jmonro

We all ready figured out what happends, the second byte of the first word (ASCII TABLE) must have the number of BYTEs you are using, not the number of words. We can send sms from SIM storage but we still can´t receive clean sms, we receive part of the message and some trash any help could be use full. jmonro

Hello we are bachelor theists from Venezuela working with the Twido and its communication features. We have a question about the ASCII only transmission tables. We have nine words to send plus the two control words; in that case we have eleven words in the table. Initially we configured the first word of the table with a cero in the more significant byte (only transmission) and nine in the least significant byte (9 words to send), [%MW0:=16#9]. This command did not work well; it did not send the complete message. However if we add 4 extra words [%MW0:=16#D] the command works fine. We have the same situation in different tables of different sizes in witch cases the number of extra words changes. We would like to know, in order to have a correct use of the Twido memory words, why the number of words that we need to configured in the table are higher that the ones we are really transmitting. And what are the extra words used for. By the way, we are configuring nine words in the EXCH instruction, in that operation block; we do not need any extra words, but we are forced to define those extra words in the control word %MW0. Thank you for your reply. Regards, Mariamelia Calcano Jose Monro

Hello, we are doing our bachelor thesis i based on the communication between Twido controller and WAVECOM fastrack GSM modem. We have seen the document of the application that communicates a pc and a Twido; however we are having trouble trying to communicate the Twido with the modem, and the twidosoft with the second modem. We would like to know if the Twido is able to communicate via SMS or just by a data call. If it is possible via SMS, we need to know how the TWIDO handles the AT commands, we know that it is possible to introduce an initializing AT command, but what happens when the modem receives a SMS after the plc sends the initializing command ? Is the Twido able to read with the AT+CMGR the message content by itself, and we just need to store it in the plc with the Exch command? How we should configure the Twido to work: as a Modbus RTU, Modbus ASCII, or just ASCII?