NAiS FP Series, User Manual

Page: 195 / 326

FP
Σ
Communication Function 2 General-purpose Serial Communication
9 - 28
Contents of the response:
If K100 is stored in DT0 and K200 is stored in DT1 of the FP series PLC on
the other side, “%01$RD6400C8006F
C
R
” is returned from the FP series PLC
on the other side as the response when the program is executed. The re-
ceived data is stored in the data registers as shown below.
Extracting the data register values from the PLC on the other side
In the program, the data segment of the response from the PLC on the other
side is converted to hexadecimal data using the F72 (AHEX) (hexadecimal
ASCII
→
hexadecimal data conversion) instruction and stored in DT50 and
DT51, only if the character string “$1” stored in DT1 detected as a comparison
instruction.
If an error occurs, “%01!
jj
C
R
” is returned as the response. ( is the
error code and
jj
is the BCC.)
Tip
DT0
H25
(%)
H30
(0)
H31
(1)
H24
($)
H52
(R)
H44
(D)
DT1 DT2 DT3
H36
(6)
H34
(4)
H30
(0)
H30
(0)
DT4
H46
DT7
H30
(0)
H30
(0)
DT6
H43
(C)
H38
(8)
DT5
Upper
byte
Lower
byte
Upper
byte
Lower
byte
Upper
byte
Lower
byte
Upper
byte
Lower
byte
Upper
byte
Lower
byte
Upper
byte
Lower
byte
Upper
byte
Lower
byte
Upper
byte
Lower
byte
Value of DT0 in the PLC on the other side
H36
Value of DT1 in the PLC on
the other side
(6) (F)
BCC
DT3
H36
(6)
H34
(4)
H30
(0)
H30
(0)
DT4
H30
(0)
H30
(0)
DT6
H43
(C)
H38
(8)
DT5
Hexadecimal ASCII
→
HEX conversion instruction (F72)
DT50
H64
(K100)
H00 HC8
(K200)
H00
DT51
Value of DT1 in the PLC on
the other side
Value of DT0 in the PLC
on the other side
Value of DT1 in the
PLC on the other side
Upper
byte
Lower
byte
Upper
byte
Lower
byte
Upper
byte
Lower
byte
Upper
byte
Lower
byte
Upper
byte
Lower
byte
Upper
byte
Lower
byte
Value of DT0 in the PLC
on the other side