Figure 25 Analogue 0-10V and 0-20mA Output
EXM-E-RS485/PR-RS485
The RS485 expansions are just converters with photo
isolation providing 3-sets of wiring terminals (although
there are 3-sets of terminals, they are connected within
the unit, so only one channel RS485 is available) of RS485
port (2x8pin) of CPU(PR-18/ELC-22/PR-24) for easy
connection with other devices.
Figure 26 RS485 Connection
If “RT1”, RT2” terminals are short connected, one 120R
resistor will be connected between A/+ and B/- providing
a termination resistor for end-of-line purposes.
Communication Port Instructions
PR-6 CPUs
Figure 27 PR-6 CPU Ports
PR-12 CPUs
With HMI
Without HMI
PR-14, PR-18, ELC-22 and PR-24 CPUs
To Next Page
Loading...
