M Devices - Mitsubishi Electric GOT2000 Series Connection Manual

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3.3.4

M devices

The M devices are bit devices into which user data are stored.
All of these devices can be used as a user area.
■1. List of M devices and differences in address specification by data format
The following shows the M devices (virtual devices inside the GOT).
The address specification values different depending on the data format are also given below.
Model
b7
b6
M7
M6
M15
M14
M23
M22
M31
M30
M2039
M2038
M2047
M2046
M7
M6
M15
M14
M23
M22
M31
M30
M2039
M2038
M2047
M2046
*1
*2
3 - 10
3.3 Device Data Area
Address
b5
b4
b3
M5
M4
M3
M13
M12
M11
M21
M20
M19
M29
M28
M27
:
M2037
M2036
M2035
M2045
M2044
M2043
M5
M4
M3
M13
M12
M11
M21
M20
M19
M29
M28
M27
:
M2037
M2036
M2035
M2045
M2044
M2043
For the address specification method for each data format, refer to the following.
3.4 Message Formats
• Formats 1, 2
: GOT-A900 Series microcomputer connection
• Formats 3, 4
: GOT-F900 series microcomputer connection
• Formats 5
: Digital Electronics Corporation's memory link method
• Formats 6, 7
: 4E frame
• Formats 8, 9
: QnA compatible 3E frame
For reading or writing data in word units, specify the addresses in 16-point units.(Example: M0, M16, M32, and others)
Format
b2
b1
b0
M2
M1
M0
8320
M10
M9
M8
M18
M17
M16
8321
M26
M25
M24
M2034
M2033
M2032
8447
M2042
M2041
M2040
M2
M1
M0
M10
M9
M8
M18
M17
M16
M26
M25
M24
M2034
M2033
M2032
M2042
M2041
M2040
*1
Address specification value
Format 3, 4
When
When
GS580.b8,
GS580.b8,
GS581.b8,
GS581.b8,
1, 2
GS582.b8,
GS582.b8, or
or
GS583.b8 is
GS583.b8 is
OFF
ON
2000H
2001H
2001H
2000H
2002H
2003H
2003H
2002H
:
:
:
20FEH
20FFH
20FFH
20FEH
Format
Format
5
6 to 9
2080H
Same as
2081H
address
column
*2
:
on left
20FFH
2080H
Same as
2081H
address
column
*2
:
on left
20FFH

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