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Application Notes – PLCs and Devices
53
MITSUBISHI FX SERIES PLCS
Registers Accessed
The DN-3000 will only access registers in the Data Register Area of PLC memory (D0 to D9999). When
entering register numbers, only the offset into this area (0-9999) should be entered. For example, to
access register number D1, the value 1 should be entered. To access register number D9999, the value
9999 should be entered.
RTS Control
The Mitsubishi FX-32 and equivalent PLCs require RTS to be active when sending to the PLC and
inactive when receiving from the PLC. The DN-3000 can be configured to do so by performing the
following steps when configuring the PLC Port in the DN-3000 Configuration Software:
1) Select “RTS Delay” in the RTS Control selection box
2) Set the RTS Delay time to 2 ms
MODICON PLCS AND MODBUS DEVICES
Registers Accessed
The DN-3000 will only access registers in the Holding Area of PLC memory (40001 to 49999). When
entering register numbers, only the offset into this area (1-9999) should be entered. For example, to
access register number 40001, the value 1 should be entered. To access register number 49999, the value
9999 should be entered.
O
MRON PLCS
Registers Accessed
The DN-3000 will only access registers in the Data Area of PLC memory (DM0 to DM9999). When
entering register numbers, only the offset into this area (0-9999) should be entered. For example, to
access register number DM1, the value 1 should be entered. To access register number DM9999, the
value 9999 should be entered.
PLCs / Protocols Supported
The DN-3000 will communicate with any Omron PLC that uses the Host Link Protocol. On many PLCs,
this requires the use of a Host Link Module.