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76
SR Area
Section 4-3
Note Input bits IR 00108 to IR 00111 reflect the status of the DIP switch on the
CPU Board.
4-3
SR Area
These bits mainly serve as flags related to CPM2A/CPM2C operation or con-
tain present and set values for various functions. The functions of the SR Area
are explained in the following table.
Note “Read-only” words and bits can be read as status in controller PLC operation,
but they cannot be written from the ladder program. Bits and words that are
“Not used” are also read-only.
Word(s)
Bit(s)
Function
Read/
write
SR 228,
SR 229
00 to 15
Pulse Output PV 0
Contains the pulse output PV (–16,777,215 to 16,777,215). SR 22915 acts as the sign bit;
a negative number is indicated when SR 22915 is ON.
(The same PV data can be read immediately with PRV(62).)
Only Pulse Output PV 0 is used for ACC(––).
Read-
only
SR 230,
SR 231
00 to 15
Pulse Output PV 1
Contains the pulse output PV (–16,777,215 to 16,777,215). SR 23115 acts as the sign bit;
a negative number is indicated when SR 23115 is ON.
(The same PV data can be read immediately with PRV(62).)
SR 232
to
SR 235
00 to 15
Macro Function Input Area
Contains the input operands for MCRO(99).
(Can be used as work bits when MCRO(99) is not used.)
Read/
write
SR 236
to
SR 239
00 to 15
Macro Function Output Area
Contains the output operands for MCRO(99).
(Can be used as work bits when MCRO(99) is not used.)
SR 240
00 to 15
Interrupt Input 00003 Counter Mode SV
SV when interrupt input 00003 is used in counter mode (4 digits hexadecimal).
(Can be used as work bits when interrupt input 00003 is not used in counter mode.)
SR 241
00 to 15
Interrupt Input 00004 Counter Mode SV
SV when interrupt input 00004 is used in counter mode (4 digits hexadecimal).
(Can be used as work bits when interrupt input 00004 is not used in counter mode.)
SR 242
00 to 15
Interrupt Input 00005 Counter Mode SV
SV when interrupt input 00005 is used in counter mode (4 digits hexadecimal).
(Can be used as work bits when interrupt input 00005 is not used in counter mode.)
SR 243
00 to 15
Interrupt Input 00006 Counter Mode SV
SV when interrupt input 00006 is used in counter mode (4 digits hexadecimal).
(Can be used as work bits when interrupt input 00006 is not used in counter mode.)
SR 244
00 to 15
Interrupt Input 00003 Counter Mode PV
Counter PV when interrupt input 00003 is used in counter mode (4 digits hexadecimal).
SR 245
00 to 15
Interrupt Input 00004 Counter Mode PV
Counter PV when interrupt input 00004 is used in counter mode (4 digits hexadecimal).
SR 246
00 to 15
Interrupt Input 00005 Counter Mode PV
Counter PV when interrupt input 00005 is used in counter mode (4 digits hexadecimal).
SR 247
00 to 15
Interrupt Input 00006 Counter Mode PV
Counter PV when interrupt input 00006 is used in counter mode (4 digits hexadecimal).
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