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1MRS755014
Profibus-DPV1/SPA Gateway
Installation and Commissioning Manual
If the connected SPA slave is a SPACOM relay with several modules and addresses,
such as SPAD 346 C or SACO 64D4, the standard configuration can have several
addresses defined in it already. In this case, PCT automatically creates a tabbed page
for each address or slave module.
If you do not have a suitable standard configuration or you have a standard
configuration made for one of the modules, you can do as follows:
1. Open the configuration.
2. Add the slaves for each module.
3. Import the configuration again for each slave as if there were several relays
connected.
Select a signal in the Template info field in the PCT and click the Edit button, or
double-click on the signal. A dialog is opened where you can set the SPA slave
address for that signal, see Fig. 4.2.-3 number 1.
Fig. 4.2.-3 Analog Input settings
4. When you have defined the SPA slave address or several addresses, the scaling
factors should be defined for necessary signals. The signals that need to be
defined are pre-dominantly measurement signals that get their input from
measurement transformers and sensors. Scale the necessary signals by selecting
a signal in the template info section of the PCT and click the Edit button, or by
simply double-clicking on the signal. A dialog is opened where you can define
the scaling factor for that signal, see Fig. 4.2.-3 number 2. To calculate the value
on the SPA bus, use the following formula:
SPA_Value
To calculate the value on Profibus, use the following formula:
Profibus_Value
The default value is 1.
Profibus_Value
---------------------------------------------------------------------------------------
=
Decimal_place
(
×
parameter scaling 10
×
(
=
SPA_Value
parameter scaling
SPA-ZC 302
)
Decimal_place
×
)
10
29
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