Omron SYSMAC CQM1H Series, Programming Manual

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Appendix C
Memory Areas
Memory Area Structure
The following memory areas can be used with the CQM1H.
Data area Size Words Bits Function
IR area
(note 1) Input area 256 bits IR 000 to
IR 015
IR 00000 to
IR 01515 Input bits can be allocated to Input Units or I/O Units. The 16
bits in IR 000 are always allocated to the CPU Unit’s built-in
inputs.
Output area 256 bits IR 100 to
IR 115
IR 10000 to
IR 11515 Output bits can be allocated to Output Units or I/O Units.
Work areas 2,528
bits min.
(note 2) IR 016 to
IR 089 IR 01600 to
IR 08915 Work bits do not have any specific function, and they can be
freely used within the program.
IR 116 to
IR 189 IR 11600 to
IR 18915
IR 216 to
IR 219 IR 21600 to
IR 21915
IR 224 to
IR 229 IR 22400 to
IR 22915
Controller Link status
areas 96 bits IR 090 to
IR 095 IR 09000 to
IR 09615 Used to indicate the Controller Link Data Link status infor-
mation. (Can be used as work bits when a Controller Link
Unit is not mounted.)
96 bits IR 190 to
IR 195 IR 19000 to
IR 19615 Used to indicate the Controller Link error and network partic-
ipation information. (Can be used as work bits when a Con-
troller Link Unit is not mounted.)
MACRO
operand
area
(note 1) Input area 64 bits IR 096 to
IR 099 IR 09600 to
IR 09915 Used when the MACRO instruction, MCRO(99), is used.
(Can be used as work bits when the MACRO instruction is
not used.)
Output area 64 bits IR 196 to
IR 199 IR 19600 to
IR 19915
Inner Board slot 1 area 256 bits IR 200 to
IR 215
IR 20000 to
IR 21515 These bits are allocated to the Inner Board mounted in slot 1
of the CQM1H-CPU51/61. (Can be used as work bits when
the CQM1H-CPU11/CPU21 is being used or slot 1 is empty.)
CQM1H-CTB41 High-speed Counter Board:
IR 200 to IR 213 (14 words): Used by the Board
IR 214 and IR 215 (2 words): Not used.
CQM1H-SCB41 Serial Communications Board:
IR 200 to IR 207 (8 words): Used by the Board
IR 208 to IR 215 (8 words): Not used.
Analog settings area
(note 1) 64 bits IR 220 to
IR 223 IR 22000 to
IR 22315 Used to store the analog settings when the CQM1H-AVB41
Analog Setting Board is mounted. (Can be used as work bits
when an Analog Setting Board is not mounted.)
High-speed Counter 0
PV (note 1) 32 bits IR 230 to
IR 231 IR 23000 to
IR 23115 Used to store the present values of the built-in high-speed
counter (high-speed counter 0). (Can be used as work bits
when high-speed counter 0 is not being used.)