Festo CESA-GW-AS-CO, Installation And Operation Manual

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CESA-GW-AS-CO Description
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Offline phase
In the offline phase all input and output data is reset. This phase is entered after
the startup of the master, after a
⇒
AS-i power fail, and during the transition from
the
⇒
configuration mode to the
⇒
protected mode.
Furthermore, the master can actively be transfered into the offline phase by set-
ting the offline flag.
During the offline phase, masters with a LED display show code "40".
Peripheral fault
A peripheral fault is indicated by a red flashing LED on the master and on the
slave.
Depending on the slave type this indicates an overflow, an overload of the sen-
sor's power supply, or another fault regarding the periphery of the slave.
Permanent configuration
The configuration data of all expected slaves stored in the master (
⇒
slave pro-
file). If the
⇒
permanent configuration differs from the
⇒
actual configuration, a
configuration error exists.
Permanent parameter
The parameters saved in the master and sent to the slave after startup of the
master during the
⇒
activation phase.
Configuration mode
During the configuration mode the master exchanges data with all connected
slaves, no matter which of the slaves were configured. Thus, in this mode it is
possible to operate a system without the necessity to configure it before.
See also
⇒
protected mode.
Single Slave
A single slave can in contrast to a
⇒
A/B slave only be addressed from range 1 to
31; the fourth output data bit can be used. All slaves as defined by the older AS-i
Specification 2.0 are single slaves.
There are however also single slaves as defined by Specification 2.1, for example
the new 16 bit slaves.
Slave profile
Configuration data for a slave, consisting of:
⇒
I/O configuration and
⇒
ID-Code , as well as
⇒
extended ID1-Code and
⇒
ex-
tended ID2-Code .
The slave profile is used to distinguish between various slave classes. It is speci-
fied by the AS-i Association and set by the slave manufacturer.