| mb2hal(1) | LinuxCNC Documentation | mb2hal(1) |
NAME¶
mb2hal - HAL non-realtime 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 non-realtime HAL component to communicate with one or more Modbus devices. It supports Modbus RTU and Modbus TCP.
See http://linuxcnc.org/docs/html/drivers/mb2hal.html for more information.
PINS¶
fnct_01_read_coils:¶
fnct_02_read_discrete_inputs:¶
fnct_03_read_holding_registers:¶
fnct_04_read_input_registers:¶
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:¶
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
| November 20, 2021 | Modbus to HAL |