C500BC031 Omron, C500BC031 Datasheet - Page 59

• Manufacturer Part Number: C500BC031
• Description: BACKPLANE
• Manufacturer: Omron

Specifications of C500BC031

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

C500 (3G2A5) Host Link Units
Host Link Unit Restart Bit
Host Link Unit Error Flag
2-2-6
C120
* CM: CPU-mounting Host Link Unit
Bit 15 Bit 14
I/O Response Time
Bit 13
!
Caution
Bit 12
Note 1. When the Host Link Unit Restart bit is turned ON, the Host Link Unit Error
Bit 11
When this bit is turned ON, the Host Link Unit is reset to its initial conditions, as if
the power had just been applied.
Do not turn this bit ON in the user program; doing so could cause the memory to
be lost.
This flag turns ON if a transmission error occurs between the PC and the Host
Link Unit. It turns ON the error indicator on the front of the Unit.
2. Set the Host Link Unit to LOCAL mode before force setting or force resetting
3. Communications between the Host Link Unit and the host computer will not
4. If a reset switch is provided, pressing it should reset the Host Link Unit and
5. If the Unit still won’t reset, disconnect and then reconnect the power to the
The processing that determines and the methods for calculating the minimum
and maximum times required from an input on one PC with a Host Link Unit to an
output on another PC with a Host Link Unit are described below. The transfer
between the PCs is handled through a host computer connected to both these
PCs.
Processing and calculations are described by PC model in the first subsection.
An example combining a C200H/HS/HX/HG/HE PC with a C1000H PC is in-
cluded in the C200H section. Although more precise equations may be written if
required, those used in the following calculations do not consider fractions of a
cycle.
The calculations used in this section assume that all host computer commands
and PC responses require no more than one host link servicing period to com-
plete transmission. To compute response times for situations involving a longer
command and/or response, the number of host link servicing periods (i.e., the
number of cycles) required to complete the command or response would have to
be incorporated into the equations.
Restart flag
Flag is turned OFF.
an error flag.
be resumed until the Restart bit is turned OFF. The initialization process is
repeated as long as the Restart bit is ON.
clear the error state.
PC.
Bit 10
CM*
restart
bit
Bit 9
Host Link Unit stops and stands by.
CM*
error
flag
Bit 8
Bit 7
Bit 6
Host Link Unit restarts.
Bit 5
ON(=1)
OFF(=0)
Bit 4
Bit 3
Bit 2
Section 2-2
Bit 1
Bit 0
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