NAiS FP2, Technical Manual

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2-6
2.2.2
Names and Major Applications of Port
Two communication ports are equipped with FP2 Multi Communication Unit (MCU).
By mounting either communication blocks, RS232C, RS422 or RS485, the communication becomes
available with external devices.
The upper communciation port is called COM. 1 port, and the
lower port is called COM. 2 port.
Select suitable communication block after determine the
following applications.
Communication blocks
Port
RS232C (AFP2803) RS422 (AFP2804) RS485 (AFP2805)
COM. 1
- Computer link (1:1)
- General-purpose serial
communication (1:1)
Note2)
- Computer link (1:1)
- General-purpose serial
communication (1:1)
Note2)
- Computer link (1:N)
- General-purpose serial
communication (1:N)
- PC(PLC) link
(MEWNET-W0)
COM. 2
- Computer link (1:1)
- General-purpose serial
communication (1:1) - Computer link (1:1)
- General-purpose serial
communication (1:1) - Computer link (1:N)
- General-purpose serial
communication (1:N)
Note1) MEWTOCOL-COM can be used on all ports which support computer link. With MEWTOCOL-
COM, the same commands are supported on both two channels, and frames of up to 2048 bytes
(header <) are supported.
Note2) The PC(PLC) link with two units is available.