Ebs; Eiu - Siemens TXP-CLC Manual

EBS

The EBS parameter is used to define the status of the binary signal in the event
of a fault.
There are 4 possible choices in the parameter mask: 0,1,2, and 3.
0 for no substitution,
1 for substituting the last valid value,
2 for substituting a logic "0",
3 for substituting a logic "1".
The default setting is 0.

EIU

The EIU parameter is used to activate or de-activate the input signal monitoring
function.
Depending on which sensor type is connected (GT parameter) the following
monitoring functions are available:
•
Short circuit to L+ in the sensor line
•
Short circuit to ground in the sensor line
When the input signals of a Form C (NO & NC) contact are both logic "1" the
monitoring function is triggered. Inversely, if the input signals of a Form C contact
are both logic "0" the monitoring function is also triggered. In both cases the "KG"
output is reset (logic "0") if the channel is not being simulated. A fault TTD is
generated, if configured, for both "channel invalid" and "short circuit to L+". If the
channel is not simulated the substitution value (EBS parameter) is processed
further as the sensor signal.
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