| ??? 05/28/08 13:22 Read: times |
#155222 - OK, I'll bend it in neon Responding to: ???'s previous message |
If you do not (as with any other 485 implementation on a '51) have the proper waits between transmit from a and transmit from b it will, of course, fail.
As you might expect. I'm not sure I'm understanding what you mean by A and B. This is a single differential transceiver, hence A=/B and vice versa. Is the skew between those two what concerns you? "have the proper waits between transmit from node adam and transmit from node beulah it will, of course, fail" but it does regulate its own supply, and make that available for use by the optoisolators, which helps with cost and complexity. this is udderly (bovine) ridiculous, the MAX I suggest does NOT need optoisolators to provide an galvanically isolated line, so how can "make that available for use by the optoisolators" help with "cost and complexity" Erik |
| Topic | Author | Date |
| RS485 questions | 01/01/70 00:00 | |
| Yes its required | 01/01/70 00:00 | |
| + | 01/01/70 00:00 | |
| you can not achieve isolation .... | 01/01/70 00:00 | |
| + | 01/01/70 00:00 | |
| why common power and isolated 485? | 01/01/70 00:00 | |
| where to get supply | 01/01/70 00:00 | |
| RS485 experiences | 01/01/70 00:00 | |
| all the stuff inside | 01/01/70 00:00 | |
| Prifibus alike | 01/01/70 00:00 | |
| not with '176 | 01/01/70 00:00 | |
| sn75lbc176 planed | 01/01/70 00:00 | |
| why galvanic isolation ? | 01/01/70 00:00 | |
| what is wrong? | 01/01/70 00:00 | |
| then try MAX3158 | 01/01/70 00:00 | |
| how about this little gem? | 01/01/70 00:00 | |
| have you read it fully | 01/01/70 00:00 | |
| It's just another way to get the job done. | 01/01/70 00:00 | |
| OK, I'll bend it in neon | 01/01/70 00:00 | |
| Prifibus alike ..... it isn't | 01/01/70 00:00 | |
| Galavanic isolation | 01/01/70 00:00 | |
| Galavanic isolation | 01/01/70 00:00 | |
| Do it like Profibus | 01/01/70 00:00 | |
| economical approach | 01/01/70 00:00 | |
Thanks for all answers! | 01/01/70 00:00 |