Communication / Networks
MAS 21: PC/PPI Multimaster or RS232/485 adapter
Thread Starter: wolka Started: 11/26/2009 10:06 AM Replies: 1
11/26/2009, 10:06 AM
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1.Can I use the RS232/RS485 adapter to connect CPU224XP and MD720-3 modem instead of PC/PPI Multimaster cable?
2.Can I use the RS232/RS485 adapter to connect CPU224XP and GPS tuner instead of PC/PPI Multimaster cable?
If can't then why?
Thanks
PS Sory from bad inglish
=== Edited by O_Moderator @ 4/15/2010 8:16 AM [GMT ] ===
subject edited
=== Edited by wolka @ 11/26/2009 12:26 PM [GMT ] ===
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11/26/2009, 1:03 PM
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I don't know if it is possible. Normally S7-200 has a 5V voltage output for power supply of the rs485 bus and the PPI cable. I think a RS232/485 convert need also some power. If converter works at the same way, like PC/PPI cable, I can believe that it works. But it is not tested. I think you have to try it.
regards
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