Contemporary Controls Metasys JC-MER-CXB User manual

Metasys Ethernet Router
User Manual
#TD060100-0MA
Version 1.1
JC-MER-CXB

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Trademarks
Contemporary Controls, ARC Control, ARC DETECT and
EXTEND-A-BUS are trademarks or registered trademarks of
Contemporary Control Systems, Inc. ARCNET is a registered
trademark of Datapoint Corporation. Other product names may be
trademarks or registered trademarks of their respective companies.
Copyright
© Copyright 1998-2006by Contemporary Control Systems, Inc.
All rights reserved. Metasys®is a registered trademark of Johnson
Controls, Inc. © 2007Johnson Controls, Inc. No part of this
publication may be reproduced, transmitted, transcribed, stored in
a retrieval system, or translated into any language or computer
language, in any form or by any means, electronic, mechanical,
magnetic, optical, chemical, manual, or otherwise, without the prior
written permission of:
Contemporary Control Systems, Inc. Contemporary Controls Ltd
2431 Curtiss StreetSovereign Court Two
Downers Grove, Illinois 60515 USA Univ. of Warwick Science Park
Tel:[phone]Sir William Lyons Road
Fax: [phone] Coventry CV4 7EZ UK
E-mail:[e-mail] [phone]
WWW:http://www.ccontrols.com:[phone]
E-mail:[email protected]
Disclaimer
Contemporary Control Systems, Inc. reserves the right to make
changes in the specifications of the product described within this
manual at any time without notice and without obligation of
Contemporary Control Systems, Inc. to notify any person of such
revision or change.
Tel:
Fax:

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Contents
Chapter1 Introduction.........................................................6
Description ................................................................... 6
Specifications ............................................................... 7
Connector Information .................................................8
Mechanical Drawing .................................................... 9
Ordering Information .................................................. 9
Chapter2 Operation .......................................................... 10
Description ................................................................. 10
Theory of Operation.................................................... 11
Setup and Addressing........................................... 11
Protocols ............................................................... 11
Subnet Communication Upon
Network Failure.................................................... 12
Hardware Requirements ............................................. 12
Design Considerations................................................ 13
NCM Compatibility .............................................. 13
Quantity of Routers Needed ................................. 13
Physical Considerations ....................................... 13
Design Summary .................................................. 13
Design Restrictions .............................................. 15
Network Management Staff Involvement ............ 16
Metasys May Be Affected..................................... 16
Chapter3 InstallationandCommissioning........................17
Hardware Installation ................................................. 17
Configuring the JC-MER-CXB .................................. 21
Connecting Field Cables.............................................22
Reconfiguring the System .......................................... 24
Adding a New NCM or PMI/OWS to
an Existing Subnet ............................................... 24
Moving an Existing NCM or
PCI/OWS to a Different Subnet ........................... 25
Mounting ............................................................... 17
Powering ............................................................... 18
Indicator Lights and Booting ................................ 20
Bash Prompt & JC-MER-CXB Commands .......... 20
Adding a New Metasys ARCNET Subnet ................. 26
Changing the Ethernet Network ................................. 28
Changing the Layout of the Metasys Network .......... 28

