3-7
Section
Error Processing
64
Special I/O Unit Restart Bits
Bits
Functions
C200HX/HG/HE
C200H/HS
28100
AR 0100
Unit #0 Restart Bit
Turning the Restart Bit
f
U i ON
d
28101
AR 0101
Unit #1 Restart Bit
g
for any Unit ON and
then OFF again
28102
AR 0102
Unit #2 Restart Bit
then OFF again
restarts that Unit.
28103
AR 0103
Unit #3 Restart Bit
restarts that Unit.
28104
AR 0104
Unit #4 Restart Bit
28105
AR 0105
Unit #5 Restart Bit
28106
AR 0106
Unit #6 Restart Bit
28107
AR 0107
Unit #7 Restart Bit
28108
AR 0108
Unit #8 Restart Bit
28109
AR 0109
Unit #9 Restart Bit
28110 (See note.)
---
Unit #A Restart Bit
28111 (See note.)
---
Unit #B Restart Bit
28112 (See note.)
---
Unit #C Restart Bit
28113 (See note.)
---
Unit #D Restart Bit
28114 (See note.)
---
Unit #E Restart Bit
28115 (See note.)
---
Unit #F Restart Bit
Note
SR bits 28110 to 28115 cannot be used wit C200HE, C200HX/HG-
CPU3
j
-E/4
j
-E PCs.
If the error is not cleared even after turning the Special I/O Unit Restart Bit ON
and then OFF again, then replace the Unit.
3-7-5 Troubleshooting
The following tables explain the probable causes of troubles that may occur, and
the countermeasures for dealing with them.
Probable Cause
Countermeasure
Page
The output is not set for being
used.
Set the output for being used.
50
The output hold function is in
operation.
Turn ON the Output Conversion
Enable Bit.
52
The conversion value is set outside
of the permissible range.
Set the data within the range.
39
Probable Cause
Countermeasure
Page
The output signal range setting is
wrong.
Correct the output signal range
setting.
50
The I/O specifications of the output
device do not match those of the
Analog Output Unit (e.g., input
signal range, input impedance).
Change the output device.
38
The offset or gain is not adjusted.
Adjust the offset or gain.
54
Probable Cause
Countermeasure
Page
The output signals are being
affected by external noise.
Try changing the shielded cable
connection (e.g., the grounding at
the output device).
44
Analog Output Does Not
Change
Output Does Not Change
as Intended
Outputs are Inconsistent