Eaton ELC-PB, Programming Manual

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3 . I n s t r u c t i o n S e t
M N 0 5 0 0 3 0 0 3 E F or m o r e i nf o r m a t i o n v i s i t : www. e a t o n. c o m
3-439
API Mnemonic Operands Function
186 MBRD P
S, n, D
Matrix Bit Read
Bit Devices Word devices Program Steps
Type
OP
X Y M S K H KnX KnY KnM KnS T C D E F
S * * * * * * *
n * * *
D * * * * * * * *
MBRD, MBRDP: 7 steps
ELC ELCB ELCM
PB PC/PA/PH PV PB PH/PA
32 16 P 32 16 P 32 16 P 32 16 P 32 16 P
Operands:
S
: matrix source address
n
: matrix length (K1~K256).
D
: pointer to where the target address is
saved
Description:
1. When executing the instruction, it will look at M1094 (matrix pointer clear flag) to see if it is ON.
If it is ON, pointer
D
will be cleared to 0 and it will read
S
starting from bit 0 and read the
ON/OFF state of each bit and write it to M1095 (matrix rotate/shift/output/carry). It will see if
M1093 (matrix pointer increase flag) is ON after reading each bit and increase
D
by 1 if it is ON.
When reading to the last bit, M1089 (matrix search end flag) =ON, pointer
D
records the bit
number of the read bit and ends execution of the instruction.
2. The Pointer should be a 16-bit D-register.
3.
S
designates KnX, KnY, KnM and KnS;
D
designates KnY, KnM and KnS ELC-PC/PA/PH,
ELCM-PH/PA can designate n = 4. ELC-PV can designate n=1- 4.
Program Example:
1. When X0 transitions from OFF
→
ON, the pointer clear flag M1094=ON, the matrix pointer
increases by 1 if flag M1093=1, after the first bit is read.
2. When present value of pointer D20=45, it will read each of the last 3 bits with each false-to-true
transition of the instruction, while M1093 = 1. The following three results will be obtained.
D20=46, matrix rotate/shift/output carry flag M1095=0, matrix search end flag M1089=0.
D20=47, matrix rotate/shift/output carry flag M1095=1, matrix search end flag M1089=0.
D20=47, matrix rotate/shift/output carry flag M1095=1, matrix search end flag M1089=1.
X0
MBRDP D0 D20 K3
b0
D20
45
1 0 1 0 1 0 1 0 1 0 1 1 0 1
1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0
1 1 0 1 0 1 0 1 0 1 0 1 0
b47
0
0 1
0 1
Pointer
D0
D1
D2