5 MODULE DEDICATED INSTRUCTION
5.3 Serial Communication Instruction
73
5
Setting data
Device
Item
Setting data
Setting range
Setting side
(s2)[0]
Execution type
Specify '0'.
0
User
(s2)[1]
Completion status
The instruction completion status is stored.
0: Normal completion
Other than 0: Error completion (error code)
System
(s2)[2]
Request type
Specify the request.
1: Change of unit (word/byte) and buffer memory assignment
1
User
(s2)[3]
Word/byte unit specification
Specify the unit of the number of send/receive data.
0: Current setting value
1: In units of words
2: In units of bits
0, 1, 2
User
(s2)[4]
Buffer memory start address for
on-demand function
Specify the start address of the buffer memory used by the on-
demand function
0H: Current setting value is used.
400H to 1AFFH, 2600H to 3FFFH: Start address
0H,
400H to 1AFFH,
2600H to 3FFFH
User
(s2)[5]
Buffer memory size for on-
demand function
Specify the size (the number of words) of the buffer memory to
be used by the on-demand function.
0H: Current setting value is used.
1H to 1A00H: Size
0H,
1H to 1A00H
User
(s2)[6]
Send area start address
Specify the start address of the send area used for the
nonprocedural/bidirectional protocol.
0H: Current setting value is used.
400H to 1AFFH, 2600H to 3FFFH: Start address
0H,
400H to 1AFFH,
2600H to 3FFFH
User
(s2)[7]
Send area size
Specify the size (the number of words) of the send area used
by the nonprocedural/bidirectional protocol.
0H: Current setting value is used.
1H to 1A00H: Size
* The start area of the send area (1 word) is used for the
number of send data specification area.
0H,
1H to 1A00H
User
(s2)[8]
Receive area start address
Specify the start address of the receive area used for the
nonprocedural/bidirectional protocol.
0H: Current setting value is used.
400H to 1AFFH, 2600H to 3FFFH: Start address
0H,
400H to 1AFFH,
2600H to 3FFFH
User
(s2)[9]
Receive area size
Specify the size (the number of words) of the receive area
used for the nonprocedural/bidirectional protocol.
0H: Current setting value is used.
1H to 1A00H: Size
* The start area of the receive area (1 word) is used for the
number of receive data storage area.
0H,
1H to 1A00H
User
(s2)[10]
(s2)[111]
For system
System
Содержание MELSEC System Q
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