Vertex_VX-1700_series_CAT_user.pdf

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1、VX-1700 CAT OPERATION REFERENCE BOOK CAT (COMPUTER AIDED TRANSCEIVER) OPERATION VX-1700 CAT OPERATION REFERENCE BOOK VX-1700 CAT OPERATION REFERENCE BOOK CAT (COMPUTER AIDED TRANSCEIVER) OPERATION COM GPS RS-232C “Cross” Cable OVERVIEW The CAT (Computer Aided Transceiver) System in the VX-1700 provi

2、des control of frequency, memory, and other settings using an external personal com- puter. This allows multiple control keystrokes to be fully automated as a single mouse click or keystroke operation on the computer keyboard. To use computer control of your VX-1700 transceiver, a D-SUB 9-pin cross

3、cable (“null modem”) will be required for connection of the VX-1700 transceiver to your computers serial (“COM”) port. Be sure that the serial cable has the proper gender and number of pins (some COM ports used a 9-pin rather than a 25-pin configuration). If the computer uses a custom connector, you

4、 may have to construct the serial cable; in this case, refer to the technical documentation supplied with your computer for correct connections. The illustration below shows an example of CAT sys- tem connections. Vertex Standard Co., Ltd. does not produce CAT System software, owing to the wide vari

5、ety or per- sonal computers and operating systems in use world- wide. However, the information presented in this chapter explains the serial data structure and opcodes used by the CAT system. This information, along with the brief programming examples supplied later, is intended to assist the develo

6、per in writing programs. NOTE ? The CAT system protocol is available from Lot 028 or later products. ? When the SELCALL or ALE function is activat- ing, you cannot use the CAT system protocol. ? When using the CAT system protocol, it is neces- sary for you to change the DIP switch setting of the VX

7、-1700. Page 1 VX-1700 CAT OPERATION REFERENCE BOOK CAT (COMPUTER AIDED TRANSCEIVER) OPERATION VX-1700 MODIFICATION 1. Turn off the VX-1700 by pressing and holding the POWER switch of the VX-1700 for one second, then turn off the External DC Power Supply. 2. Disconnect the DC Cable from the DC INPUT

8、Jack on the VX-1700 rear panel, and then dis- connect all cables from the VX-1700. 3. Referring to Figure 1, remove the four screws from the side of the transceiver (two screws for each side), along with four screws affixing the bottom case; remove the bottom case. 4. Referring to Figure 2, slide th

9、e S4002 and S4003 switches to the “A” position. 5. Replace the bottom case with its eight screws. 6. Connect the all cables to the transceiver. IMPORTANT NOTE ? Please be careful to avoid short-circuit to any metal object. ? Be careful to prevent injury from any sharp cor- ners. ? Please practice st

10、andard grounding techniques and do not touch semiconductor components un- necessarily to avoid breakage or damage by static electricity etc. NOTE Do not forget to return the S4002 and S4003 switches into the “B” side when using the GPS. Figure 1 Figure 1 GPS-INTERFACE Unit or ALE Unit MAIN Unit Cool

11、ing Fan Page 2 VX-1700 CAT OPERATION REFERENCE BOOK CAT (COMPUTER AIDED TRANSCEIVER) OPERATION CAT DATA PROTOCOL Serial data is passed at RS-232 levels via the SI (Se- rial Input) and SO (Serial Output) pins of the GPS jack (pins 2 and 3, respectively) on the rear panel of the transceiver. The seria

12、l data format is 4800 bits/ second; each byte sent consists of one start bit, 8 data bits, no parity, and two stop bits (4800, N, 8, 2). CAT DATA (ONE BYTE, SENT LEFT-TO-RIGHT) All commands sent to the transceiver must consist of blocks or five bytes each, with up to 200 ms be- tween each byte. The

13、last byte sent in each block is the instruction opcode, while the first four bytes or each block are arguments: either parameters for that instruction, or dummy values (to pad the block out to five bytes). 5-BYTE COMMAND BLOCK (SENT LEFT-TO-RIGHT) There are 15 instruction opcodes for the VX-1700. No

14、tice that several instructions require no specific parameters, but every command block sent to the transceiver must consist of five bytes. The CAT control program in the computer must con- struct the five-byte block by selecting the appropri- ate instruction opcode, organizing the parameters, if any

15、, and providing unused (dummy) argument bytes for padding (dummy bytes may have any value). The resulting five bytes are then sent, opcode last, to the SI (Serial Input) pin of the GPS jack on the rear panel of the transceiver. Example: Tune to 14.250.0MHz: ? First, determine the opcode for the desi

16、red in- struction (see the CAT command table). These opcodes should be stored in the program so they can be looked up when the user requests the cor- responding command. In this case, the instruc- tion is “Set Receive CHR$(CHR$(CHR$( CHR$( Notice here that the BCD values can be sent just by precedin

17、g the decimal digits with “CHR$(0);CHR$(0);CHR$(29);CHR$(2); READING RETURNED DATA The reading process is easily done through a loop, storing incoming data into an array, which can then be processed after all expected bytes have been read into the array. To read the meter: FOR I = 1 TO 5 MDATA(I)=AS

18、C(INPUT$(1,#2) NEXT I Recall from above that the meter data consists of four identical bytes, followed by a “padding” byte, so we really only need to see one byte to get all of the information this command offers. Nevertheless, we must read all five bytes (or 1, 18, 19, in the case of the Update dat

19、a). After reading all of the data, We can select the bytes of interest to us from the array (MDATA, in the above example). Page 7 VX-1700 CAT OPERATION REFERENCE BOOK CAT (COMPUTER AIDED TRANSCEIVER) OPERATION Page 8 NOTE VX-1700 CAT OPERATION REFERENCE BOOK CAT (COMPUTER AIDED TRANSCEIVER) OPERATION Copyright 2008 VERTEX STANDARD CO., LTD. All rights reserved No portion of this manual may be reproduced without the permission of VERTEX STANDARD CO., LTD.