CET PMC-1304-3 User manual

PMC-1304-3
Communications Processor
User Manual
Version: V1.0
July 26, 2016
Ceiec Electric Technology

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This manual may not be reproduced in whole or in part by any means without the express
written permission from Ceiec Electric Technology (CET).
The information contained in this manual is believed to be accurate at the time of
publication; however, CET assumes no responsibility for any errors which may appear here
and reserves the right to make changes without notice. Please consult CET or your local
representative for the latest product specifications.

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DANGER
Failure to observe the following instructions may result in severe injury or
death and/or equipment damage.
Before connecting the device to the power source, check the label of the device
to ensure that it is equipped with the appropriate power supply.
Under no circumstances should the device be connected to a power source if it
is damaged.
Make sure the device is mounted to a well-grounded mounting surface.
To prevent potential fire or shock hazard, do not expose the device to rain or
moisture.
DO NOT open or repair the device under any circumstances, unless it is
clearly specified in the manual.

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Limited warranty

Ceiec Electric Technology (CET) offers the customer a minimum of 12-month
functional warranty on the device for faulty parts or workmanship from the
date of dispatch from the distributor. This warranty is on a return to factory
for repair basis. 
CET does not accept liability for any damage caused by device malfunctions.
CET accepts no responsibility for the suitability of the device to the
application for which it was purchased. 
Failure to install, set up or operate the device according to the instructions
herein will void the warranty. 
Only CET’s duly authorized representative may open your device. The unit
should only be opened in a fully anti-static environment. Failure to do so
may damage the electronic components and will void the warranty. 


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Table of Contents
Table of Contents ..................................................................................................................................... 5
Chapter 1 Introduction ............................................................................................................................ 7
1.1 Overview ..............................................................................................................................7
1.2 Features................................................................................................................................7
1.3 Typical Applications...............................................................................................................8
1.3.1 Single Networking ......................................................................................................8
1.3.2 Dual Networking ........................................................................................................9
1.4 Getting more information ................................................................................................... 11
Chapter 2 Installation ............................................................................................................................12
2.1 Appearance ........................................................................................................................ 12
2.2 Unit Dimension ...................................................................................................................12
2.3 Mounting............................................................................................................................12
2.4 Power Supply Wiring........................................................................................................... 13
2.5 Chassis Ground Wiring ........................................................................................................14
2.6 Ethernet Port Wiring........................................................................................................... 14
2.6.1 Straight through Connection .................................................................................... 14
2.6.2 Cross-over Connection .............................................................................................15
2.7 Serial Port Wiring................................................................................................................ 15
2.7.1 P3 (RS-422/485) Wiring ............................................................................................. 15
2.7.2 P4/P5/P6 (RS485) Wiring...........................................................................................16
Chapter 3 Operating the PMC-1304-3 ...................................................................................................17
3.1 LED Indicators ..................................................................................................................... 17
3.2 Reset Button ....................................................................................................................... 17
Chapter 4 Configuring the PMC-1304-3 via the Web Console.............................................................. 18
4.1 On-line Web Console Login .................................................................................................18
4.2 Off-line Web Console Login ................................................................................................. 20
4.3 Web Interface .....................................................................................................................21
4.3.1 Device Settings......................................................................................................... 21
4.3.2 Channel Management ..............................................................................................24
4.3.3 Data Cache Management ......................................................................................... 31
4.3.4 System Maintenance ................................................................................................ 35
Chapter 5 Modbus Register Map........................................................................................................... 40
5.1 Analog Input Register .......................................................................................................... 40
5.2 Digital Input Register........................................................................................................... 40
5.3 Energy Register ...................................................................................................................41
5.4 Remote Control................................................................................................................... 41
5.5 SOE.....................................................................................................................................41
5.6 Time ................................................................................................................................... 42
5.7 Data Recorder Log............................................................................................................... 42
5.8 Historic SOE Log .................................................................................................................. 43
5.9 WFR Log .............................................................................................................................44
5.10 Device Information............................................................................................................ 45

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Appendix A Technical Specifications ..................................................................................................... 47
Appendix B Standards Compliance ....................................................................................................... 49
Appendix C Ordering Guide ...................................................................................................................50
Contact us .............................................................................................................................................. 51

