Table of Contents
Advertisement
4. PRE-OPERATION SETIING AND PROCEDURE
4.3.3 Monitor station number setting switch
IMELSEC;4
I
By setting this switch as required, the 1/0 status of the correspond-
ing batch refresh type remote 1/0 station can be monitored by the
LED on the master module front panel.
The 1/0 status of any partial refresh type remote 1/0 station cannot
be monitored.
(1)
Set the required remote 1/0 station number.
(2)
The following states can be monitored:
(a) Corresponding remote 1/0 station communication status
("MON. ERR" LED)
• On indicates that a communication error has been
detected. Off indicates a normal communication status.
(b) Corresponding remote 1/0 station unit status ("MON. X, Y"
LEDs)
• The "MON. X" LED is lit to indicate that the remote 1/0
station is an input unit.
• The "MON. Y" LED is lit to indicate that the remote 1/0
station is an output unit.
• All "MON. X, Y" LEDs are switched off when the PC CPU
is powered up or reset.
(c) Corresponding remote 1/0 station 1/0 status ("MON.
YO
to
Y7,
MON.
XO
to
xr
LEDs)
• The "MON.
YO
to
Y]"
LEDs indicate the contents of the
transmission data area (buffer memory addresses 10 to
41 ).
• The "MON.
XO
to
Xl"
LEDs indicate the contents of the
receive data area (buffer memory addresses 110 to 141).
(3)
The remote 1/0 station status can only be monitored when the
mode setting switch is set to
0, 1
or
2.
(online mode).
POINT
I
Remote 1/0 station 1/0 status monitoring allows the batch
refresh transmission and receive data in the buffer mem-
ory to be displayed.
When Y18 (MINI link communication start) is off. 1/0
refresh remains stopped and remote 1/0 station 1/0 status
monitoring displays the status at the time of Y18 switch-
off.
4-5
18 (NA} 66164-A
•
•
Advertisement
Table of Contents
Troubleshooting
