1. : termination resistance/120Ω ~200Ω
2.Termination resistance for extreme end slave :possible to engage by the DIP SW inside
※ Note
○The end connection device to connect with communication module is available for both RJ45
and/or screw terminal.
But it is mainly recommended to use RJ45 for the test of communication state one by one or a
serial group ,on the other hand Screw terminal for actual field connection wiring to secure from
the vibration, noise, humidity,etc.
The example picture for RJ45 is as follows:
Also the actual connection through screw terminal between Master and Slave(DSP-VIP) in field
bus system is as follows:
○In the connection on the concept with Master and Slave, a matching converter (protocol
converter) to match 485 of VIP with Master ,which is manufacured by other manufacturer, is
required to have isolated power from a PC(Master)
○The position of termination resistance in serial communication between Master and Slave(VIP)
is basically referred as follows,but it could be changed according to a field condition:
Master
Slave/VIP
Extreme
End
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