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We are going to build a critical Data acquisition and control system. We are currently in the system design stage. We are considering a PLC based system. but it is posing some implementation problems.
Our control system is required to be interfaced to GPIB devices and we are considering Ethernet to GPIB converters for driving these GPIB based
devices. Most of the drivers for ENET-GPIB converters are available for Windows platforms. So we are forced to think for an alternative like a PC based system on Win NT or so.
I have read somewhere else not through this
site about reliability of Win NT based system and I am of the view that Win NT may crash at any time so not reliable for critical control systems.
Even VxWorks is also not ruled out but then again ENET-GPIB driver is not available and we have to develop a driver. More over VxOPC (OPC compatible
product on VxWorks) is extremely costly. So that is the reason we are assessing the reliability and performance of a control system on NT platform.
What do you automation guys comment on the reliability of such a control system running on NT. Are there any critical systems built on NT providing performance like PLC?
Prem Sharma
Our control system is required to be interfaced to GPIB devices and we are considering Ethernet to GPIB converters for driving these GPIB based
devices. Most of the drivers for ENET-GPIB converters are available for Windows platforms. So we are forced to think for an alternative like a PC based system on Win NT or so.
I have read somewhere else not through this
site about reliability of Win NT based system and I am of the view that Win NT may crash at any time so not reliable for critical control systems.
Even VxWorks is also not ruled out but then again ENET-GPIB driver is not available and we have to develop a driver. More over VxOPC (OPC compatible
product on VxWorks) is extremely costly. So that is the reason we are assessing the reliability and performance of a control system on NT platform.
What do you automation guys comment on the reliability of such a control system running on NT. Are there any critical systems built on NT providing performance like PLC?
Prem Sharma