Troubleshooting; Programming - Omron SYSMAC C200H-DA002 Operation Manual

Troubleshooting

3-2-1 Programming

Word Allocation
Program Example
3-3

Troubleshooting

Error Detection
Unit error
RUN indicator not lit The RUN indicator on the Unit is not lit even though
power is turned on to the PC, and none of the errors
described in this table have occurred.
42
Note When the –10 to +10 V range is being used, the 15
value of 0 indicates "+" and a value of 1 indicates "–."
Use the MOV(21) instruction to write output data (binary data) from the CPU to
the Analog Output Unit.
This program example uses the following settings:
• Unit number: 0 (Words IR 100 to IR 103 are allocated to unit number 0.)
• The following table shows the DM words that contain the output data.
Output number
Output 1
Output 2
Output 3
Output 4
Input condition
Input condition
Input condition
Input condition
When an error occurs in an input or in the Unit itself, the error is indicated by an
output to a flag in the IR, SR, or AR area. The following tables show the various
errors that may occur, along with their probable causes and remedies.
Probable causes and operations
th
DM word
DM 0000
DM 0001
DM 0002
DM 0003
MOV(21)
Moves the binary content of
DM 0000 to IR 100, causing the
DM 0000
data to be converted to analog
100
signals and to be sent to output 1.
Moves the binary content of
MOV(21)
DM 0001 to IR 101, causing the
DM 0001
data to be converted to analog
101
signals and to be sent to output 2.
MOV(21)
Moves the binary content of
DM 0002 to IR 102, causing the
DM 0002
data to be converted to analog
102
signals and to be sent to output 3.
Moves the binary content of
MOV(21)
DM 0003 to IR 103, causing the
DM 0003
data to be converted to analog
103
signals and to be sent to output 4.
Possible remedies
Replace the Unit.
Section 3-3
bit serves as the sign bit. A