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6. OPERATING THE VARIOUS LADDER MONITOR SCREENS
6 - 1
MELSEC
GOT
Chapter6 Operating the various ladder monitor screens
The following sections describe each screen operation when using the ladder monitor
function.
6.1 Screen operation and screen changes when monitoring
This section includes an explanation of the PLC read operation that reads out the
sequence program from the PLC CPU when executing the ladder monitor, the ladder
read operation that specifies the sequence program to be displayed on the ladder
monitor screen, and the screen movement when executing the ladder monitor.
6.1.1 Reading data from the PLC
The operation of reading the sequence program for the ladder monitor from the PLC
CPU is described below.
The operation procedures vary depending on the PLC CPU to be monitored.
All of the keys used with the operation are touch keys displayed on the screen. Touch
the position where the object key is displayed and enter the data.
(1) When the MELSEC-A/FX ladder monitor is executed
[Operation procedure]
When the screen below is currently displayed, it is not necessary to
touch this.
Exit MenuLadder Break
Print
Screen
Cancel
Print
7
4
1
0
8
5
2
−
9
6
3
!
A
C
E
AC
B
D
F
DEL
NET. No [ 0]
READ ST. ( )
UTILITY MENU
LADDER MON.
(Touch)
To the following page
1) Specify the network No. and station No. for the object PLC
CPU.(*1)
(For data link system, CC-Link system)
NET NO : 0
READ ST. : FF (Own station)
0 (Master station)
1 to 64 (Local stations)
(For network system)
NET NO : 0 (Host loop)
0 (Master station)
READ ST. : FF (Own station)
1 to 64 (Control station)
1 to 64 (Normal station)
When the ladder monitor function starts up, execution begins
from the specified operation with the network No. and Station
of the object PLC CPU noted below.
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