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Chapter 1 Introduction
This manual explains how to use the PMC-1304-3 Communications Processor. Throughout the
manual the term “PMC-1304-3” generally refers to all models. Differences between models are
indicated with the appropriate model number.
This chapter provides an overview of the PMC-1304-3 Communications Processor and summarizes
many of its key features.
1.1 Overview
The PMC-1304-3 is the ideal embedded equipment for connecting RS-422 or RS-485 enabled serial
devices to an IP-based LAN, making it possible for SCADA or other applications to access serial devices
over a LAN for monitoring and control applications. The PMC-1304-3 has been specifically designed
with industrial automation in mind and therefore provides un-surpassed performance and reliability
under the harshest industrial environments. The basic Model, PMC-1304-3-T, provides Modbus
Gateway function from Modbus TCP to RTU and supports interrogation from multiple Modbus
Masters. The optional RTU Model, PMC-1304-3-R, provides Modbus Mastering capability with local
data caching and logging to enhance overall system performance and redundancy. Not only does the
RTU Model support the polling of Real-Time data, it also supports the uploading of Data Logs, Event
Logs and Waveform Logs for CET devices that provide these advanced capabilities.
The PMC-1304-3 comes with Tx/Rx LEDs for the serial ports on the front panel. The LEDs not only
indicate the network status but also help to monitor the communications activities of the attached
serial devices.
The PMC-1304-3 can be setup through its user-friendly web console.
1.2 Features
Dual 10/100BaseT (RJ45)
Standard 2Xrs-485, optional 4Xrs-485
Basic Model
Modbus Gateway function for 32 Slave IEDs per RS-485 or a maximum of 128 Slave IEDs per
device
RTU Model
Modbus Mastering, Local Data Caching and logging for 64 Slave IEDs per RS-485 port or 256
Slave IEDs per device for a maximum of 25,600 data points.
2GB On-Board Log Memory, sufficient for storing data @ 60-minute interval for 900 days
Scheduled uploading of Data Log in CSV format to an external FTP Server
The PMC-1304-3 is designed to withstand the harshest industrial environments
15kV (contactless) & 6kV (contact) ESD protection and 3kV isolation protection for all Serial
signals
1.5kV isolation protection for Ethernet ports
Simple port configuration via its built-in web interface
DIN-Rail or Surface Mounting

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Models and Functions
Supported
1.3 Typical Applications
The PMC-1304-3 is an ideal instrument to connect serial devices to an IP based Ethernet LAN for any
industrial automation systems that require insulation protection as well as high reliability. With its
built-in dual Ethernet ports, the PMC-1304-3 is capable of operating under a Single Networking or
Dual Networking architecture.
1.3.1 Modbus TCP to RTU Gateway
The PMC-1304-3 supports the Modbus TCP to RTU Gateway function that makes it extremely simple
for any Modbus TCP Master Application to interface with Modbus RTU enabled IEDs over a local area
network. A simple web-based interface allows the users to easily configure the TCP to RTU address
mapping as well as which downstream RS-485 port the Slave IEDs are located.
Notes for Basic Model:
32 Slave IEDs per RS-485 port or a maximum of 128 Slave IEDs per device
4 Modbus Masters per device
Figure 1-1 Modbus RTU to TCP Gateway
Functions
PMC-1304-3 Models
T
RTU
Modbus Gateway


Data collecting and Transmission


Local Data Logging

Data Storing

FTP/Uploading CSV Files

Offline Configuration

Online Configuration


Online Debugging


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1.3.2 Multiple Modbus TCP Masters Support
The PMC-1304-3 supports multiple Modbus TCP Master simultaneously to facilitate information
sharing while minimizing the implementation cost. For highly data or communication intensive
applications. The RTU Model is recommended.
Notes for RTU Moles:
64 Slave IEDs per RS-485 port or a maximum of 256 Slave IEDs per device
16 Modbus Masters per device
Figure 1-2 One PMC-1304-3 Serving 3 Modbus Masters Simultaneous
1.3.3 Data Logging
The RTU Model supports embedded Modbus RTU mastering as well as Local Data Caching and Data
Logging of real-time parameters from Slave IEDs for a maximum of 25,600 data points. The device
can be configured to perform data logging from 1-minute to 60-minute intervals. With its large
on-board non-volatile Log Memory, the device is capable of storing interval. These features enhance
the overall system performance and reliability, reduce the CPU loading of the Head-End applications
such as EMS, BMS or SCADA and provide an extra level of data redundancy for IEDs without any
on-board memory.

