Mode Setting Switch - Mitsubishi MELSEC-A AJ71PT3 User Manual

4. PRE-OPERATION SETIING AND PROCEDURE
/MELSEC;4
•
No. Description
Explanation
Indicates the 1/0 status of the corresponding remote I/O station selected by the monitor
station number setting switch.
LED
Definition
MON.
YO
Y1
Y2
Y3
Indicates the transmission data of the remote 1/0 station selected by the monitor
Y4
station number setting switch.
Y5
Hernote 1/0
Y6
~
station
monitoring LEDs Y7
MON.
XO
X1
X2
X3
Indicates the receive data of the remote station selected by the monitor station
X4
number setting switch.
X5
X6
X7
®
Mode setting
Used to switch the link module mode.
switch
Monitor station
Sets the remote 110 station
number to be monitored on the corresponding remote
110
®
number setting station monitoring LED.
switch
Optical link data
@
transfer For optical fiber cables.
connector
Twisted pair link
®
data transfer Used to connect twisted pair cables. Terminal screws are M4.
terminal block
•
4.3.2 Mode setting switch
Any of the following MINI link operation modes is selected by the
mode setting switch.
For further details of test modes, see Section 4.6.
Switch Position Mode Description Remarks
Online automatic return
Disconnects a faulty remote
VO station from the system and
0
ONLINE (A.A.) continues 110 refresh with the other stations if a communication Online mode
error occurs and automatically returns the faulty station to the
system when the fault is removed.
Online no-automatic return Online mode
Disconnects a faulty remote VO station from the system and In online no-automatic return mode, all outputs of
1 ONLINE (U.R.) continues
rio
refresh with the other stations if a communication the faulty remote
VO
station are switched off
error occurs. The system should be restarted up to return the faulty independently of its E.C. MODE switch setting
station to the system. (ON/OFF).
Communication stop at online error detection
Disconnects all remote 110 stations (stops 110 refresh) from the
2 ONLINE (E.S.) system if a communication error occurs at any remote 110 station. Online mode
The system should be restarted up to return all stations to the
system.
3
TEST 1
Line check mode
Test mode
Checks for MINI link hardware fault and cable breakage.
Luminous energy check mode
4 TEST 2
Measures luminous energy at the receive terminal of each remote Test mode
VO station in an optical data link system.
The TEST LED is lit when 5 is selected. The RUN
5 to 9
- -
Not used
and TEST LEOs are switched off when any of 6 to 9
is selected.
Table 4.1 Mode Setting Switch Positions and Functions
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I
18 (NA) 66164·A