Rockwell Automation 1747-PCIS2 PCI Bus Card - Manual (Page 10)

10 PCI Bus Card for 1746 Local I/O
Publication 1747-5.31–April 1998
Estimate Maximum Input Scan Time
Estimate Minimum Output Scan Time
Quantity Fixed Scan
Time Total
Minimum Input Scan Time
(from previous table)
Maximum Specialty I/O Input 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 Input Scan Time (total)
Quantity Fixed Scan
Time Total
Digital I/O Modules:
number of class 0 input words: X 46 =
Specialty I/O Modules (Class 1)
number of 1746-BAS modules (class 1):
number of 1746-NIO4V modules:
number of 1746-FIO4V modules:
number of 1746-NO4V modules:
X 500 =
X 277 =
X 277 =
X 330 =
Specialty I/O Modules (Class 3 and 4)
number of 1746-HSCE modules:
number of 1747-SN modules:
number of 1746-BAS modules (class 4):
X 608 =
X 1208 =
X 655 =
Forced Output Overhead
number of class 0 output words:
number of specialty output words:
number of specialty I/O modules:
X 6 =
X 9=
X 30 =
Output Scan Overhead (Add this time to the total from the I/O modules) 36
Minimum Input Scan Time (total)