| ??? 09/18/08 15:47 Read: times |
#158365 - and terminated?? Responding to: ???'s previous message |
only that particular card ??
is that the same card every time? I have ground and sheilded everythings and terminated?? I have to reset the particular card at failed terminal manually.After reset mostly that card donot repeat the problem.(Means ...no hardware problem) ehm, you have never heard of an intermittent problem? A computer is being used for master after using a Rs232 to Rs485 convertor card and It is suppose to Master of all network. That means you do not have 9-bit address ID, is the ID of the terminal you address in a checksummed record? does the terminals only acceot the address when the cksm matches? Erik |
| Topic | Author | Date |
| MAX1483 problem | 01/01/70 00:00 | |
| and terminated?? | 01/01/70 00:00 | |
| Comm Packet Receive Validation | 01/01/70 00:00 | |
| I agree with Michael | 01/01/70 00:00 | |
| Sorry Erick, Couldn't reply you earlier | 01/01/70 00:00 | |
| how did you do that with a PC as the master? | 01/01/70 00:00 | |
| 9 bit | 01/01/70 00:00 | |
after I posted | 01/01/70 00:00 | |
| half-duplex networking | 01/01/70 00:00 | |
| Watchdog function common | 01/01/70 00:00 | |
| Only one transmitter at a time. | 01/01/70 00:00 | |
| suggest from third countries... | 01/01/70 00:00 | |
| Something else to consider | 01/01/70 00:00 | |
| too late, but for others | 01/01/70 00:00 |