NAiS FP Series User Manual page 192

FPΣ
Procedure of communication
In this example, an FP series PLC is connected to the COM. 1 port, and "K100" is being
stored to DT0 of the PLC on the other end, and "K200" to DT1.
Ladder program
Data area read command is
set in transmission buffer
Empty data transmission with F159 (MTRN)
Figure 190: FPΣ Procedure of communication (FP series PLC)
Data register
Data transmission with F159 (MTRN)
R9039: off and R9038: off
Reception buffer writing point reset
Transmission done flag (R9039: on)
Reception done flag (R9038: on)
Data read
R9039: off and R9038: off
Reception buffer writing point reset
9.3 Connection Example with External Devices
RS232C port
Data area reading command
"%01#RDD00000 00001 * *
Data register value of PLC on other end is received
If normal: "%01$RD6400C8006F
If error occurs: "%01!
FP series PLC
C
" transmission
R
C
"
R
C
"
R
BCC
Error code
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