connect 2 Lcnc machine using mb2hal

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bkt
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26 Dec 2022 13:03 #260322 by bkt

connect 2 Lcnc machine using mb2hal was created by bkt

Because nee only few bit exchange, I find convenient using mb2hal .... tcp is better ....but not undertand if possible connect ... not remember if server/client situation was supported or not .... any how if supported was the right ini file to write?...example ...

/* server side I supposed */[MB2HAL_INIT]
INIT_DEBUG=3
SLOWDOWN=0.0
TOTAL_TRANSACTIONS=5

[TRANSACTION_00]
#Manually change values in Mod_RsSim and see result here
LINK_TYPE=tcp
TCP_IP=192.168.2.10
TCP_PORT=5002
MB_SLAVE_ID=0
MB_TX_CODE=fnct_02_read_discrete_inputs
FIRST_ELEMENT=1
NELEMENTS=8
HAL_TX_NAME=rd_di
MAX_UPDATE_RATE=0.0
DEBUG=1

then client side ..

/* server side I supposed */[MB2HAL_INIT]
INIT_DEBUG=3
SLOWDOWN=0.0
TOTAL_TRANSACTIONS=5

[TRANSACTION_00]
#Manually change values in Mod_RsSim and see result here
LINK_TYPE=tcp
TCP_IP=192.168.2.09
TCP_PORT=5002
MB_SLAVE_ID=0 ####<---- is right?? or was MB_SERVER_ID??? or nothing??
MB_TX_CODE=fnct_02_read_discrete_inputs
FIRST_ELEMENT=1
NELEMENTS=8
HAL_TX_NAME=rd_di
MAX_UPDATE_RATE=0.0
DEBUG=1

thnaks for any suggest

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JPL
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26 Dec 2022 18:28 #260336 by JPL

Replied by JPL on topic connect 2 Lcnc machine using mb2hal

I'm sorry but that is not going to work for the simple reason that mb2hal is only able to have linuxcnc as the master. You cannot use it to configure it as a slave.

But YES, that would be very nice if this could work.

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db1981
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26 Dec 2022 20:05 #260342 by db1981

Replied by db1981 on topic connect 2 Lcnc machine using mb2hal

sascha has done an modbus slave driver for lcnc:

github.com/sittner/linuxcnc-mbslave

The following user(s) said Thank You: tommylight, bkt

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bkt
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27 Dec 2022 22:37 #260438 by bkt

Replied by bkt on topic connect 2 Lcnc machine using mb2hal

I see on git previously .... seems install with sudo make install .... but not understand usages so no try .... seems simple add loadusr -mbslave /mypath/myconfig.xml to my hal file? .... READ:ME file is a little "short" ... someone have try?

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JPL
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27 Dec 2022 22:45 #260439 by JPL

Replied by JPL on topic connect 2 Lcnc machine using mb2hal

There is an examples file 'mbslave-conf.xml' (in the examples directory). I did not try but would expect the pins listed in the xml to show up in HAL.

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