3 setting the plc – KEYENCE N-400 User Manual
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Chapter 6 PLC Link
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6.2.3 Setting the PLC
Set the PLC or link unit as follows:
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Setting MELSEC-A series
1. Set the RS-232C communication parameters (baud rate, data length, parity and
stop bit length) according to the N-400’s settings.
2. Set the station number according to the N-400’s setting.
3. Set the mode to “Protocol Type 4 ”.
4. Set the main channel to “RS-232C”.
5. Set “Checksum” to “Enable”.
6. Set “Write during running” to “Enable”.
7. Set “Selecting computer link/multi-drop” to “Computer link” (for the AJ71UC24
only).
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Setting SYSMAC-C series
1. Set the RS-232C communication parameters (baud rate, data length, parity and
stop bit length) according to the N-400’s settings.
2. Set the unit number according to the N-400’s setting.
3. Set the command level to “Level 1, 2, 3”.
4. Set “1:1/1:N” to “1:N”.
5. Set “I/O port” to “RS-232C”.
6. Set “Trigger input” to “Internal”.
7. Set “Supply 5 V” to “Disable”.
8. Set “CTS” to “0 V (Normally ON).”
*
The “I/O port”, “Trigger input”, “Supply 5 V” and “CTS” parameters may not be
provided depending on the type of link unit.
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Setting KV series/handheld programmer port
1. The KV series’ handheld programmer port must always be set to the following
values:
• Baud rate : 9600 bps
• Data length: 8 bits
• Parity: Even
• Stop bit length: 1 bit
Set the RS-232C communication parameters of the N-400 according to the
above settings. Set the N-400’s communication mode to “KV”.
2. No other parameters need to be set.