Adcom A720, A723 Conguring the devices

CHAPTER 4

Performing Advanced Functions

24

The RTU also has a POWER connector. Figure 8 illustrates the con-

nections available at the POWER connector.

Figure 8. addIT RTU POWER Connector (Top View)

 WARNING The RxD and TxD connections are not RS-232

compatible.

This conﬁguration allows the use of external power supplies or

extra batteries (contact Adcon for further details).

Conﬁguring the devices

You can use a Windows Hyperterminal window to connect to either

addIT device. After you have installed the system, follow these

steps to conﬁgure the device:

Note: To conﬁgure the A720B receiver, use the serial cable that

comes with the system. To conﬁgure the A720 or A723 RTU,

you must have the special adapter cable (available from

Adcon) and plug it into the POWER connector.

1. Open a Hyperterminal window.

2. Select the appropriate serial port and click OK.

3. Conﬁgure your terminal as follows:

• 19200 baud

•1 stop bit

•8 data bits

• No parity

• No ﬂow control

• Send LF after CR

4. Select OK to open the terminal window.

5. Press Enter to generate a response in the window.

RxD

TxD

Ground

Battery

1

2

3

4

5

Ext Power

Contents

Main ADCON TELEMETRY Contents Page Chapter 1. Introduction What are addIT devices? Installation issues Conventions Page Chapter 2. Using the Base Station Opening the packages Installing the base station Installing the receiver Installing the power supply Replacing the fuse Conguring the software Chapter 3. Using the RTU Opening the packages Installing the RTU Page More about the LED tool Conguring an addIT RTU in the addVANTAGE software Maintaining and servicing the RTU The RTU battery Changing the battery Page Page Chapter 4. Performing Advanced Functions Device series Understanding connectors The receiver connector The RTU connectors Conguring the devices Serial communication protocol General format of a command General format of an answer Using terminal commands Series 1 devices The SET series of commands Page Page Querying the actual conguration parameters Series 2 and 3 devices Page Page Page Page Page Page Page Page CHAPTER 4 Using terminal commands Figure 10. Frame 39 description Figure 11. The Digibyte for an A720 device Figure 12. The Digibyte for an A723 device Page Page Page Page Page Sampling methods are dened by three bits, as follows: Page Page Page Page Page Page Page Notications Returned errors list Command line interpreter Device descriptors and storage handler Real time clock Radio interface Page Page Appendix. Specications Page Page Page Index A B C D E F I L M N O P Q Page Credits and Colophon Credits Colophon