6. Communication
6.1 Overview
SPM90 get communicated with 1CH RS485. Please refer to picture shown
below for wiring diagram. In real application, to prevent signal reflection, a
resistor of about 120Ω will be connected at the end of RS485 network for signal
matching. Users should be noted this.
Pic.9 RS485 communication port wiring diagram on SPM90
To Next Page
Loading...
