NAiS FP2, Technical Manual

Page: 87 / 144

6-23
6.7.2 Connection Example with External Device <1:1 Communication with FP
Series PLC >
Overview
Connect the FP2/FP2SH and another FP series PLC using the RS232C interface and the MEWTOCOL-
COM communication protocol.
•
When the data area read comm and “%01#RDD00000 00001** C
R
” is sent from the FP
Σ
side, the
values of the data register of the PLC connected to the system are sent as a response. For example, if
the value K100 is stored in DT0 and the value K200 is stored in DT1 of the PLC,
“%01$RD6400C8006F
C
R
” is sent as a response to the command. If there is an error, “%01!
○○
** C
R
” is
returned (
○○
is the error code).
•
In addition to data area read an d write commands, MEWTOCOL-COM also provides contact area read
and write as well as many other commands.
System register settings of FP series PLCs (FP1, FP1 side)
In the default settings, the COM port is set not to be used. For 1:1 general-purpose serial communication,
the system registers should be set as shown below.
Communication format settings for FP series PLC (FP0, FP1)
No. Name Set Value
No. 412 COM port 1 selection of communication mode Computer link
No. 413 * Communication format for COM port Character bit: ……
Parity check: …..
Stop bit: …………
Terminator: ……..
Header: ………… 8 bits
Odd
1 bit
CR
STX not exist
No. 414 * Baud rate for COM port 19200 bps
* These settings should be the same as the settings of the connected MCU.
Connection to FP series PLCs (FP0, FP1)
<Using AFP2803> RS232C
•
- Connection with FP0 COM po rt