Omron SYSMAC C200H, Руководство по эксплуатации

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Appendix E
Data Areas
The data areas in the C200H are summarized below. Prefixes are included with bit and word addresses when
inputting them is required to designate the area, i.e., bits/words input without a prefix are considered to be IR
or SR bits/words.
Area Bits Words Notes
IR 00000 to 23515 000 to 235 Words 000 through 029 are allocated to I/O Units on the
CPU and Expansion I/O Racks as needed. Words 050
through 231 are allocated to Special I/O Units and Units on
Remote I/O Racks as needed. Any of these words and the
remainder of the IR area is available for used as work bits.
SR 23600 to 25507 236 to 255 Bits 25200 to 25507 are dedicated for specific purposes.
and can not be used for other purposes. Bits 23600 to
25115 are available when not used for their assigned pur-
poses. In designating operands, the SR area is considered
as a continuation of the IR area. See tables of dedicated
bits following this table.
HR HR 0000 to
HR 9915 HR 00 to HR 99 HR bits are available for general data storage and manipu-
lation. The HR area maintains bit status when PC power is
turned off.
AR AR 0000 to
AR 2715 AR 00 to AR 27 AR bits are mostly dedicated for specific purposes. Un-
used AR bits may be used as works bits. See tables of
dedicated bits following this table.
LR LR 0000 to LR 6315 LR 00 to LR 63 LR bits are used for data exchange in PC Link Systems.
When the PC does not include a PC Link System, LR bits
may be used for SYSMAC LINK or SYSMAC NET Link
Systems. LR bits may be used as work bits when not used
for data links.
DM Not accessible as
bits. Read/write:
DM 0000 to DM 0999
Read only:
DM 1000 to DM 1999 DM 0000 through DM 0999 are generally used for data
storage. DM 0969 through DM 0999 are used in the Error
History function with the CPU11-E. DM 1000 through
DM 1999 are used for Special I/O Units.
TC (TC 000 to TC 511) (TC 000 to TC 511) The TC area consists of TC numbers used to manipulate
and access timers and counters. When used as a bit oper-
and, a TC number accesses the Completion Flag for the
timer or counter defined using the TC number. When used
as a word operand, the TC number accesses the present
value of the timer or counter.
TR (TR 0 to TR 7) Not accessible as words. TR bits can only be used in the LOAD and OUTPUT in-
structions to store and retrieve execution conditions. Stor-
ing and retrieving execution conditions is necessary when
programming certain types of branching ladder diagrams.