Overview; Software Configuration - Mitsubishi A1SJ71PB92D User Manual

1. OVERVIEW

1. OVERVIEW
This is the user's manual for the AJ71PB92D/A1SJ71PB92D PROFIBUS-DP interface module
(hereafter abbreviated as " AJ71PB92D/A1SJ71PB92D. When explain separately, however,
abbreviated as AJ71PB92D, A1SJ71PB92D), which is used to connect a MELSEC-A/QnA/Q series
programmable controller to a PROFIBUS-DP network.
The AJ71PB92D/A1SJ71PB92D operates as a master station (class 1) in the PROFIBUS-DP network.
1.1

Software Configuration

Portion where master
PCB is installed
Portion where slave
PCB is installed
The AJ71PB92D/A1SJ71PB92D has a physical layer, data link layer, DDLM, and user interface that
conform to PROFIBUS-DP, and communicates data with the PLC CPU by using a buffer memory.
The main application of PROFIBUS-DP is networks that execute high-speed communication at the
level of sensors and actuators, and the AJ71PB92D/A1SJ71PB92D has been designed with this in
mind: its functions are mainly related to data I/O with slave stations.
MELSEC A Series PC
FROM/TO
Communication using a buffer memory
User Interface
Direct Data Link Mapper
(DDLM)
empty
FDL
PHY
1-1
Layer 3 to 7
Layer 2 Datalink layer
FMA1/2
Layer 1 Physical layer
MELSEC-A