Data Exchange Settings - Omron CJ Series Operation Manual

Data Exchange with the CPU Unit
2-5-2

Data Exchange Settings

Data Format
Unit Number
Note
30
The format used to store data during data exchange between the CPU Unit
and Temperature Control Unit in the words allocated to the Temperature Con-
trol Unit in the CIO and DM Areas must be set in advance. The data format is
set using pin 3 on the DIP switch for function settings. It can be set to either 4-
digit BCD or 16-bit binary (4-digit hexadecimal). The same format is used for
user-set and system-set data and for the Special I/O Areas in both the CIO
and DM Area.
Pin 3
ON 16-bit binary
OFF (default) 4-digit BCD
The words allocated to the Temperature Control Unit in the CIO and DM
Areas are determined by the unit number set for the Temperature Control Unit
as a Special I/O Unit.
Switch Unit Words allocated in Special I/O
setting number Unit Area in CIO Area
0 0 CIO 2000 to CIO 2019
1 1 CIO 2010 to CIO 2029
2 2 CIO 2020 to CIO 2039
3 3 CIO 2030 to CIO 2049
4 4 CIO 2040 to CIO 2059
5 5 CIO 2050 to CIO 2069
6 6 CIO 2060 to CIO 2079
7 7 CIO 2070 to CIO 2089
8 8 CIO 2080 to CIO 2099
9 9 CIO 2090 to CIO 2109
: : :
n n CIO 2000 + (n x 10) to
CIO 2000 + (n x 10) + 19
: : :
94 94 CIO 2940 to CIO 2959
1. If two or more Special I/O Units are assigned the same unit number, an
"UNIT No. DPL ERR" error (in the Programming Console) will be generat-
ed (A40113 will turn ON) and the PLC will not operate.
2. Each Temperature Control Unit is allocated the words for two unit numbers.
Do not use assign the unit number after one assigned to a Temperature
Control Unit to any other Unit. For example, if unit number 5 is allocated to
a Temperature Control Unit, the words for both unit number 5 and 6 will be
allocated to it, and unit number 6 must not be assigned to any other Unit.
Data storage format
Words allocated in Special I/O
D20000 to D20099
D20100 to D20199
D20200 to D20299
D20300 to D20399
D20400 to D20499
D20500 to D20599
D20600 to D20699
D20700 to D20799
D20800 to D20899
D20900 to D20999
:
D20000 + (n x 100) to
D20000 + (n x 100) + 99
:
D29400 to D29499
Section 2-5
Unit Area in DM Area