Actuator Input Output Signals
Publication PUB089-005-00_0618 57 of 116
Index 59 Auxiliary Mask (Function)
This parameter relates to the IQ3/IQT3/SI
3
/CK actuators only and allows the auxiliary inputs (Open,
Stop, Close, ESD) to be set to control the actuator or simply report their status. In addition, it allows
the sense of the input (open or closed contact) that is reported as true (1) to be set. Actuator control
always requires a true (1) input signal. The status of the inputs is always reported over the network
and they can be used to report associated plant inputs instead of controlling the actuator.
The register should be considered in its binary format using the low order byte. The number has the
binary form x
7
x
6
x
5
x
4
, y
3
y
2
y
1
y
0
, requiring 8 bits. Each bit in the high order nibble, x
7
x
6
x
5
x
4
, either
enables or disables the associated input for control of the actuator. The bits in the low order nibble,
y
3
y
2
y
1
y
0
, determine if the input reports a closed contact as a '1' or an open contact as a '1'.
To allow an input to act as a control signal its associated bit in the high order nibble must be set to a '1'
in the mask. To allow a closed contact to be reported as a '1' then its associated bit in the low order
nibble must be set to '1' in the mask.
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