Publication 1747-UM013B-EN-P - January 2005
A-2
Specifications
Throughput Introduction
RIO throughput is defined as the time between when an input event
occurs at an I/O module in an RIO chassis to when an output event
occurs at an I/O module within the same RIO chassis. There are three
types of throughput concerning the 1747-SN Series B Scanner and its
RIO network:
•
discrete throughput (time from discretely mapped input to
discretely mapped output)
without
block transfers (BTs) present
•
discrete throughput (time from discretely mapped input to
discretely mapped output)
with
BTs present
•
BT throughput (time from when a BT is enabled to when the BT
successfully completes)
RIO Network Throughput Components
The following components affect RIO network throughput:
•
the total SLC processor scan time
•
the total RIO link scan time
•
adapter(s) backplane scan time(s)
•
the scanner’s output delay time
•
the scanner’s input delay time
•
input module delay times
•
output module delay times
Table A.2 DIP Switch Position for Baud Rate Selection
Baud Rate
DIP Switch Position
Switch 1
Switch 2
57.6K baud
on
on
115.2K baud
on
off
230.4K baud
off
on
230.4K baud
off
off
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