Siemens PXC Modular Series User Manual

Hardware Features
HOA (Hand-Off-Auto) Upgrade Kits
43 |
100
Siemens Industry, Inc.
Technical Reference Manual
145-172
Building Technologies
Restricted
2018-09-25
Manual Control Settings for Analog Outputs
7 70% 7 15.2
8 80% 8 16.8
9 90% 9 18.4
10 100% 10 20
Digital Output Override
Pressing the switch causes the output to turn ON and the Green I/O status LED is
ON at 100%.
Pressing the switch causes the output to turn OFF and the Green I/O status LED is
OFF at 0%.
The Yellow Override status LED will flash momentarily for any change in value.
Analog Input LED Feedback
Pressing the HOA switch has no effect on the point value or override status.
● Pressing the HOA switch causes the Yellow Override status LED to flash
momentarily to indicate contact has been made.
● The Green I/O status LED on the HOA module contains the intensity that best
represents the value of the analog input point. The intensity of the Green I/O status
LED is determined by the message that the PXC Compact firmware sends to the
HOA about the value of the LAI. For example, if the value is 12.5 mA on a point
that can go from 4 to 20 mA, then the Green I/O status LED will be as bright as
50% of its intensity.
Digital Input LED Feedback
Pressing the HOA switch has no effect on the point value or override status.
● Pressing the HOA switch causes the override status Yellow Override status LED to
flash momentarily to indicate contact has been made.
● The Green I/O status LED on the HOA module is either ON or OFF depending on
the value of the Digital Input point. The intensity of the Green I/O status LED is
determined by the message that the PXC Compact firmware sends to the HOA
about the value of the LDI. For example, if the value is ON, the Green I/O status
LED will be as bright as 100% of its intensity; otherwise, it is 0%.
Pulsed Points LED Feedback
Pressing the HOA switch has no effect on either LED.
The Yellow Override status LED status light on the HOA pulses ON/OFF depending on
the signal of the pulsed input point.
The intensity of the Green I/O status LED is determined by the message that the PXC
Compact firmware sends to the HOA about the value of the pulsed input point. For
example, if the value is ON, the Green I/O status LED will be as bright as 100% of its
intensity; otherwise, it is 0%.
Inverted Inputs
If an AI or DI in inverted, the Green I/O status LED corresponds to the status of the
physical point. The logical point displays the opposite. For example, if the physical
point is ON the Green I/O status LED will also be ON and the logical point will be OFF.

Siemens PXC Modular Series Specifications

General

Brand	Siemens
Model	PXC Modular Series
Category	Control Unit
Language	English