6. COMMUNICATIONS THAT REQUIRE THE SEQUENCE PROGRAM
MELSEC-A
6-9
(2-2) During normal end (when the access mode is name)
64
65
66
67
68
69
85
86
87
88
89
90
91
127
*
*
0
1
*
*
Access mode
Variable name length
The variable name length
set from the 69 address
Read variable name
Subindex *1
Variable type *
Number of elements *
Data type *4
Data length (byte value) *
Data length (word value) *6
Buffer memory address *7
Several elements are repeated.
First element
Explanation
*1 Subindex
This is set to the same value as the values set in the request area.
*2 Variable type (the following values are set.)
Simple variable --------------------------------------------------------- > 0007h
Array----------------------------------------------------------------------- > 0008h
Record -------------------------------------------------------------------- > 0009h
*3 The following values are set.
*4 Data type (the following values are set)
Truth value (Boolean) ------------------------------------------------- > 0001h
Integer with sign (Integer8) ------------------------------------------ > 0002h
Integer with sign (Integer16)----------------------------------------- > 0003h
Integer with sign (Integer32)----------------------------------------- > 0004h
Integer (Unsigned8) --------------------------------------------------- > 0005h
Integer (Unsigned16)-------------------------------------------------- > 0006h
Integer (Unsigned32)-------------------------------------------------- > 0007h
Floating point (FloatingPoint)---------------------------------------- > 0008h
Character string (VisibleString) ------------------------------------- > 0009h
Octet string (OctetString)--------------------------------------------- > 000Ah
Bit string (BitString) ---------------------------------------------------- > 000Eh
*5 Data length (byte) (the following values are set)
Array, record-------> This shows the byte length for the data length of the data in one element.
Simple variable ---> This shows the byte value for the data data length.
*6 Data length (word) (the following values are set)
Array, record-------> This shows the word value for the data length of the data in one element.
Simple variable ---> This shows the word value for the data data length.
*7 Buffer
memory
address
The address of the buffer memory for reading this element is set.
