Omron CPM2A - 11-2005, Руководство пользователя

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1-5 Section Comparison with the CPM1A
21
1-5 Comparison with the CPM1A
Item CPM2A CPM1A
Instruction set
Basic instructions 14 Same as CPM2A.
Special instructions 105 instructions, 185 variations 79 instructions, 139 variations
Instruction
i i
Basic instructions LD: 0.64
µ
s LD: 1.72
µ
s
execution times
Special instructions MOV(21): 7.8
µ
s MOV(21): 16.3
µ
s
Program capacity 4,096 words 2,048 words
Maximum number
f I/O i
Stand-alone CPU Unit 30, 40, or 60 points 10, 20, 30, or 40 points
of I/O points
CPU Unit with Expansion I/O
Units 90, 100, or 120 points max. 90 or 100 points max.
Expansion Units
and Expansion I/O
Units Maximum number of Units A maximum of 3 Units can be
connected to any of the CPU
Units.
(If the CPM1A-TS002/102 is
connected, the maximum is 2.) A maximum of 3 Units can be
connected to the 30-point and
40-point CPU Units.
Available models Expansion I/O Units,
Analog I/O Unit, Temperature
Sensor Units, CompoBus/S I/O
Link Unit, and DeviceNet I/O
Link Unit Same as CPM2A.
I/O memory Input bits IR 00000 to IR 00915 Same as CPM2A. y
Output bits IR 01000 to IR 01915 Same as CPM2A.
Work bits 928 bits:
IR 02000 to IR 04915,
IR 20000 to IR 22715 512 bits:
IR 20000 to IR 23115
SR (Special Relay) area 448 bits:
SR 22800 to SR 25515 384 bits:
SR 23200 to SR 25515
TR (Temporary Relay) area 8 bits: TR0 to TR7 Same as CPM2A.
HR (Holding Relay) area 320 bits:
HR 0000 to HR 1915 Same as CPM2A.
AR (Auxiliary Relay) area 384 bits:
AR 0000 to AR 2315 256 bits:
AR 0000 to AR 1515
LR (Link Relay) area 256 bits:
LR 0000 to LR 1515 Same as CPM2A.
Timer/Counter area 256 bits:
TIM/CNT 0 to TIM/CNT 256 128 bits:
TIM/CNT 0 to TIM/CNT 127
DM (Data
Memory) area Read/write
area 2,048 words
(DM 0000 to DM 2047) 1,024 words
(DM 0000 to DM 1023)
e o y) a ea
Read-only
area 456 words
(DM 6144 to DM 6599) Same as CPM2A.
PC Setup 56 words
(DM 6600 to DM 6655) Same as CPM2A.
Memory backup Program area, read-only DM
area (including PC Setup) Flash memory backup Same as CPM2A.
Read/write DM area, HR area,
AR area, and counters Internal battery backup
(5-year lifetime, replaceable) Capacitor backup
(20-day backup at 25
°
C)
Interrupt inputs (interrupt input mode) 4 Same as CPM2A.
Interrupt inputs
(counter mode)
Counter mode Incrementing counter
Decrementing counter Decrementing counter
(cou e ode)
Counter upper limit 2 kHz 1 kHz
SR 244 to SR 247 Contains counter PV. Contains counter PV–1.
Method(s) to read counter PV Read SR 244 to SR 247.
Execute PRV(62).
(Counter PV) Read SR 244 to SR 247.
(Counter PV – 1)
Method to change counter PV Execute INI(61). Not supported.