Chapter 5: Standard RLL Instructions - Network
In the following example, when X1 is on and the module busy relay SP124 (see special relays)
1
is not on, the RX instruction will access an ECOM or DCM operating as a master in slot 2.
Ten consecutive bytes of data (V2000 – V2004) will be read from a CPU at station address 5
and copied into V-memory locations V2300–V2304 in the CPU with the master DCM or
2
ECOM.
3
4
5
6
7
8
9
10
11
12
13
14
A
B
C
D
5–194
DL205 User Manual, 4th Edition, Rev. B
DirectSOFT
X1
SP124
LD
K0205
The constant value K0205 specifies
the ECOM/DCM slot number (2) and
the slave address (5)
LD
K10
The constant value K10
specifies the number of
bytes to be read
LDA
O 2300
Octal address 2300 is
converted to 4C0 HEX and
loaded into the accumulator.
V2300 is the starting
location for the Master CPU
where the specified data will
be read into
RX
V2000
V2000 is the starting location
in the Slave CPU where the
specified data will be read from
Handheld Programmer Keystrokes
$
B
STR
W
SHFT
ANDN
L
D
SHFT
ANDST
L
D
SHFT
ANDST
L
D
SHFT
ANDST
R
X
SHFT
ORN
LD
–or–
KF105
The constant value KF105
specifies the bottom port
and the slave address (5)
(DL250–1 and DL260 only)
Master
CPU
V2277
X
X
X
V2300
3
4
5
8
5
3
V2301
1
9
3
V2302
9
5
7
V2303
1
4
2
V2304
X
X
X
V2305
ENT
1
SP
B
C
E
STRN
1
2
4
K
C
SHFT
3
JMP
2
K
B
SHFT
3
JMP
1
A
C
D
3
0
2
3
C
A
A
SET
2
0
0
Slave
CPU
X
X
X
X
X
V1777
7
3
4
5
7
V2000
4
8
5
3
4
V2001
6
1
9
3
6
V2002
1
9
5
7
1
V2003
3
1
4
2
3
V2004
X
X
X
X
X
V2005
ENT
A
F
ENT
0
5
A
ENT
0
A
A
ENT
0
0
A
ENT
0
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