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Figure 1-3 Multi-site Data Collection through 3G/4G Modems
In addition, the RTU Model may be deployed as a stand-alone Data Logger without any Head-End
systems in a Local Area Network or in remote locations when it’s paired with an external 3G/4G
modem. The RTU Model’s FTP allows manual access and uploading of historical information in
zipped CSV format. This versatile function allows users to perform simple data logging of Slave IEDs
locally or remotely without any expensive software.
Not only does the RTU Model support Modbus Slave Devices from CET, it can also support the Modbus
RTU Mastering of practically and 3rd party Modbus IEDs with customized device drivers.
Figure 1-4 Stand-alone Data Logger Application
1.3.4 FTP Client Support
The RTU Model can be configured as an FTP Client to push the most recent data log files in CSV format
to an external FTP Server over an intranet or internet at pre-determined intervals from hourly to
weekly. This is especially useful for distributed or remote Energy Management applications where
real-time data update is not required. The log files will be deposited at the FTP Server at scheduled
intervals which can then be processed by 3rd party applications.

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Figure 1-5 Data Push to FTP Server in CSV Format
The table below lists the PMC-1304-3’s various historical data as per configured recording intervals
which can be implemented by IBD_admin, please contact your local CET Representatives for authority
for further configuration.
1.4 Getting more information
Additional information is available from CET via the following sources:
Visit www.cet-global.com
Contact your local representative
Contact CET directly via email or telephone
Recording Interval ()
Historical Data (Days)
1
15
5
60
10
120
15
180

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Chapter 2 Installation
2.1 Appearance
Figure 2-1 Appearance
2.2 Unit Dimension
Front View
Side View
Top View
Figure 2-2 Unit Dimension
2.3 Mounting
The PMC-1304-3 should be installed in a dry environment with no dust and kept away from heat,
radiation and electrical noise source.
DIN-Rail Mounting
Installation step:

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Before installation, make sure that the DIN rail is already in place
Move the installation clip at the bottom of the PMC-1304-3 downward to the “unlock” position
Mount the PMC-1304-3 on the DIN rail
Push the installation clip upward to the “lock” position to secure the PMC-1304-3 on to the DIN
Rail
Figure 2-3 DIN-Rail Mounting
Surface Mounting
Installation steps:
Pre-drill the mounting holes based on the mounting diagram as shown in Figure 2-4
Fit the device through the cutout
Use four screws to fix the device tightly against the panel
Figure 2-4 Surface Cutout Mounting
2.4 Power Supply Wiring
Please consult the serial number label to ensure that the supply voltage is within the range of the
PMC-1304-3’s power supply specifications.
For AC supply, connect the live wire to the L/+ terminal and the neutral wire to the N/- terminal.
For DC supply, connect the positive wire to the L/+ terminal and the negative wire to the N/- terminal.

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Figure 2-5 Power Supply Connections
2.5 Chassis Ground Wiring
Installation:
Connect one end of the ground wire to the Chassis Ground terminal on the PMC-1304-3 using a
spade connector
Connect the other end of the ground wire to an Earth ground
Figure 2-6 Chassis Ground Connection
2.6 Ethernet Port Wiring
Connect one end of the Ethernet cable to PMC-1304-3 Ethernet port and the other end of the cable to
the Ethernet network.
Figure 2-7 RJ45 Connector
Pin
Meaning
1
Transmit Data+
2
Transmit Data-
3
Receive Data+
4,5,7,8
NC
6
Receive Data-
Table 2-1 RJ45 Connector Pin Description for 10/100BaseT Applications
2.6.1 Straight through Connection
A straight through RJ45 cable should be used if the PMC-1304-3 is connected to an Ethernet switch or
hub. The following figure illustrates the definition of an 8-pin RJ45 straight through cable. The
color-coded wires should be connected to the pins of the RJ45 connector as follows:

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Pin 1: Orange-White Pin 1: Orange-White
Pin 2: Orange Pin 2: Orange
Pin 3: Green-White Pin 3: Green-White
Pin 4: Blue Pin 4: Blue
Pin 5: Blue-White Pin 5: Blue-White
Pin 6: Green Pin 6: Green
Pin 7: Brown-White Pin 7: Brown-White
Pin 8: Brown Pin 8: Brown
Figure 2-8 Straight through Connection
2.6.2 Cross-over Connection
A cross-over RJ45 cable should be used if the PMC-1304-3 is connected directly to a PC’s Ethernet port.
The following figure illustrates the definition of an 8-pin RJ45 cross-over cable. The color-coded
wires should be connected to the pins of the RJ45 connector as follows:
Pin 1: Orange-White Pin 3: Green-White
Pin 2: Orange Pin 6: Green
Pin 3: Green-White Pin 1: Orange-White
Pin 4: Blue Pin 4: Blue
Pin 5: Blue-White Pin 5: Blue-White
Pin 6: Green Pin 2: Orange
Pin 7: Brown-White Pin 7: Brown-White
Pin 8: Brown Pin 8: Brown
Figure 2-9 Cross-over Connection
2.7 Serial Port Wiring
2.7.1 P3 (RS-422/485) Wiring
The P3 port of PMC-1304-3 can be used as a RS-485 or a RS-422 port. The following figure illustrates
the RS-422/485 communications connections on the PMC-1304-3:
Table 2-3 RS-422/485 Connection

