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SPA-ZC 302
5.4.8.6.
48
Profibus-DPV1/SPA Gateway
Installation and Commissioning Manual
In Use
The In Use flag indicates if the parameter was found in the
connected SPA slave device during the initialization phase. In
the Template info Field the In Use flag is marked with number
1. An unchecked box indicates that the parameter was not found.
For details, see Section 4.7. In Use flags.
Priority check box By selecting the Priority check-box, you can define if the
message should be polled more frequently than other messages.
This is indicated by the letter P (prioritized) after the signal name
in the Template info field. If the signal is not prioritized the letter
N (normal) can be seen in the Template info field. The default is
N. For details, see Section 5.4.8. Template info.
Indirect SPA Messages
Indirect SPA messages are acyclic messages that are not polled cyclically but can be
used at any time. Acyclic messages are primarily intended to be used for
parametrization and other non-continuous operations.
For indirect SPA messages to work properly, a Profibus master with
DP version 1 must be used. This is because indirect SPA messages
use the acyclic properties available only from version 1 onwards.
It is possible to add and remove indirect SPA messages by clicking the buttons in
the indirect SPA message field in the main window, see Fig. 5.3.-1 number 7.
To add a new indirect SPA message, click the Add button. An empty variable row
will be added in the indirect SPA message list. To edit the new indirect SPA
message, select the new message in the list and click the Edit button, or double-click
on the signal. A dialog where you can edit the settings pops up. The PCT assigns the
message number for the indirect SPA message. This message number is used when
configuring the Profibus master. The numbering starts from one and it follows the
row numbers of the indirect SPA messages in the PCT.
You can also remove an indirect SPA message. Select the SPA message that you
want to remove and click the Remove button.
To configure the settings of the indirect SPA messages, do as follows:
1. Select the signal you want to configure and click the Edit button, or double-
click on the signal.
2. A dialog is opened where you can modify the settings of that specific signal, see
Fig. 5.4.8.6.-1. The fields that you cannot configure are dimmed.
3. To save the new settings, click OK. To cancel, click Cancel to discard all the
changes.
1MRS755014
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