Experimental Physics and
Industrial Control System

"Peterson, Kevin M. via Tech-talk" <tech-talk at aps.anl.gov> · Fri, 1 May 2020 14:18:14 +0000

The SPI-MAXnet-8000 doesn't work well and I don't recommend it.  I have 
had nothing but trouble with the two I've had the misfortune of 
supporting.

The network stack of the MAXnet controller was not robust; connecting 
the controller to the network via ethernet would result in it locking up 
after only a few minutes.  A power-cycle was required to be able to 
reconnect to the controller.

The pinout of the serial port in the documentation was that of the 
header on the board, NOT the RJ45 connection, if I remember correctly. 
This is what I determined the pinout to be:

RJ45	Function	DB9
----	--------	---
1	nc		1
3	RXD		2
5	TXD		3
7	nc		4
8	GND		5
2	nc		6
4	RTS		7
6	CTS		8
X	nc		9

And most importantly the MAXnet does not use the same line driver as the 
MAVv board, which has internal filters.  The MAXnet controller is very 
susceptible to noise on the limit lines.  The integration of the MAXnet 
controller into the SPI-MAXnet-8000 package makes it difficult to add 
filters.

Kevin

On 4/30/20 1:32 PM, Mark Rivers wrote:
> Hi Mark,
> 
> SPI-MAXnet-8000 support is in motorOmsAsyn.
> 
> MCB-4B support is in motorAcs.
> 
> I am not sure about the MCR-4 and MCR-8 but I think those are just packaged versions of the MCB-4B, so the support would be in motorAcs.
> 
> Mark
> 
> 
> 

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System