Omron SYSMAC C1000H, Руководство по эксплуатации

Страница: 356 / 396

353
Appendix E
Data Areas
The data areas in the C1000H and C2000H are summarized below. These are the same for both PCs unless
specified. Only dedicated bits are shown specifically. The use of all other bits is determined either by the Sys-
tem the PC is involved in, e.g., PC Link or SYSMAC LINK Systems use the LR area, or by the programmer,
e.g., storage of data in the DM area.
In the following table, prefixes are included with bit and word addresses when inputting them is required to
designate the area, i.e., bits input without a prefix are considered to be IR or SR bits.
Area Bits Words Notes
IR 00000 to 23600 000 to 236 Possible for I/O bits
C1000H without Remote I/O 00000 to 06315 . . . . . . . . . .
Remote I/O with C1000H 06400 to 12700 . . . . . . . . . . . .
C2000H (with or without Remote I/O) 00000 to 12700 . .
IR area work bits
12700 to 23600 plus any I/O bits not used for I/O.
SR 24700 to 25515 247 to 255 SR bits are dedicated for specific purposes. Unused bits
are not available for programmer use. 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
manipulation. The HR area maintains data 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.
Unused 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 transmission in PC Link and
SYSMAC LINK Systems. When the PC does not contain
either of these Systems, LR bits may be used as work
bits.
DM Not accessible as
bits. C1000H:
DM 0000 to DM 4095
C2000H:
DM 0000 to DM 6655 DM words are basically used for data storage.
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. In general, when used as
a bit operand, 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 (TC 0 to TR 7) Not accessible as words. TR bits can only be used in the Load and Output
instructions to store and retrieve execution conditions.
Storing and retrieving execution conditions is necessary
when programming certain types of branching ladder
diagrams.