The Industrial Raspberry Pi Forum

lukas wrote: ↑08 Mar 2018, 13:16 We recommend using timedatectl(1) as this will set the system clock and also synchronize the system clock back to the RTC in one go. Example:

Code: Select all

sudo timedatectl set-time "2018-03-08 13:15:00"

volker wrote: ↑09 Mar 2018, 10:31 Batteries are not good for industrial devices as they would result in planned obsolescence or you would need a different casing which allows battery replacement. This is why we had decided to build in the much more expensive gold cap to guarantee a long lifetime of the system.
I cannot really think of a typical use case where you would need more then several hours of powerless state in industrial applications. Most cabinets are under current even over the night or during weekends even if the machines are switched off. Therefore the typical use case is a mains power failure which in most countries of the world will not be longer than several minutes or up to some hours. In a case of major power failures due to catastrophic damage (like actually in some US cities due to storms) customers will have huger problems than resetting their RTC during healing phase of such events.
So: No we do not have such plans as we can't see a relevant amount of use cases which would need more than 48 hours backup time. But if you can convince us by showing us such use cases we might consider designing solutions for the next revision.

KarlZeilhofer wrote: I think we could put a real time clock chip by default on the makerboard, there is still some place on the board left. But we plan the fist small batch in the beginning of May. So you have to be a bit patient.

volker wrote: ↑09 Mar 2018, 10:31 Batteries are not good for industrial devices

volker wrote: ↑13 Mar 2018, 15:18 The other restrictions we needed to take into account when constructing the RevPi Core were the facts that the case was predefined to be able to use all our industrial gateways which already existed when we started the project.

volker wrote: ↑13 Mar 2018, 15:18 S5? Bridgport VMC1000? I was talking about 21st centuries industry
Sorry, just kidding. But the reality is 9 out of 10 modern systems will not use batteries and there are many reasons for it. But the most important reason is: RevPi is aiming to the I 4.0 and IoT gateway market and even if used as a PLC most of the customers are connecting the device to a network. So most of the time there is no problem to reach a time server. But there would have been immense problems in a world wide distribution of a system using fixed built in Lithium battery technique. Try and find out yourself the regulations for shipping such items...
The other restrictions we needed to take into account when constructing the RevPi Core were the facts that the case was predefined to be able to use all our industrial gateways which already existed when we started the project. So no way to get any replaceable batteries plus lid in this case.