C500BC031 Omron, C500BC031 Datasheet - Page 61
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C500BC031
Manufacturer Part Number
C500BC031
Description
BACKPLANE
Manufacturer
Omron
Datasheet
1.C500BC031.pdf
(168 pages)
Specifications of C500BC031
Leaded Process Compatible
No
Peak Reflow Compatible (260 C)
No
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
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C500 (3G2A5) Host Link Units
Maximum response time =
Maximum Response Time
Host computer
Buffer for Host
Link Unit # 0
PC for Host
Link Unit # 0
Buffer for Host
Link Unit # 31
PC for Host
Link Unit # 31
Input
signal
Output
signal
I/O refresh
Input ON delay + Command transmission time + (Cycle time of PC for Unit #0 x 2) + Response
transmission time + Host computer processing time + Command transmission time + Cycle time of PC for
Unit #31 + Output ON delay
Input ON delay
Command
Cycle time
Command/response for Unit # 0
The data flow that will produce the maximum response time is shown below. De-
lays over the minimum response time occur because the input to be transferred
through the host computer is received immediately following the I/O refresh peri-
od (requiring a wait to the next cycle) and because the command from the host
computer to write the bit to be output from PC for Unit #31 is received immediate-
ly following host link servicing (again requiring a wait to the next cycle). The
equation for the maximum response time is given below the diagram.
CPU reads
input signal
Cycle time
Response
Host link service
I/O response time
Host computer
processing time
Host link service
Command
Cycle time
Command/response for Unit # 31
I/O refresh
Cycle time
Output ON delay
Section 2-2
output signal
CPU writes
Response
45
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