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- Request custom bitfile: 5i25 + 7i77 (P3) + 7i74 (P2) with pktUART for Modbus
Request custom bitfile: 5i25 + 7i77 (P3) + 7i74 (P2) with pktUART for Modbus
- umerov
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29 Jun 2026 14:19 - 29 Jun 2026 14:27 #347391
by umerov
Request custom bitfile: 5i25 + 7i77 (P3) + 7i74 (P2) with pktUART for Modbus was created by umerov
I am retrofitting an old Morbidelli CNC woodworking machine. My old setup used analog 0-10V to control the spindle inverter, but I would like to switch to Modbus RTU using an unused channel on my 7I74 card.
I checked the standard Mesa firmware archive but couldn't find a bitfile with the pktUART module for this exact hardware combination. Could PCW or someone else kindly compile a custom bitfile for me with 1 or 2 channels of pktUART on the 7I74, leaving the rest as standard SSerial?
My current hardware configuration is:
5I25 (P3) -> 7I77
5I25 (P2) -> 7I74
Thanks in advance for the help!
I checked the standard Mesa firmware archive but couldn't find a bitfile with the pktUART module for this exact hardware combination. Could PCW or someone else kindly compile a custom bitfile for me with 1 or 2 channels of pktUART on the 7I74, leaving the rest as standard SSerial?
My current hardware configuration is:
5I25 (P3) -> 7I77
5I25 (P2) -> 7I74
- 7I74 (Channel 0) -> 7I84 (inputs/outputs)
- 7I74 (Channel 1) -> 7I70 (inputs)
- 7I74 (Channel 2) -> 7I71 (outputs)
Thanks in advance for the help!
Last edit: 29 Jun 2026 14:27 by umerov.
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29 Jun 2026 17:06 #347393
by PCW
Replied by PCW on topic Request custom bitfile: 5i25 + 7i77 (P3) + 7i74 (P2) with pktUART for Modbus
The 7I74 can only support 1 RS-485 channel (channel 7) as channels 0..6 are RS-422 only
You can use the serial port on the 7I77 for RS-485
You can use the serial port on the 7I77 for RS-485
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Moderators: PCW, jmelson
- Hardware & Machines
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- Request custom bitfile: 5i25 + 7i77 (P3) + 7i74 (P2) with pktUART for Modbus
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