User Manual

Siemens Building Technologies VISONIK DCS Functions and System Messages VVS18 CM2U8567E / 04.1999
Landis & Staefa Division Function MEMO 2-173
2.19 MEMO Message to Terminals
Using the MEMO function,
•
any kind of text, or
•
a specific clear text from the (TXCM,C) text register
may be directed to one or several message channels.
Depending on what is connected to the specific message channel, the text will either be
output as a composite message directly on an output terminal (printer, display terminal,
etc.) or the messages may be transmitted onward to other VISONIK systems (in
VISONIK Link System).
This type of "memo" message is handled internally in the same way as a normal
message, i.e. the text is first deposited in a circular message buffer (CMB) before it is
output to the specified message channel.
2.19.1 Initial Access and Handling
CTRL/P MEMO
ctrl/P
T4 10:58:27 Function =PNT : MEMO
Message Channel=M4:
Message:
Description
:
An entry is now made which defines the message channel(s) to carry the "memo".
One or more message channels may be selected (M1..M15).
Message channels are logical identifiers for data interfaces to the outside world.
MEPS The allocation of physical devices (printer, display terminal, etc.) takes
place through the message channel point parameter MEPS (Point Type
'MC') in the process image.
The following two variations are valid as entries:
• •
any text
The text may not begin with a "#" character and may not exceed one line length
(maximum 60 characters)
or
• •
a clear text register number
Clear text numbers must begin with a "#" character followed by a text number from
the register.
The following examples illustrate how a message is sent from terminal T4 to a printer
T1, connected to message channel M1.
Transmitting freely chosen text
ctrl/P
T4 10:58:27 Function =PNT : MEMO
Message Channel=M4: M1
Message: Please call maintenance department! okay
Output device
Function call-up
Message channel
Message