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| Mapping of physical I/O points to BACnet objects is shown below. Mapping of uncommitted objects is also listed. The uncommitted objects are used to pass data to and from the user program. The mapping of objects to registers as accessed by the user program is listed in the table below, followed by a summary of the general mapping rules. |
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| Object Allocation - AddMe Lite |
| Function |
Objects |
PL/i Registers |
Data Format |
| Analog Input |
AI 1..12 |
0001..0012 |
REAL (getf) |
| Discrete Input |
AI 13..14 |
0013..0014 |
REAL (getf) |
| Discrete Output |
BO 1..2 |
4001-4002 |
ENUMERATED (seti/geti) |
| Uncommited |
AI 15..40 |
0015..0040 |
REAL (setf/getf) |
| Uncommitted |
MI 1..60 |
13001-13060 |
Unsigned (seti/geti) |
| Object Allocation - AddMe III |
| Function |
Objects |
PL/i Registers |
Data Format |
| Analog Input |
AI 1..18 |
0001..0018 |
REAL (getf) |
| Discrete Input |
AI 19..20 |
0019..0020 |
REAL (getf) |
| Analog Output |
AO 1..4 |
1001-1004 |
REAL (setf/getf) |
| Discrete Output |
BO 1..8 |
4001-4008 |
ENUMERATED (seti/geti) |
| Uncommited |
AI 21..40 |
0021..0040 |
REAL (setf/getf) |
| Uncommitted |
MI 1..60 |
13001-13060 |
Unsigned (seti/geti) |
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| Register numbers for PL/i access: Object type x 1000 + offset |
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| analog-input |
0 |
| analog-output |
1 |
| analog-value |
2 |
| binary-input |
3 |
| binary-output |
4 |
| binary-value |
5 |
| multi-state-input |
13 |
| multi-state-output |
14 |
| multi-state-value |
19 |
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| Registers accessed using getf/setf (float/real) |
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| Analog Input |
0001-0999 |
| Analog Output |
1001-1999 |
| Analog Value |
2001-2999 |
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| Registers accessed using geti/seti (integer/enumerated) |
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| Binary Input |
3001-3999 |
| Binary Output |
4001-4999 |
| Binary Value |
5001-5999 |
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| Multistate Input |
13001-13999 |
| Multistate Output |
14001-14999 |
| Multistate Value |
15001-15999 |
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