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Manual OP5, OP15
( ) J31069-D0840-U001-A2-7618
Controlling the OP from the PLC
The OP and the application program communicate with each other by alter-
nately reading from and writing to the data areas in the memory of the PLC.
Thus the PLC and the OP can make each other execute different actions by
evaluating data areas.
PLC jobs are functions that are initiated on the OP – for example, selecting
screens, printing screens, transferring the date and time from the OP to the
PLC. Jobs are stored with a job number and parameters on the PLC.
The PLC, for example, can call a screen on the OP to draw the operator’s
attention to a particular condition or to the fact that inputs are required.
You will find a complete list of all the PLC jobs with their parameters and a
description of all the data user areas that have to be configured on the PLC in
the Communication User’s Manual.
The LEDs on the keys of the OP can be driven from within the PLC. This
means it is possible to signal to the operator by means of a lit key LED that it
is advisable to press a specific key in a certain situation.
For LED control, it is necessary to create an LED image on the PLC. In the
configuration, two bits are assigned to every LED in the LED image area.
These two bits can be used to im plement four different LED states: Off, Per-
manently On, Low- Speed Flashing, High-Speed Flashing.
The OP stores information about the object type called in the screen number
area of the PLC. Thus it is possible for information about the current display
contents of the OP to be transferred to the application program on the PLC
and, from there, for certain reactions to be initiated – for example, calling
another screen.
With pressing a function key, it can be used to set a bit on the PLC, where it
is evaluated by the application program.
For this, you must have created the necessary data area on the PLC for the
keyboard image and have specified the appropriate area pointer in the config-
uration for assigning the key to a bit.
Common data
areas
PLC jobs
LED control
Evaluating the
screen number
Function keyboard
image
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Summary of Contents for OP15
Page 6: ...iv Manual OP5 OP15 J31069 D0840 U001 A2 7618 Preface ...
Page 11: ...Product Description 1 Functionality 2 Part I Introduction ...
Page 12: ... 2 Manual OP5 OP15 J31069 D0840 U001 A2 7618 ...
Page 24: ...2 4 Manual OP5 OP15 J31069 D0840 U001 A2 7618 Functionality ...
Page 26: ... 2 Manual OP5 OP15 J31069 D0840 U001 A2 7618 ...
Page 42: ...4 10 Manual OP5 OP15 J31069 D0840 U001 A2 7618 General Operation ...
Page 66: ...7 16 Manual OP5 OP15 J31069 D0840 U001 A2 7618 Message Handling ...
Page 78: ...8 12 Manual OP5 OP15 J31069 D0840 U001 A2 7618 Recipes ...
Page 88: ... 2 Manual OP5 OP15 J31069 D0840 U001 A2 7618 ...
Page 98: ... 2 Manual OP5 OP15 J31069 D0840 U001 A2 7618 ...
Page 122: ...17 8 Manual OP5 OP15 J31069 D0840 U001 A2 7618 Device Description ...
Page 128: ...19 4 Manual OP5 OP15 J31069 D0840 U001 A2 7618 Test and Monitoring Functions ...
Page 132: ... 2 Manual OP5 OP15 J31069 D0840 U001 A2 7618 ...
Page 146: ...B 12 Manual OP5 OP15 J31069 D0840 U001 A2 7618 System Messages ...
Page 150: ...C 4 Manual OP5 OP15 J31069 D0840 U001 A2 7618 Technical Data ...
Page 156: ...E 4 Manual OP5 OP15 J31069 D0840 U001 A2 7618 ESD Guidelines ...
Page 165: ...F 9 Manual OP5 OP15 J31069 D0840 U001 A2 7618 Siemens Worldwide ...
Page 177: ...Index 8 Manual OP5 OP15 J31069 D0840 U001 A2 7618 Index ...