User Manual
26
Communication cable must be shielded twisted pair cable.
Communication unstable or communication failure may follow if
otherwise.
Communication cable should be far away from the high voltage cable.
Place the communication cables and power cables in parallel or strap
them together is strictly forbidden. Communication interface or device
damage if otherwise. If not prevented, lead the communication cable
through galvanized tube for shielding.
Communication solution
The communication method of PVS is shown below:
PVS 1
A1 B1 A2 B2
RS485A
RS485B
PC
PVS 2
A1 B1 A2 B2
PVS n
A1 B1 A2 B2
(optional)
120Ω resistor
Logger
Connect A1 and B1 of first PVS to A1 and B1 of data collector;
Connect A2 and B2 of first PVS to A1 and B1 of second PVS;
Connect A2 and B2 of second PVS to A1 and B1 of third PVS;
And so forth: connect A2 and B2 of previous PVS to A1 and B1 of next PVS
Summary of Contents for PVS-12MH-DB
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