VAMP 259 - SPA-Bus

6.2 Communication protocols
6 Communication
Technical description
228
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VM259.EN007
6.2.4. SPA-bus
The device has full support for the SPA-bus protocol including
reading and writing the setting values. Also reading of multiple
consecutive status data bits, measurement values or setting
values with one message is supported.
Several simultaneous instances of this protocol, using different
physical ports, are possible, but the events can be read by one
single instance only.
There is a separate document ―Spabus parameters.pdf‖ of SPA-
bus data items available.
Parameters
Parameter
Value
Unit
Description
Note
Addr
1  899
SPA-bus address. Must be
unique in the system.
Set
bit/s
1200
2400
4800
9600 (default)
19200
bps
Communication speed
Set
Emode
Channel
(Limit60)
(NoLimit)
Event numbering style.
Use this for new
installations.
(The other modes are for
compatibility with old
systems.)
(Set)
Set = An editable parameter (password needed)