Estimate maximum output scan time, Estimate output scan time plus processor overhead, Troubleshooting – Rockwell Automation 1747-PCIS2 PCI Bus Card User Manual
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PCI Bus Card for 1746 Local I/O
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Publication 1747-5.31–April 1998
Estimate Maximum Output Scan Time
Estimate Output Scan Time Plus Processor Overhead
Troubleshooting
Use the utilites disk that came in this package for troubleshooting.
The diagnostic/utility disk has a readme.txt file that explains the utilities
on the disk and directions on how to execute them.
We recommend that you make the diagnostic/utility disk bootable (use
the DOS
SYS
command) so you can run diagnostic utilities directly from
a floppy drive in the PC. The PCI bus card must have the base memory
address jumper set for DOS (1 Meg position).
The diagnostic utility disk contains these utilities:
Quantity
Fixed Scan
Time
Total
Minimum Input Scan Time
(from above table)
Maximum Specialty I/O Output Scan Time
number of class 1 specialty I/O modules:
number of class 3 and 4 specialty I/O modules:
X 50 =
X 200 =
Maximum Output Scan Time (total)
Minimum or Maximum Output Scan Time
(from previous tables)
Overhead if DII Enabled
60
Processor Overhead
minimum = 140
maximum = 200
Output Scan Time Plus Processor Overhead (total)
This utility selection:
Uses this executable:
scanner diagnostics
ocdiag.exe
PCI backplane/card utility
pcisid.exe