Use rs422 on mesa 7i77 to connect Siemens PLC
02 Apr 2022 16:23 #239080
by Taichi
Use rs422 on mesa 7i77 to connect Siemens PLC was created by Taichi
Hello for everyone.
I can't find any information how configuration rs422 port on mesa 7i77.
I need to transmit s32 variable to PLC (tool number)
Siemens PLC can receive information on rs485 or rs422.
Do i can transmit s32 number on any another method?
I can't find any information how configuration rs422 port on mesa 7i77.
I need to transmit s32 variable to PLC (tool number)
Siemens PLC can receive information on rs485 or rs422.
Do i can transmit s32 number on any another method?
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02 Apr 2022 17:20 #239086
by tommylight
Replied by tommylight on topic Use rs422 on mesa 7i77 to connect Siemens PLC
Moved to "driver boards".
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07 Apr 2022 21:21 #239589
by andypugh
I don't know if such a firmware currently exists, I can't see one in the standard firmware set. But it is possible to make custom firmwares.
It might be easier to send the number via a conventional serial port, if your PC has one, or a USB-to-RS485 dongle.
I assume that the PLC already exists and runs the toolchanger? Otherwise bear in mind that LinuxCNC has a built0in software PLC.
Replied by andypugh on topic Use rs422 on mesa 7i77 to connect Siemens PLC
You would need to flash the 5i25 (or whichever FPGA board the 7i77 is plugged in to) with a firmware that puts a UART on the RS422 port.Hello for everyone.
I can't find any information how configuration rs422 port on mesa 7i77.
I don't know if such a firmware currently exists, I can't see one in the standard firmware set. But it is possible to make custom firmwares.
It might be easier to send the number via a conventional serial port, if your PC has one, or a USB-to-RS485 dongle.
I assume that the PLC already exists and runs the toolchanger? Otherwise bear in mind that LinuxCNC has a built0in software PLC.
Please Log in or Create an account to join the conversation.
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