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2.7.2 P4/P5/P6 (RS485) Wiring
The PMC-1304-3 provides three RS-485 ports (P4, P5 and P6). The following figure illustrates the
RS-485 communications connections on the PMC-1304-3:
Table 2-3 RS-485 Connection

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Chapter 3 Operating the PMC-1304-3
3.1 LED Indicators
There are 12 LED indicators on the PMC-1304-3’s front panel as described in the following table.
Table 3-1 LED Indicators
3.2 Reset Button
The front panel has a Reset button. Use a pointed object, such as a straightened paper clip or the tip
of a ball-point pen to access the Reset button.
Press and hold the Reset button for less than 5 seconds will cause the PMC-1304-3 to initiate a
reboot sequence. The reboot process would be completed when the Run indicator is off.
Press and hold the Reset button for longer than 5 seconds will lead the PMC-1304-3 to reset to
default, when the Alarm indicator will be on and off with 0.5 second interval, and then blinks for
three times.
LED Indicator
Color
Status
Description
RUN
Green
On
Abnormal Condition
Off
Not powered up or abnormal condition
Blinking
Working normally
Alarm
Red
On
Abnormal condition
Blinking
Restoring default parameters
P1/P2
Yellow
On
Connected but no data activities
Off
Disconnected
Blinking
Data activities
P3~P6
Rx
Green
Blinking
Receiving data
Tx
Yellow
Blinking
Transmitting data

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Chapter 4 Configuring the PMC-1304-3 via the Web Console
This section gives corresponding Web operations for the T Model and RTU Model.
For the T Model, there is only On-line Web Console that can be used to configure a
PMC-1304-3-T.
For the RTU Model, PMC-1304-3-R Web Console has two programming modes: On-Line and
Off-Line. The On-Line mode is used to query and configure a connected PMC-1304-3-R, while
the Off-Line mode is used to configure most of parameters for a PMC-1304-3-R without physically
connecting to the PMC-1304-3-R.
Web Console Menus and Models:
Available
4.1 On-line Web Console Login
1) Open your Internet Explorer with the scripting function enabled. To enable scripting for your
browser, right click on your Internet Explorer icon and select Properties from the pop-up dialog box.
The Internet Options window appears. Select the Security tab and then click on the Custom Level
button near the bottom of the window. The Security Settings window appears. Enable the three
options as shown below and then click OK.
Menus
PMC-1304-3 Models
1st level
2nd level
T
RTU
Device Settings
Network


Time

FTP Password

Channel Management
Channel Settings

Slave IED Management

Driver Management

Modbus Gateway


Serial Port

Data Cache Management
Cache Management

Data Cache

System Maintenance
Password Setup


Statistic

Clear History

Backup/Restore


System Information


Reboot



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2) The default IP Addresses of the PMC-1304-3’s two Ethernet Ports (P1 and P2) are 192.168.0.127 and
192.168.1.127, respectively. Configure the IP address of the PC to the same network segment as the
connected Ethernet port. For example, configure the IP Address and the Subnet Mask of the PC as
192.168.0.100 and 255.255.255.0 as shown below, if connected to Ethernet Port 1 192.168.0.127. If
connecting to Ethernet Port 2 of the PMC-1304-3, the PC’s IP address and Subnet Mask should be
configured as 192.168.1.100 and 255.255.255.0, respectively.
3) Enter the IP Address of the PMC-1304-3 in the Address input box of the Internet Explorer (IE) and
then press <Enter>. The default IP address is 192.168.0.127 for Ethernet 1 and 192.168.1.127 for
Ethernet 2.
4) The PMC-1304-3’s On-line Web Console’s Login page appears. Enter the User name and Password.
The default user name is “user”, and the default password is “123456”.

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4.2 Off-line Web Console Login
To run the PMC-1304-3 Off-Line Web Console, the program should be installed by double clicking the
“PMC-1304-3 Web Console Setup.exe”. After installation, double click the “PMC-1304-3_EN”to
open Off-Line Web Console. The PMC-1304-3’s Off-line Web Console’s Login page appears. Enter
the User name and Password. The default user name is “user”, and the default password is “123456”.
Click “Login”to choose the way to enter the Web Console.