258
Conversion Instructions Section 5-19
5-18-9 DOUBLE AREA RANGE COMPARE – ZCPL(––)
Limitations This instruction is available in the CQM1-CPU4@-E/-EV1 only.
The 8-digit value in LL+1,LL must be less than or equal to UL+1,UL.
Description When the execution condition is OFF, ZCPL(––) is not executed. When the
execution condition is ON, ZCPL(––) compares the 8-digit value in CD, CD+1
to the range defined by lower limit LL+1,LL and upper limit UL+1,UL and out-
puts 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 ZCPL(––) 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 DM word is non-existent. (Content of *DM word
is not BCD, or the DM area boundary has been exceeded.)
LL+1,LL is greater than UL+1,UL.
EQ: ON if LL+1,LL
≤ CD, CD+1 ≤ UL+1,UL
LE: ON if CD, CD+1 < LL+1,LL.
GR: ON if CD, CD+1 > UL+1,UL.
5-19 Conversion Instructions
5-19-1 BCD-TO-BINARY – BIN(23)
Limitations DM 6144 to DM 6655 cannot be used for R.
CD: Compare data
IR, SR, AR, DM, HR, LR
LL: Lower limit of range
IR, SR, AR, DM, HR, LR
Ladder Symbol
Operand Data Areas
UL: Upper limit of range
IR, SR, AR, DM, HR, LR
ZCPL(––)
CD
LL
UL
Comparison result Flag status
GR
(SR 25505)
EQ
(SR 25506)
LE
(SR 25507)
CD , CD+1< LL+1,LL 0 0 1
LL+1,LL ≤ CD, CD+1 ≤ UL+1,UL 0 1 0
UL+1,UL < CD, CD+1 1 0 0
S: Source word (BCD)
IR, SR, AR, DM, HR, TC, LR
R: Result word
IR, SR, AR, DM, HR, LR
Ladder Symbols Operand Data Areas
BIN(23)
S
R
@BIN(23)
S
R
To Next Page
Loading...
Need help?
General
