Omron CJ1W-PNT21 Operation Manual page 83

Allocated CIO Area Words
Bit Name
00 Reserved
01 Link status
02 Reserved
03 Hardware error
04~12 Reserved
13 Configuration error
14~15 Reserved
5-2-5 IO Device status (Word n+7)
15 14 13 12 11 10 9
Word n+6
/i
Status
---
The Ethernet Link status of the IO Controller is shown here. If the Unit can
not establish a link with another device at 100Mbps full-duplex then this bit
will be set.
OFF
ON
---
The Hardware error flag will be ON if an error has occurred on the bus, e.g.
faults when accessing the Ethernet controller or interrupted data streams,
and broken messages.
OFF
ON
---
The Configuration error flag will be turned to ON if an error has been
detected in the contents of the Configuration set.
OFF
ON
---
The IO Device status word presents all information on the IO Devices
allocated to the CJ1W-PNT21 Controller. Detailed information on the IO
Devices can be obtained by reading the alarm messages.
Contents of the 'IO Device status' word (Word n+7):
8 7 6 5 4 3 2 1
Figure 5.6: Word n+6
Unit operation
This bit will be set to OFF by the Unit.
There is an Ethernet cable connected to the port of
the IO Controller and a link was successfully created
to an IO Device, switch or other Ethernet device.
There is no Ethernet cable connected to the port of
the IO Controller or a link could not successfully
created to an IO Device, switch or other Ethernet
device.
This bit will be set to OFF by the Unit.
No hardware errors have occurred.
Hardware errors have occurred.
This bit will be set to OFF by the Unit.
No Configuration error has been detected.
One or more Configuration errors have been
detected.
This bit will be set to OFF by the Unit.
Section 5-2
0
Link status
Hardware error
Configuration error
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