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  • rodw
  • rodw's Avatar
20 Jan 2025 02:28
Replied by rodw on topic Is it worth it to buy larger stepper drivers?

Is it worth it to buy larger stepper drivers?

Category: General LinuxCNC Questions


I have one DM556 driver that is capable of 4A RMS maximum.

That is all.

Yes, that is all the drive can do but does the motor actually need 4.6 amps to run his machine? My guess probably not.
  • vre
  • vre
20 Jan 2025 02:19 - 20 Jan 2025 02:33
Replied by vre on topic Mesa modbus and pktUart

Mesa modbus and pktUart

Category: Other User Interfaces 

#define MAX_MSG_LEN 16 // may be increased if necessary to max 251
#define DEBUG 2

static const hm2_modbus_chan_descriptor_t channels = {
/* {TYPE, FUNC, ADDR, COUNT, pin_name} */
{HAL_BIT, 3, 130, 8, "in"},
{HAL_U32, 16, 1, 8, "out"},
};

compilation : sudo modcompile file.mod

this is a working mb2hal configuration for my modbus module
[TRANSACTION_00]
LINK_TYPE=serial
SERIAL_PORT=/dev/ttyS0
SERIAL_BAUD=9600
SERIAL_BITS=8
SERIAL_PARITY=none
SERIAL_STOP=1
SERIAL_DELAY_MS=5
MB_SLAVE_ID=1
FIRST_ELEMENT=129
PIN_NAMES=01,02,03,04,05,06,07,08,09,10,11,12,13,14,15,16
HAL_TX_NAME=in
MB_TX_CODE=fnct_03_read_holding_registers

[TRANSACTION_01]
PIN_NAMES=01,02,03,04,05,06,07,08,09,10,11,12,13,14,15,16
MB_TX_CODE=fnct_16_write_multiple_registers
FIRST_ELEMENT=1
HAL_TX_NAME=out
MAX_UPDATE_RATE=0.0
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