What Is The Serial Communications Module - Mitsubishi Electric AJ71QC24 Manual

1. GENERAL TION QnA
1 . I What is The Serial Communications Module?
The AJ71 QC24 Serial Communications Module (hereafter abbreviated QC24) uses an RS-232C
and RS-422 (or RS-485) interface to send and receive data between external devices (computer,
printer, monitor, sensor, measuring instrument, etc.) and a PC CPU.
The following shows the QC24 and external devices connections.
The external devices data communications functions are
made up of dedicated protocol formats 1-5, non
procedure protocol, and bidirectional protocol. The user
can choose and set the data communication function for
the RS-232C and RS-422/485 ports.
Computer
/ L $
Printer
Operation supervision and control
Data acquisition and analysis
Program files storage
Sequence program uploading and
downloading
Data printing
Message printing
Dl
Monitor
Operation monitoring
Data acquisition and display
r
.
QC24 Series
Three models of QC24 are available. The user can choose the model
matched to the external devices to be connected.
AJ71QC24
w
RS-232C
Interface
RS-422/485
Interface
171QC24-R2
1
RS-232C
Interface
AJ71QC24-R4
RS-422
interface
~ s - c ~ w a 5
interface