David,
Based on my limited experience with Integrator 30's, I would recommend not
phasing the compounds. Leave them all at PERIOD 1, PHASE 0. I would phase
the ABSCAN's, and then phase each block under each ABSCAN with the same
PERIOD and PHASE as its corresponding ABSCAN. This should be allowed by the
ICC, and will spread out the loading. We do that here with MG30's, which
are similar devices.
Tim
-----Original Message-----
From: David Johnson [SMTP:[EMAIL PROTECTED]]
Sent: Monday, June 19, 2000 9:43 AM
To: [EMAIL PROTECTED]
Subject: Trouble with phasing blocks in an AB Integrator30
I have had some strange results recently when trying to phase some
compounds in an AB Integrator 30.
Here are the particulars.
The Integrator is running with a Base Processing Cycle (BPC) of 1
second.
Most of the existing COMPOUNDS are running with a PERIOD 1 PHASE 0.
(That should be every second, on phase 0)
Most of the BLOCKS in the existing compounds are running with a
PERIOD 3
PHASE 0.
(That should be every two seconds, on phase 0)
All of this is working correctly.
We added a COMPOUND with a PERIOD 3 PHASE 1.
(That should be every two seconds, on phase 1)
The BLOCKS in the new compound are PERIOD 3 PHASE 1.
(That should be every two seconds, on phase 1)
This PERIOD, PHASE combination is acceptable to the control
configurator.
However, the ABSCAN block will not successfully connect and read
data from
the PLC at this PERIOD (3) and PHASE (1). If I change the PHASE to
a 0 on
these COMPOUNDs and BLOCKs every thing works. But having everything
PHASED
at 0 causes issues with the station loading.
I hope some of you can shed some light on this mystery for me.
Thanks,
David Johnson
[EMAIL PROTECTED]
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