Hardware manual

3 Omron
2-107
Chap.2
3.5 Usable Devices
3.5.1 SYSMAC-C (when the PLC type setting is SYSMAC C Series)
・ Bit Device
Device Symbol
Device Name
HG PLC
Address Range
Read
/Write
Address
Gradual
Input/Output Internal
Relay
R CIO
0 - 99915,
120000 - 614315
R/W
Link Relay LR
LR
0 - 19915
R/W
Holding Relay HR
HR
0 - 51115
R/W
Auxiliary Memory
Relay
AR
AR
0 - 95915
R
Timer (contact) TIMC
TC
0 - 2047
R
Counter (contact) CNTC
TC
0 - 4095
R
・ Word Device
Device Symbol
Device Name
HG PLC
Address Range
Read
/Write
Address
Gradual
Input/Output Internal
Relay
WR CIO
0 - 999, 1200 - 6143
R/W
Link Relay WLR LR 0 - 199 R/W
Holding Relay WHR HR 0 - 511 R/W
Auxiliary Memory
Relay
WAR
AR
0 - 959
R
Timer (current value) TIMN TC 0 - 2047 R
Counter
(current value)
CNTN
TC
0 - 4095
R
Data Memory DM DM 0 - 9999 R/W
- Important points to note regarding setting performing Bit Write operations
- With a Bit Write operation, the word data is first read from the PLC, and a logic operation
(AND or OR) is performed on the relevant bit before writing it to the PLC to ensure
that the values of other bits in the same channel are preserved. However, be certain that
the PLC does not modify the data in the channel during the time that the MICRO/I is
writing the data.