Omron CQM1H - PROGRAM User Manual

289
Comparison Instructions Section 5-19
5-19-8 AREA RANGE COMPARE – ZCP(– –)
Limitations LL must be less than or equal to UL.
Description When the execution condition is OFF, ZCP(––) is not executed. When the exe-
cution condition is ON, ZCP(––) compares CD to the range defined by lower
limit LL and upper limit UL and outputs the result to the GR, EQ, and LE flags
in the SR area. The resulting flag status is shown in the following table.
Precautions Placing other instructions between ZCP(––) and the operation which
accesses the EQ, LE, and GR flags may change the status of these flags. Be
sure to access them before the desired status is changed.
Flags ER: Indirectly addressed EM/DM word is non-existent.
(Content of *EM/*DM word is not BCD, or the EM/DM area boundary
has been exceeded.)
LL is greater than UL.
EQ: ON if LL
≤ CD ≤ UL
LE: ON if CD < LL.
GR: ON if CD > UL.
CD: Compare data
IR, SR, AR, DM, EM, HR, TIM/CNT, LR, #
LL: Lower limit of range
IR, SR, AR, DM, EM, HR, TIM/CNT, LR, #
Ladder Symbol
Operand Data Areas
UL: Upper limit of range
IR, SR, AR, DM, EM, HR, TIM/CNT, LR, #
ZCP(−− )
CD
LL
UL
Comparison result Flag status
GR (SR 25505) EQ (SR 25506) LE (SR 25507)
CD < LL 0 0 1
LL ≤ CD ≤ UL 010
UL < CD 1 0 0

Omron CQM1H - PROGRAM Specifications

General

I/O Capacity	Up to 512 points
Power Supply	100 to 240 VAC, 50/60 Hz or 24 VDC (depending on model)
Instruction Set	Basic and advanced instructions
Operating Temperature	0 to 55°C
Program Capacity	7.2K to 15.2K steps
Communication Ports	RS-232C
Expansion Slots	Up to 3 expansion units
Type	Programmable Logic Controller (PLC)
CPU Type	RISC
Program Memory	7.2K to 15.2K steps
I/O Points	512 max
Expansion Capability	Up to 3 expansion units
Data Memory	RAM (battery backup)