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D Devices - Mitsubishi Electric GOT1000 Series Connection Manual

Microcomputers, modbus products, peripherals.
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2.4.1

D devices

The D devices are word devices into which GOT communication errors, clock data or other information are stored.
The user can also store data using the user area.
List of D devices
The following lists the D devices (virtual devices inside the GOT).
Address
D0 to 2
Communication error status
Stores the communication error details of GOT.
b15
D3
• b4 to 6 turn ON when an SIO error occurs, and turn OFF when an request message from the host is received
successfully after the error occurrence.
• b7 turns ON about 3 seconds after the host side DTR becomes OFF, and turns OFF when transmission is
performed successfully to the host after the error occurrence.
Clock data (year)
b15
D4
Clock data (month)
b15
D5
Clock data (day)
b15
D6
Description
Unused
b8
b7
b6
b5
b4
b8
b7
b8
b7
b8
b7
2. MICROCOMPUTER CONNECTION (SERIAL)
0: Normal
1: Error
b3
b0
Unused
SIO framing error
SIO parity error
SIO overrun error
Communication timeout
error
Unused
b0
Lower 2 digits of calendar
year stored as 2-digit BCD
Unused
b0
Data of months 01 to
12 stored as 2-digit BCD
Unused
b0
Data of days 01 to
31 stored as 2-digit BCD
Unused
2.4 Device Data Area
Set side
System
(Continued to next page)
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