The module's operating mode is configured using DIP switches that need to be set before powering up the system.
Setting the UART interface
The RS-485 slave interface (UARTs 1 through 4) and the terminating resistor are configured using the DIP switch located inside the Q.series XL module, directly on the CPU board. UARTs are assigned using position pairs 1+2, 3+4, 5+6, and 7+8 (red, orange, green, and blue). Positions 9+10 (purple) activate the terminating resistor used to terminate the UART.
The last module of each UART interface must be terminated with a resistor. If a UART is not terminated, reflections may occur on the bus, leading to disturbances or even loss of data transmission.
Setting the module's address
Module addresses can be defined using the DIP switches on the socket. DIP switch positions 1 through 7 are used to assign module addresses in binary form. Address 0 indicates no fixed hardware configuration. In this case, the address can be set using the Slave Setup Assistance Tool.
When configuring module addresses, start with address "1" on each UART and assign sequential numbers without leaving gaps.
Location of the address DIP switches on the Q.series X socket:
Location of address DIP switches on Q.series Classic socket:
The 8th switch activates the hot swap feature. When enabled, this stores the module configuration in the socket, allowing for the replacement of faulty modules with others of the same type.