Operating Instructions

Chapter 2—Hardware Features
HOA (Hand-Off-Auto) Upgrade Kits
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38
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Siemens Industry, Inc.
Owner's Manual
588-682
Building Technologies
2019-01-25
Default Mapping
For each type of TC Compact (16, 24 and 36) that supports HOA and each HOA unit
(8, 16 rooftop or 16 non-rooftop UL 864), there is a default mapping between each
button and physical point.
The default mapping provides Plug-and-Play functionality. Upon connection of the
HOA Upgrade Kit to the host field panel, the HOA device is recognized and its
switches are automatically assigned to the controllers fixed digital output and fixed
analog output points. The default mapping is also used to allow the HOA board to
command physical outputs before any logical points have been defined. If a logical
point is defined using a physical address that is mapped to an HOA switch by default
the logical point value will correspond to the current Hand and I/O status of the HOA
switch.
The HOA mapping and definition of a logical point in the database can be done in any
order.
Default Mapping for HOA (8 button)
TC Compact
Switch Number
Point Number
TC -16 1-3 DOs 14,15,16
4-6 AOs 9,10,11
7 and 8 Unused
1)
TC -24 1-5 DOs 20-24
6, 7, 8 AOs 17,18,19
TC -36 1-8 DOs 29-36
1)
Available for custom mapping.
Default Mapping for HOA (16 button)
TC Compact
Switch Number
Point Number
TC -16 1-3 DOs 14,15,16
4-6 AOs 9,10,11
7-16 Unused
1)
TC -24 1-5 DOs 20-24
6, 7, 8 AOs 17,18,19
9-16 Unused
1)
TC -36 1-8 DOs 29-36
9-16 Unused
1)
1)
Available for custom mapping.