Names Of Parts And Functions - Mitsubishi QD51-R24 User Manual

5 SETTINGS AND PROCEDURES UP UNTIL OPERATION

5.3 Names of Parts and Functions

5 - 3
Name
1) Indicator LED
CH1-side RS-232
2)
Interface
CH2-side RS-232
3)
Interface
CH3-side RS-422/485
4)
Interface
(1) List of indicator LED's
LED name Indication content
RUN Indicates normal operation.
Indicates whether or not there is an error (
ERR.
PRG Indicates the Mode.
P RUN Indicates that a BASIC program is running.
SD Indicates the send state of each channel.
RD Indicates the receive state of each channel.
( 1) Lights up when a QD51 (-R24) hardware error occurs, or when a program's
execution is abnormal.
1)
2)
3)
Indicator LED (Refer to (1) for the indication contents.)
CH1 side RS-232 interface (D-Sub 9-pin) for serial
communications with external devices and for connection of a
console / debugger.
CH2 side RS-232 interface (D-Sub 9-pin) for serial
communications with external devices and for connection of a
console / debugger.
CH3 side RS-422/485 interface (two-piece terminal block) for
making serial communication with the target device.
(console/debugger cannot be connected.)
MELSEC-Q
1)
2)
4)
Contents
: Lights up/ Blinks
Normal
Occurrence of an
1
).
error
Programming mode
BASIC program is
running.
Data are being sent.
Data are being
received.
: Off
Abnormal, reset
Normal
Run / Multitask
debug mode
Basic program is
stopped.
Not sending.
Not receiving.
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