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Chapter4 Troubleshooting ................................................30
Booting Up the Router ............................................... 30
Debugging Ethernet Failures..................................... 30
Ping Command .............................................. 32
Ipstat Command .............................................. 33
Testnet Command .......................................... 33
General Problem Prevention...................................... 33
Debugging ARCNET Failures .................................. 34
Debugging Router Failures........................................ 34
JC-MER-CXB Does Not Run When Booted ...... 34
Status Screen Indicates Failure Number 113 ...... 34
Status Screen Indicates Failure Number 101 ......34
Status Screen Indicates Invalid Messages...........34
Metasys Devices Do Not Respond.......................35
All the Devices on One ARCNET
Segment Do Not Respond ...................................35
Multiple ARCNET Segments
Do Not Respond ..................................................35
JC-MER-CXB Does Not
Respond to Ping Requests ...................................35
N1 Communications Are
Occasionally Unreliable ...................................... 36
Data Cannot Be Viewed on OWS
Across Network ...................................................36
Chapter5 Service ............................................................... 37
Warranty..................................................................... 37
Technical Support ...................................................... 38
Warranty Repair......................................................... 38
Non-Warranty Repair ................................................ 38
Returning Products for Repair................................... 39
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JC-MER-CXB Program (router) ............................ 42
Ethernet Communications Tests (testnet) .............. 42
Determining the MAC Address (getmac) ............... 42
Configuration Download (download) .................... 43
Software Switches ................................................... 43
Appendix C: Statistics Screen Information .................... 46
Figures
1:RJ-45 Connector ......................................................... 8
2: 3-Pin Connector .......................................................... 8
3: DB9 Connector ........................................................... 8
4: Null-Modem Cable Wiring .........................................8
5: JC-MER-CXB Dimensions ......................................... 9
Tables
1: Common Ethernet Errors ........................................... 32
Appendices Appendix A: Metasys Router Planning Forms............. 40
Appendix B: Common Commands and
Software Switches.................................................. 42
6: Sample Layout of Metasys Ethernet Router ............. 14
7: Using the Panel-Mounting Brackets ......................... 17
8: DC Powered .............................................................. 18
9: Redundant DC Power ............................................... 18
10: AC Powered ............................................................ 19
11: AC Power with Grounded Secondary ..................... 19
12: AC Power with Battery Backup .............................. 19
13: Bash Prompt for the JC-MER-CXB ........................ 20
14: Configuration Screen .............................................. 21
15: Statistics Screen available at COM2 .......................31
16: Example of Testnet Results Screen .........................42
17: Example of Statistics Screen ................................... 46
Appendix G: Linux Trademark Information .................. 50
Appendix D: Setting Up HyperTerminal ....................... 47
Appendix E: Field Connections ......................................48
Appendix F: UDP Port Address Assignments ............... 49
Other Linux Commands .......................................... 45
FTP Files from JC-MER-CXB ................................ 45

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1Introduction
Description
The Metasys Ethernet Router (JC-MER-CXB) provides either router
or gateway connectivity between ARCNET and Ethernet networks.
Sometimes in router/gateway applications, a desktop PMI/OWS
compatible computer is dedicated to the task of executing the applica-
tion program from either a hard disk or floppy disk. On the PMI/OWS
motherboard, two network interface modules are used to connect to
the two networks of interest. With the JC-MER-CXB, this same
functionality can be provided in a compact and reliable configuration.
On the front panel of the JC-MER-CXB is a BNC connector for the
ARCNET and an RJ-45 connector for the Ethernet.
Resident in the JC-MER-CXB is an embedded computer with a solid-
state flash disk capable of executing anapplication program. This user-
supplied application program routespackets between ARCNET and
Ethernet networks that utilize the same network layer or serve as a
gateway between different protocols used by the ARCNET and
Ethernet networks. For example, a popular transport layer for
Ethernet is TCP/IP. To route between ARCNET and Ethernet at the
network layer (IP), ARCNET would need to be operating a TCP/IP
stack as well. For all other situations where different higher-level
protocols are involved, a gateway program would be needed to effect
connectivity between ARCNET and Ethernet. Either situation can
be addressed by the JC-MER-CXB.
To provide ARCNET-to-Ethernet connectivity within a Metasys
system, the JC-MER-CXB was created by installing the necessary
application program onto the flash disk. This product replaces the
JC-MH-16, JC-EP-RG and JC-EP-CS version or model of the
Ethernet router. To configure the JC-MER-CXB, a laptop computer
running a terminal emulation program, like HyperTerminal, is
attached to one of the COM ports using a null-modem cable. Once
configured, the program runs continually.

