Communication 
 
FPΣ User's Manual 
156 
8.1.4  Program Controlled Communication 
With program controlled communication, the user generates a program which governs the 
data transfer between a PLC and one or more external devices connected to the 
communication port. By this, any standard or user protocol can be programmed. 
Typically, such a user program consists of sending and receiving the data. 
RS-232C
POWER READY
MODE
A
B
C
KEY PAD
CAMERA
MONITOR
COM  COM   D2     D4     D6     D8      D9
  FLASH
 
     D1    D3     D5     D7   
READY
MICRO-IMAGECHECKER
M100
Matsuhita Electronic Works, Ltd.
24VDC
 
START
   ACK   IN1    IN3    IN5
COM  COM   IN2   IN4    COM
Data registers (DT)
Send buffer
Receive buffer
Receiving data
Image checker
Bar code reader
Sending data using F159_MTRN
PLC
 
Program controlled connection between the FPΣ and an external device 
 
 
REFERENCE
 
For detailed information on the program controlled communication mode, see 
"
Program Controlled Communication" on page 187.