Omron CPM1 Programming Manual

355
Advanced I/O Instructions Section 5-28
5-28-2 DIGITAL SWITCH INPUT – DSW(87)
Limitations This instruction is available in the CQM1 only.
DM 6144 to DM 6655 cannot be used for R.
Description DSW(87) is used to read the value set on a digital switch connected to I/O
Units. When the execution condition is OFF, DSW(87) is not executed. When
the execution condition is ON, DSW(87) reads the value (either 4 or 8-digit)
set on the digital switch from IW and places the result in R.
If the value is an 8-digit number, it is placed in R and R+1, with the most signif-
icant digits placed in R+1. The number of digits is set in DM 6639 of the PC
Setup.
DSW(87) reads the 4 or 8-digit data in 12 cycles, and then starts over and
continues reading the data.
Refer to page 124 for more information on DSW(87) and its applications.
Flags ER: IW and/or OW are not allocated to the correct I/O Units.
Indirectly addressed DM word is non-existent. (Content of *DM word
is not BCD, or the DM area boundary has been exceeded.)
R and R+1 are not in the same data area. (When the CQM1 is set to
receive 8-digit data.)
SR 25410: ON while DSW(87) is being executed.
5-28-3 HEXADECIMAL KEY INPUT – HKY(––)
Limitations This instruction is available in the CQM1 only.
D and D+2 must be in the same data area.
Do not use HKY(––) more than twice in the program.
DM 6144 to DM 6655 cannot be used for D.
IW: Input word
IR, SR, AR, DM, HR, TC, LR
Ladder Symbols Operand Data Areas
DSW(87)
IW
OW
R
R: First result word
IR, SR, AR, DM, HR, TC, LR
OW: Output word
IR, SR, AR, DM, HR, TC, LR
OW: Control signal output word
IR, SR, AR, DM, HR, TC, LR
IW: Input word
IR, SR, AR, DM, HR, TC, LR
Ladder Symbols Operand Data Areas
HKY(––)
IW
OW
D
D: First register word
IR, SR, AR, DM, HR, TC, LR

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)