance with NEC (or CSA)
and local safety codes.
Since the MPCV Relay is an IMPACC compatible device,
communication is provided for the relay to remotely monitor
and control network protectors so valuable information can
be obtained for load flow analysis, reliability improvement,
maintaining highest level of protection, early detection
of potential service interruption through instantaneous alarm
notification, and safe maintenance operation while optimizing
the cost and benefits of electric services.
Protocol
The Eaton INCOM (INdustrial COMmunications) Network
is designed to provide two-way communication between a
network master and node devices such as breakers, digital
meters, motor overload relays, etc. Control and monitoring is
carried out over a network consisting of dedicated twisted
pair wires. The basis of this network is a semi-custom
integrated circuit that has been developed to provide a
simple, low-cost interface to the network. The INCOM com-
munications protocol is master/slave. An INCOM network can
have one master and up to 1,000 slaves. The INCOM commu-
nications protocol is based on 33-bit message packets. A typi-
cal INCOM network transaction consists of one or more 33-
bit message packets transmitted by the master, and one or
more 33-bit message packets transmitted by a slave in
response.
Any computer or programmable device with either an
RS-232c communications port or the PC XT/AT bus may
function as an INCOM network master. An RS-232c based
INCOM network master requires the use of a gateway device
such as the Eaton MINT (Master INCOM Network Translator).
The gateway device converts the 33-bit binary messages
used on the INCOM local area network to and from 10 byte
ASCII encoded hexadecimal RS-232c messages. An IBM
compatible personal computer with at least one available ISA
card slot can alternatively use the Eaton CONI (Computer
EaToN CoRPoRaTIoN www.eaton.com
Instruction Bulletin
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December 2010
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