189
Exchanging Data with the CPU Unit Section 5-5
5-5-2 Unit Number Settings
The Special I/O Unit Area and Special I/O Unit DM Area word addresses that
each Analog Output Unit occupies are set by the unit number switch on the
front panel of the Unit.
Note If two or more Special I/O Units are assigned the same unit number, a “UNIT
No. DPL ERR” error (in the Programming Console) will be generated (A40113
will turn ON) and the PLC will not operate.
5-5-3 Special I/O Unit Restart Bits
To restart the Unit operations after changing the contents of the data memory
or correcting an error, turn ON the power to the PLC again or turn the Special
I/O Unit Restart Bit ON and then OFF again.
Note If the error is not corrected by restarting the Unit or turning the Special I/O
Unit Restart Bit ON and then OFF again, replace the Analog Output Unit.
Switch
setting
Unit
number
Special/O Unit Area
addresses
Special I/O Unit DM Area
addresses
0 Unit #0 CIO 2000 to CIO 2009 D20000 to D20099
1 Unit #1 CIO 2010 to CIO 2019 D20100 to D20199
2 Unit #2 CIO 2020 to CIO 2029 D20200 to D20299
3 Unit #3 CIO 2030 to CIO 2039 D20300 to D20399
4 Unit #4 CIO 2040 to CIO 2049 D20400 to D20499
5 Unit #5 CIO 2050 to CIO 2059 D20500 to D20599
6 Unit #6 CIO 2060 to CIO 2069 D20600 to D20699
7 Unit #7 CIO 2070 to CIO 2079 D20700 to D20799
8 Unit #8 CIO 2080 to CIO 2089 D20800 to D20899
9 Unit #9 CIO 2090 to CIO 2099 D20900 to D20999
10 Unit #10 CIO 2100 to CIO 2109 D21000 to D21099
~~ ~ ~
n Unit #n CIO 2000 + (n x 10) to
CIO 2000 + (n x 10) + 9
D20000 + (n x 100) to
D20000 + (n x 100) + 99
~~ ~ ~
95 Unit #95 CIO 2950 to CIO 2959 D29500 to D29599
MACH
No
.
10
1
10
0
0
9
8
7
6
5
4
3
2
1
0
9
8
7
6
5
4
3
2
1
Special I/O Unit
Area word
address
Function
A50200 Unit No. 0 Restart Bit Restarts the Unit when turned
ON and then OFF again.
A50201 Unit No. 1 Restart Bit
~~
A50215 Unit No. 15 Restart Bit
A50300 Unit No. 16 Restart Bit
~~
A50715 Unit No. 95 Restart Bit
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