REZA MALHAVI
- Sep 8, 2017
- 6
- Joined
- Sep 8, 2017
- Messages
- 6
the sensor use mod-bus protocol , I want to read sensor data by an Arduino. I don't know that the 2 wire connection is RS485 or other connections.Do you mean the type of wire or the discrete devices circled?
Thank you.Sir REZA MALHAVI . . . . .
What is the type of 2 wireconnection?
Looking a the wording of core on the left and the word shield on the right, is being the use of a shielded cable between the diode sets and the RS232 connector.
The illustration serves both as a pic of the cable type AND the manner of a very neat extraction method of the inner core wire from the shielding as well asalso then leaving a neat shield pigtail . . . . WITHOUT destroying many of the shield strands.
Also, you want to go right up to the diode pair and leave minimum diode wiring exposed . . . or you would have defeated the purpose of the use of shielded interconnect wiring.
Shielded wire with its outer braided shield and inner core wire . . . .
What it cannot "tell" you is that you initially push the braiding down such that it greatly expands apart, and leaves big X cross gaps and you then spread an X crossing even further apart such thatt you can then get a . . . .needle / wire hook . . . down inside to flick a folded loop of the wire out, then you pull that wire end out totally, The pic is showing the mid state of that operation.
73's de Edd
this connection is for data transmission and it work. please see the attached file.The RX connection has a two diodes connected back to back so will never pass any current.