Omron CPM1 Programming Manual

232
Shift Instructions Section 5-16
Limitations DM 6144 to DM 6655 cannot be used for Wd.
Description When the execution condition is OFF, ROL(27) is not executed. When the exe-
cution condition is ON, ROL(27) shifts all Wd bits one bit to the left, shifting
CY into bit 00 of Wd and shifting bit 15 of Wd into CY.
Precautions Use STC(41) to set the status of CY or CLC(41) to clear the status of CY
before doing a rotate operation to ensure that CY contains the proper status
before executing ROL(27).
CY will be shifted into bit 00 every cycle if the undifferentiated form of ROL(27)
is used. Use the differentiated form (@ROL(27)) or combine ROL(27) 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 15.
EQ: ON when the content of Wd is zero; otherwise OFF.
5-16-6 ROTATE RIGHT – ROR(28)
Limitations DM 6144 to DM 6655 cannot be used for Wd.
Description When the execution condition is OFF, ROR(28) is not executed. When the
execution condition is ON, ROR(28) shifts all Wd bits one bit to the right, shift-
ing CY into bit 15 of Wd and shifting bit 00 of Wd into CY.
Precautions Use STC(41) to set the status of CY or CLC(41) to clear the status of CY
before doing a rotate operation to ensure that CY contains the proper status
before execution ROR(28).
CY will be shifted into bit 15 every cycle if the undifferentiated form of
ROR(28) is used. Use the differentiated form (@ROR(28)) or combine
ROR(28) 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.
1 0 1 1 0 0 1 1 1 0 0 0 1 1 0 10
CY
Bit
00
Bit
15
Wd: Rotate word
IR, SR, AR, DM, HR, LR
Ladder Symbols Operand Data Areas
ROR(28)
Wd
@ROR(28)
Wd
0 1 0 1 0 1 0 0 0 1 1 1 0 0 0 10
Bit
15
Bit
00
CY

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)