Writing Device Memory And Buffer Memory (Write: Server) - Mitsubishi Electric A1SJ71PB96F User Manual

7. COMMUNICATION THAT DO NOT REQUIRE
THE SEQUENCE PROGRAM
7.1.11
A "Write" services is issued from the client to write the data in the PC CPU device memory and special
functions module buffer memories.
The device memories to be written must be registered in the OD in advance as an Array, Simple
Variable, or Record using the software package. In addition, the buffer memory must be registered in
the OD as an Array or Simple Variable.
[Parameters required by the client]
• Access Specification
• Subindex
• Data
[Server (AJ71PB96F/A1SJ71PB96F) answer parameters]
None

Writing device memory and buffer memory (Write: Server)

The device to be written is specified using the index or name.
Access Specification
Index
Variable Name
This specifies which element will be written when an Array or Record write is conducted.
If a Subindex is not specified then all the elements will be written.
The Array or Record header element Subindex is 1.
This sets the data that will actually be written.
The data arrangement for a bit-String is conducted using the following specifications, so be
careful.
When accessing from the M100 using a 16 unit bit-string
MSB
0 M100 M101 M102
M108 M109 M110
1
In addition, in PROFIBUS-FMS the unit used to write Bit-String data is 8 bits. In other words,
bit lengths that do not equal multiples of 8, such as 3 bits or 4 bits, are not read.
Setting value
Index of the variable to be read
Name of the variable to be read
LSB
M103 M104 M105 M106 M107
M111 M112 M113 M114 M115
7-15
MELSEC-A