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PART 1: CX-Programmer
CHAPTER 4 – Reference
OMRON
CX-Programmer _Page 74
Program Monitoring
Program monitoring allows the power flow of a PLC program to be displayed whilst the PLC program is
running. Power flow is displayed by a thick line across items in the Ladder program that currently have power
flowing through them.
Note:
The data from several PLCs can be monitored at the same time. Ensure the program has been
downloaded and the PLC mode set to Monitor.
Use the following procedure to monitor a program.
1, 2, 3…
1. Select the Program object in the project workspace to display the Ladder program in the
Diagram Workspace.
2. Select
the
Work On-line
button from the toolbar. A confirmation message is displayed;
select the
Yes
pushbutton to connect to the PLC.
3. Select
the
Monitor Mode
button or
Run Mode
button from the toolbar. Monitoring can
only be accomplished in these PLC operating modes.
4. Select
the
Toggle PLC Monitoring
button from the toolbar to start monitoring power
flow in the Ladder program.
5. Select
the
Toggle PLC Monitoring
button from the toolbar to stop monitoring.
Note:
The PLC Monitoring function can be activated whilst in Mnemonics view.
The display format for the present values of operands of special instructions when monitoring
on the
Ladder Section
Window can be selected from the following data types. The same
display format must be used globally. To select the display format, click the desired button or
select
Monitoring Data Type
from the
View
menu. data.
•
Decimal
•
Signed Decimal
•
Monitor in Hex
The default display formats will be as follows if none of the above display formats is selected.
•
Named symbol will be monitored in the symbol data type.
•
Unnamed symbol will be monitored in the operand data type.
•
Two-word operations, such as for the MOVL instruction, will be monitored in 2-word
hexadecimal.
•
For present values displayed in formats other than hexadecimal, “D” is attached for 2-word
data and “L” is attached for 4-word.
Pause Monitoring
Pause Monitoring is an online function that allows the normal monitoring display to be frozen at a point in time,
so that the logic of a program can be examined. The pause can be triggered either manually or by a trigger
condition.
Note:
Due to the speed at which a PLC operates and the slow speed of some network
communications, a trigger condition on a PLC may not always be found, especially if the
trigger condition is a transient and only occurs for brief moment in time.
Use the following procedure to Pause monitor a program.
1, 2, 3…
1. To enable pause monitoring, first select 'PLC Monitoring', so that monitoring is working
normally.
2. Select a range of rungs that are of interest to monitor. This is necessary to allow the
monitoring to be as fast as possible (the less values to monitor, the faster the data can be
obtained through communication with the PLC).
3. Select the 'Pause Upon Trigger' command. This will present a dialogue allowing the
choice of trigger. Select either
Manually
or
Triggered
.
Содержание Sysmac WS02-CXPC1-EV3
Страница 1: ...Cat No W414 E1 01 SYSMAC...
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Страница 3: ...SYSMAC WS02 CXPC1 EV3 CX Programmer Ver 3 1 Operation Manual Revised November 2002...
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Страница 390: ...Cat No W414 E1 01 Note Specifications subject to change without notice Printed in Japan Authorized Distributor...