Help System; Time-Controlled Transfer Of The Status Message; Event-Controlled Transfer Of The Status Message; Default Help Text - Omron NT4S Operation Manual

Standard Mode
4.9.2.4.3

Time-Controlled Transfer of the Status Message

4.9.2.4.4

Event-Controlled Transfer of the Status Message

4.10

Help System

4.10.1 Default Help Text

Word-oriented assignment:
Word address + 0 Bit 15 Bit 14 Bit 13 Bit 12 . . . . Bit 3 Bit 2
Word address + 1 Bit 15 Bit 14 Bit 13 Bit 12 . . . . Bit 3 Bit 2
Word address + 2 Bit 15 Bit 14 Bit 13 Bit 12 . . . . Bit 3 Bit 2
Word address + 3 Bit 15 Bit 14 Bit 13 Bit 12 . . . . Bit 3 Bit 2
:
Word address + n Bit 15 Bit 14 Bit 13 Bit 12 . . . . Bit 3 Bit 2
Message 1 = Word 0, Bit 0
Message 2 = Word 0, Bit 1
Message 3 = Word 0, Bit 2
Message 16 = Word 0, Bit 15
Message 17 = Word 1, Bit 0
Message 18 = Word 1, Bit 1
The same rules apply to other data formats.
The transmission of parallel messages is activated either in a time-controlled mode
by the terminal or an event-controlled mode by the controller. The entire message
buffer is transmitted at once.
Both transmission methods can be implemented at the same time. This permits
longer polling intervals (every 5 to 10 s) to be defined. Critical or important mes-
sages can additionally be transferred on an event-controlled basis. The PLC is
automatically polled for the status messages after the polling time has elapsed.
The selected polling time should not be too short since the status message transfer
can take up a longer amount of time (depending on the number of messages and
the protocol).
No event-controlled transfer will take place if the polling time is set to 0,0 s.
The event-controlled transfer is activated by the controller by writing the event code
7FFF to the serial message channel. This code causes the parallel message sys-
H
tem to be updated to ensure the messages in the operating terminal's parallel
message buffer are current.
To be able to use the event-controlled transmission (also for polling times of 0,0 s),
the parameters file must contain the symbolic variable name and the length of the
status messages.
A screen-sized help text can be assigned to each mask and editable variable. If no
specific text is programmed, a default help text will be displayed instead. This de-
fault help text can be freely specified by the user through the programming system.
If no help text has been defined for a particular mask, the default help text specified
in the programming system is displayed. This text is always present. If no text is
programmed, a blank mask is displayed instead.
:
:
Section 4-10
Bit 1 Bit 0
Bit 1 Bit 0
Bit 1 Bit 0
Bit 1 Bit 0
Bit 1 Bit 0
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