menu "Modbus configuration" config MB_QUEUE_LENGTH int "Modbus serial task queue length" range 0 200 default 20 help Modbus serial driver queue length. It is used by event queue task. See the serial driver API for more information. config MB_SERIAL_TASK_STACK_SIZE int "Modbus serial task stack size" range 768 8192 default 2048 help Modbus serial task stack size for event queue task. It may be adjusted when debugging is enabled (for example). config MB_SERIAL_BUF_SIZE int "Modbus serial task RX/TX buffer size" range 0 2048 default 256 help Modbus serial task RX and TX buffer size for UART driver initialization. This buffer is used for Modbus frame transfer. The Modbus protocol maximum frame size is 256 bytes. Bigger size can be used for non standard implementations. config MB_SERIAL_TASK_PRIO int "Modbus serial task priority" range 3 10 default 10 help Modbus UART driver event task priority. The priority of Modbus controller task is equal to (CONFIG_MB_SERIAL_TASK_PRIO - 1). config MB_CONTROLLER_SLAVE_ID_SUPPORT bool "Modbus controller slave ID support" default n help Modbus slave ID support enable. When enabled the Modbus command is supported by stack. config MB_CONTROLLER_SLAVE_ID hex "Modbus controller slave ID" range 0 4294967295 default 0x00112233 depends on MB_CONTROLLER_SLAVE_ID_SUPPORT help Modbus slave ID value to identify modbus device in the network using command. Most significant byte of ID is used as short device ID and other three bytes used as long ID. config MB_CONTROLLER_NOTIFY_TIMEOUT int "Modbus controller notification timeout (ms)" range 0 200 default 20 help Modbus controller notification timeout in milliseconds. This timeout is used to send notification about accessed parameters. config MB_CONTROLLER_NOTIFY_QUEUE_SIZE int "Modbus controller notification queue size" range 0 200 default 20 help Modbus controller notification queue size. The notification queue is used to get information about accessed parameters. config MB_CONTROLLER_STACK_SIZE int "Modbus controller stack size" range 0 8192 default 4096 help Modbus controller task stack size. The Stack size may be adjusted when debug mode is used which requires more stack size (for example). config MB_EVENT_QUEUE_TIMEOUT int "Modbus stack event queue timeout (ms)" range 0 500 default 20 help Modbus stack event queue timeout in milliseconds. This may help to optimize Modbus stack event processing time. config MB_TIMER_PORT_ENABLED bool "Modbus stack use timer for 3.5T symbol time measurement" default y help If this option is set the Modbus stack uses timer for T3.5 time measurement. Else the internal UART TOUT timeout is used for 3.5T symbol time measurement. config MB_TIMER_GROUP int "Modbus Timer group number" range 0 1 depends on MB_TIMER_PORT_ENABLED default 0 help Modbus Timer group number that is used for timeout measurement. config MB_TIMER_INDEX int "Modbus Timer index in the group" range 0 1 depends on MB_TIMER_PORT_ENABLED default 0 help Modbus Timer Index in the group that is used for timeout measurement. endmenu