Solvline Eddy DK - Manual (Page 31)

Eddy DK Programmer Guide
31
2.4.2.5. S8:COM3 & S9: COM4 Select
COM Port #3 and COM Port #4 set the RS422/RS485 mode.
ON
ON
1 2 3 4
COM PORT#3, #4 settings
Switch
Bank
Switch
No
Down Position(OFF) UP Position(ON)
S8
Port#3
1 RS485 Half-Duplex mode RS422 Full-Duplex mode
2
RS422(RX enabled)
RS485 echo-mode
RS485 non echo-mode
3
RS422 Termination Resistor
not connected
RS422 Termination Resistor
Connected
4
RS485 Termination Resistor
not connected
RS422 Termination Resistor
Connected
S9
Port#4
1 RS485 Half-Duplex mode RS422 Full-Duplex mode
2
RS422(RX enabled)
RS485 echo-mode
RS485 non echo-mode
3
RS422 Termination Resistor
not connected
RS422 Termination Resistor
Connected
4
RS485 Termination Resistor
not connected
RS422 Termination Resistor
Connected