mb2hal(1)

NAME
mb2hal - HAL userspace component for Modbus

SYNOPSIS

Default component name:
    loadusr -W mb2hal config=config_file.ini

Custom component name:
    loadusr -Wn mymodule mb2hal config=config_file.ini

DESCRIPTION
MB2HAL is a generic userspace HAL component to communicate with one or more Modbus devices. It supoorts Modbus RTU and Modbus TCP.

See http://linuxcnc.org/docs/html/drivers/mb2hal.html for more information.

PINS

  fnct_01_read_coils:

mb2hal.m.n.bit bit out
mb2hal.m.n.bit-inv bit out

  fnct_02_read_discrete_inputs:

mb2hal.m.n.bit bit out
mb2hal.m.n.bit-inv bit out

  fnct_03_read_holding_registers:

mb2hal.m.n.float float out
mb2hal.m.n.int s32 out

  fnct_04_read_input_registers:

mb2hal.m.n.float float out
mb2hal.m.n.int s32 out

  fnct_05_write_single_coil:

mb2hal.m.n.bit bit in
     NELEMENTS needs to be 1 or PIN_NAMES must contain just one name.

  fnct_06_write_single_register:

mb2hal.m.n.float float in
mb2hal.m.n.int s32 in
    NELEMENTS needs to be 1 or PIN_NAMES must contain just one name. Both pin values are added and limited to 65535 (UINT16_MAX). Use one and let the other open (read as 0).

  fnct_15_write_multiple_coils:

mb2hal.m.n.bit bit in

  fnct_16_write_multiple_registers:

mb2hal.m.n.float float in
mb2hal.m.n.int s32 in
    Both pin values are added and limited to 65535 (UINT16_MAX). Use one and let the other open (read as 0).

  Each transaction
mb2hal.m.num_errors u32 in
    Error counter
m = HAL_TX_NAME or transaction number if not set, n = element number (NELEMENTS)
Example:
mb2hal.00.01.int (TRANSACTION_00, second register)
mb2hal.readStatus.01.bit (HAL_TX_NAME=readStatus, first bit)

AUTHOR
Victor Rocco

LICENSE
GPL