How to connect several MASS-VIEWs (5, 6, 7) to a RS-485 bus system?
MASS-VIEW® instruments have digital communication possibilities.
- a point to point connection to a PC (see FAQ: How to connect MASS-VIEW® using RS-232 to a computer?) or
- a RS-485 bus system using Modbus. Connecting this way makes it possible to read-out all instrument on one bus with a personal computer.
For an example of method 2 see the system overview below.
In this situation, two seperate power networks are shown isolated by the RJ-45 Power Isolator, only the two datalines are connected between the two networks.
The basis of the RS-485 network is the RJ-45 multiport connector RS-485. An RS-485 network will start with the red begin terminator and will end with the black end terminator. Both are sold as one RJ-45 Terminator Set.