C500BC061 Omron, C500BC061 Datasheet - Page 73

• Manufacturer Part Number: C500BC061
• Description: BACKPLANE
• Manufacturer: Omron

Specifications of C500BC061

• Leaded Process Compatible: No
• Peak Reflow Compatible (260 C): No
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Installing and Removing Host Link Units
Maximum response time =
2-4
Maximum Response Time
Installation of a
CPU-mounting Host Link
Unit
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
Installing and Removing Host Link Units
I/O refresh
1, 2, 3... 1.
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
Note Never install or remove Rack-mounting Host Link Units when the power supply
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 until the next cycle). The
equation for the maximum response time is given below the diagram.
This section explains the proper installation and removal of CPU-mounting Host
Link Units.
is on.
Follow the procedure below when installing a CPU-mounting Host Link Unit on a
PC.
2.
Remove the Connecting Cables.
Recheck the settings of the DIP switches on the back of the Unit.
In particular, check the RUN/STOP switch. If the switch is set to RUN, the
PC might begin operating when the Host Link Unit is inserted. The PC’s
mode will not change if the switch is set to STOP.
Refer to 2-1-4 PC Operating Modes for details on the Host Link Unit’s effect
on the PC’s mode.
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 2-4
output signal
CPU writes
Response
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