Adcom A723, A720 manual Device series, Understanding connectors, Receiver connector

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CHAPTER 4

Performing Advanced Functions

Device series

Currently, two A720 device versions are in use: Series 1 and Series 2. in addition, since begin of 2001, Adcon introduced also the Series 3 model (A723). You can determine which series a device is in any of these ways:

•The VER command (see pages 29 and 52). When the device is connected, you can type this command to the series. With a Series 1 device, the command returns VER 1.0 or higher, while with a Series 2 device, the return is VER 2.0 or higher. This is the most reliable method of determining which series you have. To differentiate between A720 and A723 devices, type the command TYPE, and an A723 will return the string

TYPE A723.

•The logo on the front of the device. Series 2 devices include such wording on the logo. However, if you returned a Series 1 device for repair, it is possible that it was replaced with a Series 2 motherboard. In such a case, you would have a Series 2 device in Series 1 housing. Series 3 devices (A723) are marked as such.

Understanding connectors

The addIT devices have cable attachments called connectors. The connector type determines how the device communicates with the sensors or the computer.

The receiver connector

The addIT A720B receiver has one 4-pin connector. Figure 6 illus- trates this connector and Table 2 details the connections.

2 1

GndV+

3 4

B

A

Figure 6. addIT Receiver Connector (Top View)

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Contents ADC N ADC N Contents Contents Introduction What are addIT devices?Installation issues Conventions ItalicsChapter Using the Base Station Opening the packagesInstalling the base station Installing the receiverInstalling the power supply AddIT Power SupplyReplacing the fuse Conﬁguring the softwareUsing the RTU Installing the RTU Shows an addIT RTUShows what a typical RTU ﬁeld installation looks like More about the LED tool Maintaining and servicing the RTU RTU batteryConﬁguring an addIT RTU in the addVANTAGE software Changing the battery Chapter Chapter Performing Advanced Functions Receiver connector Understanding connectorsDevice series RTU connectors Pins on an I/O Connector Top ViewAddIT RTU Power Connector Top View Conﬁguring the devicesSerial communication protocol General format of a commandGeneral format of an answer Series 1 devices Using terminal commandsSET Ownid nnnn SET PMP 63 SET OwnidSET PMP bl bh SET Slot 3600SET Freq 467112500 SET Freq freq stepSET Rssi value Querying the actual conﬁguration parameters SET RssiSeries 2 and 3 devices CmdsFreq FreqFreq 433925000 Freq 433925000 25000Slot PMP 193 CM 1 PMP 65 72193 cm SSTDEV ReplDEL Repl 5667DEL Dd mm yyyy hh mm ss si ft d1 d2 ... dn dd mm yyyy Data 5666 12/12/1998Data b1 b2 b3 ... bn Dn csFrame 38 description Data 6367 30/4/1999 Frame 39 descriptionImme DataRoute Fdev InfoTemp = internalTem p 146 900 Info 255 0 18/4/1999 21511 1.3 0 0 0 91Anlg Code Description Parameters Returns Sampling methods are deﬁned by three bits, as follows Return result depends on the control byte see table. However A720B and A723, but see also the comments in Remote on Performing Advanced Functions Command Code Deﬁnitions Port 193 RX 6789 Port 7/5/1999 183422193 TX #7851 BA 6789 B#234 BA 15190 BVER 1.3 Blst 30/8/2001 160341VER VER 2.0Notiﬁcations Device descriptors and storage handler Returned errors listCommand line interpreter Real time clockNotiﬁcations Chapter Appendix. Speciﬁcations Parameter Min Typ Max UnitTransmitter all measurements made on a 50 Ω resistive load Chapter Chapter Index INFO, 41 OWNID, 26 PMP PMP What a base station contains Xmit Credits Credits and ColophonColophon