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TOSHIBA INTERNATIONAL CORPORATION
13131 West Little York Road
Houston, TX 77041
PH. 800 231- 1412, 713-466-0277 FAX 713-466-8773
E-Mail plc@tic.toshiba.com
Programmable Controllers
MODEM COMMUNICATIONS WITH THE T1 AND T2E/T2N March 1998
USING T-PDS WINDOWS FOR DIAL–UP COMMUNICATIONS WITH TOSHIBA
T1 AND T2E/T2N PROGRAMMING PORT
Master Computer
T2E/T2N PLC
Modem Modem
RS232
Telephone
Line
Different
Ph. Numbers
Modem
Stored in T-PDS
w/Null
Software T1/T1S PLC
Mo
ページ2に含まれる内容の要旨
Accessories For T1 Modem Communications (with programming port): PC Side: • a standard “straight-through” 9-25 pin RS-232 serial cable; • a ≥ 9600 baud external modem. PLC Side: • a standard “straight–through” 9-25 pin RS-232 serial cable; • a “null-modem” adapter such as Radio Shack’s 9-9 pin Null Modem • a Toshiba part number TKRS232T1 T1 programming cable • a ≥ 9600 baud external modem. See Note 2 on page 5 Now that we have discussed the basic hardware requirements, let’s look at the
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Click on the “Computer Link” button in the System Parameters screen, and the “ComputerLink Setup” menu will appear. Select a station number for the PLC, then click the “Communication Parameter” button . Select “NON” parity setting, and then click the “OK” buttons. When the “Write OK” screen appears, click “OK.” Now go to the PLC/Memory Management menu and select “Write to EEPROM.” The Computer Link parameters will now be stored in EEPROM memory. If you have a T2E, set the “COM” dip switch
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Now let’s go to the Modem Control box and finish the T-PDS configuration. The Modem Control box is a handy database that will store a remote site name, modem initialization parameters, and the phone number of the remote site. You can move between the fields using the TAB key. The most important parameter here is the “Initialize” parameter. T-PDS will not successfully dial out or disconnect without this. The parameter shown here is the "S25” register which controls the time that the PC modem
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STEP 3: CONFIGURE THE PLC’s MODEM: Now that T-PDS is configured, we are ready for the last part of our setup procedure which is to initialize our remote PLC modem. We suggest that you connect your PC to the PLC’s modem with the straight-through 9-25 pin RS-232 cable, and open up Windows Terminal (or similar). Set up the terminal program for 9600 baud, 8 data bits, 1 stop bit, no parity. Once the terminal connection is opened, you can begin to set the parameters in the PLC’s modem. There are
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When the programming port is set to non parity, only the T-PDS software (and the modem) can communicate with the PLC. Furthermore, the T-PDS software must also be setup for non parity. Note 5: For T-PDS versions prior to Ver 1.2 contact Toshiba for upgrade eligibility. A SPECIAL NOTE FOR USERS THAT HAVE OLDER T1’s, T2’s, and T3’s WHOSE PROGRAMMING PORTS DO NOT SUPPORT A “NO-PARITY” SETTING If you have one of these PLCs and would like to use modem communications, you must use a modem that suppor
