Recently, one of my colleague has faced the problem that during running of system in normal condition, someone has pullout the failsafe module which triggered the ET200M failure.
As per our discussion few things came into the picture, that are showing as below:
1. Hot swapping is allowed only with Active bus modules.
2. Hot swapping is allowed only with S7-400 or S7-400H CPU or it’s successor.in S7-300 CPU further settings required.
3.Most important point to consider is that OB83 should be engineered within the program to prevent STOP mode when remove module from rack.
4. PCS7 has CIR functionality which can be enable for hot swapping and future expansion.
5. In case of Failsafe module, isolater should never been removed from the rack as it may result of ET200M rack failure.
1. Check that available ET200M and modules supports HOT SWAPPING or not. To see if your module supports this function, please consult the STEP 7 hardware configuration ( select the module in the catalog > the lower dialog box displays the support modules in plaintext) or in chapter 9 of the manual “SIMATIC Distributed Peripheral Deviced ET 200M”.
2. A requirement for this function is the use of an active backpanel bus. The conventional bus connectors (U piece) do not support this function since the backpanel bus is disconnected during the removal of a module.
3. Furthermore, you need at least a IM153-1 with the MLFB 6ES7 153-1AA02-0XB0.
Older modules, for example modules with the MLFB IM153-1AA00-0XB0 do not support this function.
Cloud services have become firmly entrenched in our everyday lives as we access more of what we do not through the hard drives on our computers, but through networks linked to our smartphones and tablets. The cloud is becoming an increasingly essential part of operating in industry as well, with more manufacturers taking advantage of the benefits of traveling light.
Now days almost all service provider companies are providing service on demand concept as in virtual world.
For example you can rent for software to work on demand and you dont need any hardware for that, it will work on public domain as service on demand.
Same you can hire a Server on rent in the cloud and you can do all your stuff. Its really forwarding the world towards a new generation technology.
Therefore now Process Industries also become attentive on cloud solutions and providing different type of solutions based on Cloud. Recently ABB Globalogix take oil and Gas Scada into the Cloud to provide a software-as-a-service (SaaS) SCADA based on ABB’s SCADAvantage product.Providing the SCADA through the cloud lowers upfront costs and reduces the operating risks and maintenance burden.
GlobaLogix has built a highly secure and redundant cloud-based infrastructure to host ABB’s SCADA platform.
1. The infrastructure provides access to 53 data centers in North America with 2,048 bit encryption that exceeds the current Department of Defense standards
2. The infrastructure also complies with the most stringent Tier 4 data center standards from the Telecommunications Industry Association (TIA) and American National Standards Institute (ANSI) for mission-critical computer systems.
3.The standard requires fully redundant subsystems and compartmentalized security zones.
4.Additional security is provided by Citrix authentication installed on each of the client’s laptops, desktops and tablets that provide access to the cloud-hosted SCADA system.
5. Field operators can optionally be provided with password-protected web access to read-only data and key information to reduce exposure to malicious attacks and prevent operator errors.