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Electrical
SPECIFICATIONS
DC AC
Input voltage: 10–36 volts 8–24 volts
Input power: 8 W 8 VA
Input frequency: N/A 47–63 Hz
Environmental
Operating temperature: 0°C to +60°C
Storage temperature: –40°C to +85°C
Humidity: 10% to 95%, non-condensing
Shipping Weight
1 lb. (.45 kg)
Compatibility
ANSI/ATA 878.1 and IEEE 802.3
Regulatory Compliance
CE Mark
CFR 47, Part 15 Class A
UL 508 Listed Device
LED Indicators
Status — multicolor (see page 20for details)
ARCNET Ethernet
RX — green LINK/ACT — green/yellow
ACT — yellow DUP — green/yellow
Ethernet Data Rates
10/100 Mbps
ARCNET Data Rate
2.5 Mbps
cUL 22.222 #14
(intended for use with Class 2 circuits)

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Figure 4— Null-Modem Cable Wiring
Connector Information
Ethernet Socket Pin Assignments (RJ-45 Connector)
1 TD+
2 TD–
3 RD+
6 RD–
(all other pins are unused)
Figure 1 — RJ-45 Connector
ARCNET Socket Pin Assignments (RJ-45 connector)
4 Line – (Phase B)
5 Line + (Phase A)
(all other pins are unused)
ARCNET Socket Pin Assignments (3-pin screw terminal connector)
485 485X
SH Shield Shield
B Line – Line
A Line + Line
Figure 2 — 3-pin Connector
COM1 & COM2 Pin Assignments (DB9 connectors)
PIN Signal Function
2 RXD Receive Data
3 TXD Transmit Data
5 GND Ground
(all other pins are unused)
Figure 3 — DB9 Pins
COM1 & COM2 EIA-232 Communication Parameters (DB9 connectors)
Baud Rate 57,600 bps
Data Bits 8
Parity
No Parity
1
Stop Bit

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Metasys Ethernet Router OrderingInformation
Mechanical
Figure 5— JC-MER-CXB Dimensions
JC-MER-CXB Coaxial Cable Dipulse Transceiver
ELECTROMAGNETIC COMPATIBILITY
JC-MER-CXB units comply with Class A radiated and conducted
emissions as defined by CFR 47, Part 15 and by EN55022. This
equipment is intended for use in non-residential areas.
Warning
This is a Class A product as defined in EN55022. In a domestic
environment this product may cause radio interference — in which
case the user may be required to take adequate measures.

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2Operation
Description
The JC-MER-CXB integrates Metasys N1 LAN segments with an
Ethernet network that uses the TCP/IP (Transmission Control
Protocol/Internet Protocol) suite. The router provides the physical
connection between a Metasys ARCNET segment and the Ethernet
network. It takes advantage of a customer’s existing Ethernet
network, while maintaining the dedicated Facility Management
System (FMS) communications necessary for complex, time-critical,
local control strategies.
With the JC-MER-CXB, Metasys controllers communicate transparently
over Ethernet, using standard components and maintaining complete
compatibility with existing network equipment. From an operator’s
view, this coupling of the N1 LAN to Ethernet creates a single large
network. No special commands are necessary to switch between
networks; data automatically transmits between networks without
operator knowledge or intervention.
The JC-MER-CXB communicates over an Ethernet network using the
TCP/IP protocol. Two networked JC-MER-CXBs pass ARCNET
data between themselves using the User Datagram Protocol (UDP)
service provided by TCP/IP. On the Ethernet network, the router is
seen as a workstation passing messages to another workstation. If a
power failure occurs, the router automatically restarts communications
once power is restored.
The JC-MER-CXB is derived from an earlier version of this device that
was an expansion module that occupied two slots of a Contemporary
Controls MOD HUB ARCNET Modular Active Hub. The new device
can be powered from an available low-voltage source or with an
optional wall-mount transformer. The ARCNET and the Ethernet
connectionsare made through portson the front panel of the device.
Unlike a PMI/OWS, the JC-MER-CXB has no monitor or keyboard.
Instead, the monitor/keyboard functionality is done by an external
laptop or desktop computer running a terminal emulation program (like
HyperTerminal), while connected to COM ports on the JC-MER-CXB.