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| 'Master' and 'slave': Tech terms face scrutiny amid anti-racism efforts |
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| madires:
--- Quote from: Simon on June 11, 2020, 12:54:29 pm ---What the hell do you call something that is functionally a slave? --- End quote --- RCU (Remotely Controlled Unit) ;) The work-arounds are cumbersome. We prefer simple and short words. |
| Simon:
--- Quote from: madires on June 11, 2020, 02:08:29 pm --- The work-arounds are cumbersome. We prefer simple and short words. --- End quote --- Yes, quite, it has to fit on a diagram, often as a simple tag on a wire in a diagram so you can't put a flipping paragraph in the place of a wire. |
| madires:
--- Quote from: Simon on June 11, 2020, 01:01:07 pm ---Not really. It denotes an amount of autonomy of the secondary. I have for example looked at a system where i anted a primary master and secondary master should the primary master fail. Master/slaves it is! --- End quote --- You could call the slave "hot stand-by" (term used by HSRP or VRRP for example). |
| Simon:
I am working on a system with a contractor where we have a master ECU and satellite ECU's but we still refer to the communication protocol as master/slave, we sometimes call the satellite ECU's slave ECU. The term satellite came about when the communication protocol was not fully worked out and we did not know how much autonomy they would have. they are literally slave devices, they report when requested their status to the master and the master tells them what to do. So even though I have a heater with thermistors and a hot water valve the satellite simply tells the master what the thermistor says and the master tells the slave what position to drive the hot water valve to. That is a master slave communication and control method, no other way to describe it. But you can call the ECU a satellite as it is an extension of the function of the master ECU, it lives on the end of a comms bus and saves lots of cables going between different boxes. |
| madires:
ECU Extension Unit? Sub-Controller? LCU (Local Control Unit)? However, it's still a slave unit. >:D |
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