C500BC031 Omron, C500BC031 Datasheet - Page 70

• 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

C120 (3G2A6) Host Link Units
2-3-5
Host Link Unit Restart Bit
Host Link Unit Error Flag
54
C120 (3G2A6)
* CM: CPU-mounting Host Link Unit
Bit 15 Bit 14
Restart Bits and Error Flags
Bit 13
!
Caution
Bit 12
Note 1. When the Host Link Unit Restart bit is turned ON, the Host Link Unit Error
Bit 11
Host Link Units use some of the Special Relay (SR) area and Auxiliary Relay
(AR) area bits of the PC to restart the communications control program of the
Host Link Unit and to indicate the occurrence of communications errors between
the Unit and the computer. The word (Wd) addresses and bit numbers of these
bits are as follows:
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. The error indicator on the front panel of the Unit lights while this flag is
ON.
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. To reset error condition on the Host Link Unit, disconnect and then reconnect
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.
the power to the PC.
Restart bit
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 2-3
Bit 1
Bit 0