Checking The Module's State (Hardware Test) - Mitsubishi MELSEC AJ65BT-R2 User Manual

4 PROCEDURES AND SETTINGS BEFORE OPERATION

4.6 Checking the module's state (Hardware test)

Confirm that the R2 operates normally as a single module. Always carry out this test
before structuring the system.
Execute the test with the following procedure.
Disconnect the CC-Link dedicated cable for
the data link from R2.
Mount an RS-232-C single module loopback connector.
Set the data link related hardware.
·
Set the data link transmission speed setting switch.
Set the mode setting switch to "D".
(hardware test mode)
Turn ON the R2 power.
Confirm the RS-232-C ERR. LED
*1 The specifications of the RS-232-C single module loopback connector are shown
below.
Create the RS-232-C single module loopback connector shown below.
R2 side (DTE)
Signal abbrev.
CD
RD (RXD)
SD (TXD)
DTR (ER)
SG
DSR (DR)
RS (RTS)
CS (CTS)
–
IMPORTANT
During the hardware test mode, the check data is transmitted to the data link when
checking the data link loopback, so always disconnect the data link wiring.
Start
*
2
*
Single module loopback
Pin No. connector
1
2
3
4
5
6
7
8
9
4 - 11
MELSEC-A
1