Omron CPM1 Programming Manual

231
Shift Instructions Section 5-16
Description When the execution condition is OFF, ASL(25) is not executed. When the exe-
cution condition is ON, ASL(25) shifts a 0 into bit 00 of Wd, shifts the bits of
Wd one bit to the left, and shifts the status of bit 15 into CY.
Precautions A 0 will be shifted into bit 00 every cycle if the undifferentiated form of ASL(25)
is used. Use the differentiated form (@ASL(25)) or combine ASL(25) with
DIFU(13) or DIFD(14) to shift just one time.
Flags ER: Indirectly addressed DM word is non-existent. (Content of *DM word
is not BCD, or the DM area boundary has been exceeded.)
CY: Receives the status of bit 15.
EQ: ON when the content of Wd is zero; otherwise OFF.
5-16-4 ARITHMETIC SHIFT RIGHT – ASR(26)
Limitations DM 6144 to DM 6655 cannot be used for Wd.
Description When the execution condition is OFF, ASR(25) is not executed. When the exe-
cution condition is ON, ASR(25) shifts a 0 into bit 15 of Wd, shifts the bits of
Wd one bit to the right, and shifts the status of bit 00 into CY.
Precautions A 0 will be shifted into bit 15 every cycle if the undifferentiated form of
ASR(26) is used. Use the differentiated form (@ASR(26)) or combine
ASR(26) with DIFU(13) or DIFD(14) to shift just one time.
Flags ER: Indirectly addressed DM word is non-existent. (Content of *DM word
is not BCD, or the DM area boundary has been exceeded.)
CY: Receives the data of bit 00.
EQ: ON when the content of Wd is zero; otherwise OFF.
5-16-5 ROTATE LEFT – ROL(27)
1 0 0 1 1 1 0 0 0 1 0 1 0 0 1 1
CY
Bit
00
Bit
15
0
Wd: Shift word
IR, SR, AR, DM, HR, LR
Ladder Symbols Operand Data Areas
ASR(26)
Wd
@ASR(26)
Wd
1 0 0 1 0 1 1 0 0 1 1 0 0 1 01
Bit
00
Bit
15
CY
0
Wd: Rotate word
IR, SR, AR, DM, HR, LR
Ladder Symbols Operand Data Areas
ROL(27)
Wd
@ROL(27)
Wd

Omron CPM1 Specifications

General

Model	CPM1
Manufacturer	Omron
Instruction Set	Basic and advanced instructions
Power Supply	100 to 240 VAC or 24 VDC
Communication	RS-232C
I/O Points	10, 20, 30, or 40 points depending on the model
Timers	Yes, multiple timers available
Counters	Yes, multiple counters available
Input Voltage	24V DC
Output Type	Relay or transistor
Number of I/O Points	10, 20, 30, 40
Communication Ports	RS-232C (optional)
Operating Temperature	0°C to 55°C
Storage Temperature	-20°C
Humidity	10% to 90% (non-condensing)
Dimensions	Varies depending on the model
Weight	Varies depending on the model
Program Memory	2048 steps (2K steps)