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Digital inputs scan faster on the SCADAPack 575 I/O board than on the Controller?

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Jimi
Commander Commander
Commander
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2
1585

Digital inputs scan faster on the SCADAPack 575 I/O board than on the Controller?

Customer support question:

I found this in the SCADAPack 5xx manual:
Controller board => Timestamping => 10ms Sequence of Event (SOE)
I/O board => 1ms Sequence of Event (SOE)
Why is this? It seems like a mistake in the manual? Is it correct that the SOE on the IO board is faster than on the CPU? Seems illogical.

5xx manual.png

 

Global Training Manager
SCADA & Telemetry

Accepted Solutions
Jimi
Commander Commander
Commander
0 Likes
0
1584

Re: Digital inputs scan faster on the SCADAPack 575 I/O board than on the Controller?

Hello,

The manual is correct since the IO board is dedicated to handle timestamping at 1ms resolution.
The 575 controller board is operating on 1 core only which requires all executing tasks to be shared.

Global Training Manager
SCADA & Telemetry

See Answer In Context

BevanWeiss
Spock
Spock
0 Likes
0
1552

Re: Digital inputs scan faster on the SCADAPack 575 I/O board than on the Controller?

As @Jimi said, the IO on the 'CPU' board is not really targeted for use beyond as auxiliary IO.  These two inputs (and one output) are available on both the 570 and the 575.  If you require high speed detection then the dedicated IO boards (575 base IO, or 6601 IO) would be the recommended way forward.


Lead Control Systems Engineer for Alliance Automation (VIC).
All opinions are my own and do not represent the opinions or policies of my employer, or of my cat..

See Answer In Context

2 Replies 2
Jimi
Commander Commander
Commander
0 Likes
0
1585

Re: Digital inputs scan faster on the SCADAPack 575 I/O board than on the Controller?

Hello,

The manual is correct since the IO board is dedicated to handle timestamping at 1ms resolution.
The 575 controller board is operating on 1 core only which requires all executing tasks to be shared.

Global Training Manager
SCADA & Telemetry
BevanWeiss
Spock
Spock
0 Likes
0
1553

Re: Digital inputs scan faster on the SCADAPack 575 I/O board than on the Controller?

As @Jimi said, the IO on the 'CPU' board is not really targeted for use beyond as auxiliary IO.  These two inputs (and one output) are available on both the 570 and the 575.  If you require high speed detection then the dedicated IO boards (575 base IO, or 6601 IO) would be the recommended way forward.


Lead Control Systems Engineer for Alliance Automation (VIC).
All opinions are my own and do not represent the opinions or policies of my employer, or of my cat..