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103
0000
LD
1813
0001
MOV(21)
#
0905
DM
32
0002
MOV(21)
#
1150
DM
33
0003
MOV(21)
#
1450
DM
34
0004
MOV(21)
#
1550
DM
35
0005
LD
1815
0006
OR
0005
0007
OUT
1807
0008
LD
0002
0009
HDM(61)
47
HR
0
0010
LD
HR
000
0011
AND NOT
0011
0012
LD
HR
001
0013
AND
0011
0014
OR LD
0015
AND
0006
0016
OR
0100
0017
AND NOT
0005
0018
OUT
0100
0019
LD
0005
0020
AND
0003
0021
OR
0102
0022
AND NOT
0100
0023
AND NOT
0004
0024
OUT
0102
0025
LD
0004
0026
AND NOT
0102
0027
OR
0103
0028
AND NOT
0003
0029
OUT
0103
0030
LD
0003
0031
DIFU(13)
1000
0032
LD
1000
0033
AND
0005
0034
OR
0101
0035
AND NOT
0006
0036
OUT
0101
Address
Instruction
Operands
Address
Instruction
Operands
5-11-7
REVERSIBLE DRUM COUNTER – RDM(60)
N: TC number
Must be 46
Ladder Symbol
Definer Values
R: Result word
IR, HR, DM
Operand Data Areas
RDM(60) N
R
If any of the lower limits for the DM ranges are set to “0000,” the correspond-
ing output bits are turned ON when the counter is reset.
The reversible drum counter is a ring counter with a counting range of 0000
to 9999. It requires three input signals to operate: a count input, reset input,
and UP/DOWN selection input. For these inputs, SR bits 1804 to 1806 are
reserved and cannot be used for any other purpose while the RDM(60) is
being used.
Operation is enabled when RDM(60) is executed with an ON execution con-
dition. RDM(60) increments when the UP/DOWN selection input (1806) is
OFF. When this input is ON, RDM(60) decrements. Incrementing or decre-
menting occurs on the rising edge of the count input signal. When RDM(60)
is executed by the CPU, the value in the counter buffer is transferred to CNT
46.
Limitations
Description
Timer and Counter Instructions
Section 5-11
Summary of Contents for SYSMAC C20K
Page 1: ...Cat No W146 E1 5 Programmable Controllers SYSMAC C20K C28K C40K C60K ...
Page 2: ...K type Programmable Controllers OPERATION MANUAL Revised July 1999 ...
Page 3: ...iv ...
Page 5: ...vi ...
Page 19: ...7 SECTION 2 Hardware Considerations 2 1 Introduction 2 2 Indicators 2 3 PC Configuration ...