Chapter 9 • Communications and Networking
9-10
Rev. 6, March 2011
Part 17997
9.5.2
Connecting a Host Computer to a Hydran 201C
i
Controller in a Local
Network, Using an RS-232 Cable
The supplied RS-232 cable (1.8 m [6 ft]) can be connected to any H201C
i
in a local
network to allow a host computer to communicate with all H201C
i
’s and Hydran 201T
i
’s
in the network.
The RS-232 cable can be used as is; in the case of a permanent installation, you can also
use a commercial null-modem cable (Rx and Tx wires are crossed) with female DB-9
connectors at both ends. Cut and splice the cable in order to be able to run it into the conduit
fitting. These cables are available in lengths up to 7.7 m (25 ft).
You can also make your own null-modem cable by using the same type of cable as for the
RS-485 link. Wire the female DB-9 connector as shown in Table 9-2 on page 9-10.
Table 9-2 - Wiring for Serial Cables
9.5.3
Verifying RS-232 and RS-485 Communications
Proceed as described in Section 7.2.3 on page 7-4.
CAUTION
WARNING
The length of an RS-232 communication cable must not exceed 7.7 m
(25 ft).
From the Hydran 201C
i
Controller
To the Host Computer
Female DB-9 connector, pin 2
Female DB-9 connector, pin 3
Female DB-9 connector, pin 3
Female DB-9 connector, pin 2
Female DB-9 connector, pin 5
Female DB-9 connector, pin 5
CAUTION
WARNING
The shield of each cable section must be grounded at one end only.
Ensure the H201Ci and the host computer share a common earth
ground. Otherwise, use short-haul (private line) modem to provide
electrical isolation between them.
Содержание Hydran 201i
Страница 1: ...GE Energy Services Digital Energy Hydran Instruction Manual 201i System ...
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Страница 36: ...Chapter 1 Introduction 1 10 Rev 6 March 2011 Part 17997 PAGE LEFT INTENTIONALLY BLANK ...
Страница 72: ...Chapter 3 Hydran 201Ci Controllers 3 16 Rev 6 March 2011 Part 17997 PAGE LEFT INTENTIONALLY BLANK ...
Страница 114: ...Chapter 5 Before Installation 5 16 Rev 6 March 2011 Part 17997 PAGE LEFT INTENTIONALLY BLANK ...
Страница 143: ...Installation Part 17997 Rev 6 March 2011 6 29 Figure 6 9 Installing the CPU Module ...
Страница 176: ...Chapter 8 Hydran 201Ci 1 Installation 8 16 Rev 6 March 2011 Part 17997 PAGE LEFT INTENTIONALLY BLANK ...
Страница 190: ...Chapter 9 Communications and Networking 9 14 Rev 6 March 2011 Part 17997 PAGE LEFT INTENTIONALLY BLANK ...
Страница 216: ...Chapter 11 Operating the Hydran 201i System 11 8 Rev 6 March 2011 Part 17997 PAGE LEFT INTENTIONALLY BLANK ...
Страница 236: ...Chapter 12 Troubleshooting 12 20 Rev 6 March 2011 Part 17997 PAGE LEFT INTENTIONALLY BLANK ...
Страница 244: ...Chapter 13 Maintenance 13 8 Rev 6 March 2011 Part 17997 PAGE LEFT INTENTIONALLY BLANK ...
Страница 254: ...Appendix B Mechanical Drawings B 2 Rev 6 March 2011 Part 17997 Figure B 3 1 5 In Adaptor ...
Страница 255: ...Hydran 201Ti Intelligent Transmitter Part 17997 Rev 6 March 2011 B 3 Figure B 4 1 In Adaptor ...
Страница 262: ...Appendix C Functional Block Diagrams C 4 Rev 6 March 2011 Part 17997 PAGE LEFT INTENTIONALLY BLANK ...
Страница 282: ...Appendix F Default Values of the Parameters F 4 Rev 6 March 2011 Part 17997 PAGE LEFT INTENTIONALLY BLANK ...
Страница 284: ...Appendix G Unit Conversions G 2 Rev 6 March 2011 Part 17997 PAGE LEFT INTENTIONALLY BLANK ...
Страница 298: ...Appendix I Glossary I 12 Rev 6 March 2011 Part 17997 PAGE LEFT INTENTIONALLY BLANK ...
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