Switch Commands; Suppressing The Switch Actuation Messages - Andover Controls Infinity Manual

FSCS Protocol

Switch Commands

The FSCS can be configured to transmit a message any time a switch
changes state, or it can be configured to transmit the state of the switches
only when it is polled. The switches can be polled individually or in a
block format.
In order to cut down on the communications overhead, Andover
Controls suggests suppressing the switch actuation messages and
polling the switches in a block format.

Suppressing the Switch Actuation Messages

The following commands determine whether the switch states are to be
polled, or change of state messages are to be generated:
(SPR)
(SAM)
When the switch actuation messages have been suppressed, the FSCS
will latch the state of the switch whenever it changes state and unlatch
the state of the switch when it is polled. This allows a momentary switch
to be read without the switch having to remain actuated for a complete
polling cycle.
When the switch actuation messages have been enabled, a switch
changing state will cause one of the two followings messages to be sent:
(Annn)
(Rnnn)
The switch states may be polled even though the switch actuation
messages have been enabled. When the switch actuation messages have
been enabled, and the switch is polled, the switch states are not latched
and the FSCS will report an instantaneous value for the switch.
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Commands the FSCS to suppress all switch
actuation messages. The switches must be polled.
Commands the FSCS to enable all switch actuation
messages. Therefore, pressing a switch causes an
immediate tramsmisssion of it's state.
Switch nnn is Activated (ON)
Switch nnn is Released (OFF)
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