Omron C200HW-PRM21 Operation Manuals page 70

Unit Settings
Setting values in BCD
Words vs. Bytes
CS1-series
54
The table below lists the DM words for configuring the I/O data mapping, with
the possible values and their meaning.
Except for the definition of the start address in the PLC CPU, all values are in
BCD. To be able to distinguish between start addresses in different PLC
memory areas, the first digit of the 'start address' indicates the PLC memory
area, the following three digits indicate the address in the PLC memory area
in BCD format.
Note that data allocation in the PLC memory is in WORD units, whereas the
allocation in the Unit's buffers is in BYTE units (1 word = 2 bytes). The start
address in an I/O data buffer area must always be even. Odd-valued entries
will generate a setting error.
For details on I/O data mapping on CS1-series PLC's, see Appendix C.
DM word Value
m Number of output data areas
0000
0001
0002
other
Output area 1 : start address in the output buffer
m+1
0000 ~ 0510
other
Output area 1 : start address in the CPU
m+2
0000 ~ 4095
0000 ~ 5999
A000 ~ A235
A300 ~ A511
B000 ~ B099
C000 ~ C063
other
m+3 Output area 1 : size
0000 ~ 0100
other
m+4 see m+1
m+5 see m+2
m+6 see m+3
Meaning
Default mapping
C200HS:
PLC addresses IR050 ~ IR081 are mapped to
Unit output buffer bytes 000 ~ 063
C200HE,C200HG,C200HX:
PLC addresses IR050 ~ IR099 are mapped to
Unit output buffer bytes 000 ~ 099
One user-defined data output area
Two user-defined data output areas
Default mapping (see value 0000)
Byte 000 ~ 510 (even) in output buffer of the Unit
1
Setting error * , output area is ignored
DM0000 ~ DM4095 (C200HE-CPU11)
DM0000 ~ DM5999 (all other CPUs)
IR000 ~ IR235
IR300 ~ IR511
HR00 ~ HR99
LR00 ~ LR63
1
Setting error * , output area is ignored
0000 ~ 0100 words to be transferred from PLC to
2
Unit output buffer *
1
Setting error * , output area is ignored
Output area 2 : start address in the output buffer
Output area 2 : start address in the CPU
Output area 2 : size
Section 5-1
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