AN-363 MODBUS RTU connecting to Stepper Drive
This document is a guide to users wanting to use the Motion Coordinator MC4/5/6 as a Modbus master connected to a typical slave device. The actual example used is the Moons ST stepper drive.
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Modbus RTU Trio slave
We have connected many different brands of HMI to the Trio using Modbus RTU on RS232. Typical serial communications setup below. baudrate = 9600 ADDRESS = 1 SETCOM(baudrate, 8, 1, 2, 1, 4) ' 8 bits, one stop bit, even parity The HMI will use Modbus ...
Modbus RTU Holding Registers 40001 ...
A program has this line: mb_status = MODBUS(3, -1, mbh, $04, addr, 40001, 1, 1) That is for reading the value from the server device. The syntax is value = MODBUS(3, slot, handle, modbus function code[, parameters]) 4 is Read Input Registers, so the ...
AN-315 EtherCAT setup for Panasonic A5B Drive
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The Trio firmware can open a Modbus Client port and communicate with any Modbus Server. Port number is usually 502. You need to have the document from the slave vendor that lists the register numbers in the Modbus connection of the device. Probably ...
Stepper Axis pulse output duty cycle and shape
The ATYPE 45 is A+B quadrature output square wave and will work with a drive that has the same type of input. alternatively ATYPE 43 outputs short pulses and a direction signal. You set the UNITS to 16 x the normal value to allow for the divider in ...