https://padlet.com/steveallum/vksagw8ejrva Please post any issues that are unclear and you would like me to re-visit en-us 2019-07-16 10:03:56 UTC 2023-03-30 11:32:57 UTC hello@padlet.com https://padlet.net/icons/png/1f6a5.png steveallum https://padlet.com/steveallum/vksagw8ejrva/wish/2130274689 Vendor data are available, if you dig deep enough.  For example for the sensor try emerson.com and, for the logic solver and final element, try exida.com]]> 2022-04-05 08:45:17 UTC https://padlet.com/steveallum/vksagw8ejrva/wish/2130274689 https://padlet.com/steveallum/vksagw8ejrva/wish/2155092372 In conducting the impact analysis a lot of documents have not been provided in the assignment brief (e.g Hazard Study), it indicates within the questions one has been completed.

Are we ok to answer as if one has been conducted but then request copies to be provided to fully complete the assessment process?]]> 2022-04-24 07:43:46 UTC https://padlet.com/steveallum/vksagw8ejrva/wish/2155092372 https://padlet.com/steveallum/vksagw8ejrva/wish/2171230618 Many of the vendor data sheets give the failure rates (safe and dangerous) in failure in time units (i.e. number of failures per 1 billion hours). The ISA equations for calculating PFDAvg etc. we've been told to use the values in the units of 'per year'. Are we allowed to make the assumption that the FIT value can be converted to a per year value (through whatever conversion is needed) and then applying this value into the equations?

]]> 2022-05-05 10:53:33 UTC https://padlet.com/steveallum/vksagw8ejrva/wish/2171230618 https://padlet.com/steveallum/vksagw8ejrva/wish/2171359763 Are we able to insert our LOPA summaries as figures? Currently if we insert as tables this significantly increases wordcount. Just conscious as later in the assignment questions require much more word intensive responses. Do equations used also count towards word count? Thanks!]]> 2022-05-05 12:49:35 UTC https://padlet.com/steveallum/vksagw8ejrva/wish/2171359763 https://padlet.com/steveallum/vksagw8ejrva/wish/2172033998 Hi - been searching for half a day now through all the different exida (and other) PLC data sheets to try and find one that gives all the requested information for Q2. Really struggling to find response time of the devices - can you advise on what to do as this forms part of the calculations. Thanks]]> 2022-05-05 20:22:10 UTC https://padlet.com/steveallum/vksagw8ejrva/wish/2172033998 https://padlet.com/steveallum/vksagw8ejrva/wish/2179245919 Is IACS device risk level the same as the security level? & am I right in assuming for part A you list the assets in the register, then return to complete the likelihood/consequence and device risk/security level once you've completed part b?]]> 2022-05-11 11:26:26 UTC https://padlet.com/steveallum/vksagw8ejrva/wish/2179245919 https://padlet.com/steveallum/vksagw8ejrva/wish/2179593528 I am struggling to find (ie totally not finding) any information as to the IACS device risk level for Question 3. 
Any advice on where I should be looking please ?]]> 2022-05-11 15:04:58 UTC https://padlet.com/steveallum/vksagw8ejrva/wish/2179593528