Hi ALL!
I have problem with RS485 in V1040 between V280.
I create test program for testing communicate between two controllers.
At first i change V280 PORT2 to RS485 terminal and V1040 PORT2 to RS485 terminal.
Second connect with RJ12 1---1
6---6
but Master not Read Slave.
Can you help me?
In attcah test program.
MODBUS slave v280 RS485.vlp
MODBUS via v1040 RS485 master.vlp