Siemens · Modbus7KM2112-0BA00-3AA0 (firmware 2.4.2)

Read-only starter map for SENTRON PAC3200 ordering code 7KM2112-0BA00-3AA0 at firmware 2.4.2. It covers instantaneous voltage, current, power, power factor, frequency and voltage/current THD from Siemens' measured-variable table, and excludes the four-register Double energy counters that Edge does not currently decode.

Register map

Zero-based Modbus PDU addresses. Everything the points share is stated once below; the table carries what differs between them.

Function: FC3 read holding registers
Endianness: big endian
Format: float32
Multiplier: ×1
Offset: 0
Word order: normal
Byte order: normal
Reporting: every 60 s
Access: read only, export off

Points 32

Swipe to see every column

Download

Point	PDU address	Unit
Voltage L1-N	1	V
Voltage L2-N	3	V
Voltage L3-N	5	V
Voltage L1-L2	7	V
Voltage L2-L3	9	V
Voltage L3-L1	11	V
Current L1	13	A
Current L2	15	A
Current L3	17	A
Apparent Power L1	19	VA
Apparent Power L2	21	VA
Apparent Power L3	23	VA
Active Power L1	25	W
Active Power L2	27	W
Active Power L3	29	W
Reactive Power L1	31	var
Reactive Power L2	33	var
Reactive Power L3	35	var
Power Factor L1	37	-
Power Factor L2	39	-
Power Factor L3	41	-
Voltage THD L1	43	%
Voltage THD L2	45	%
Voltage THD L3	47	%
Current THD L1	49	%
Current THD L2	51	%
Current THD L3	53	%
Frequency	55	Hz
Total Apparent Power	63	VA
Total Active Power	65	W
Total Reactive Power	67	var
Total Power Factor	69	-

Prove the decode before rollout

This template is scoped to the PAC3200 ordering code 7KM2112-0BA00-3AA0 and firmware 2.4.2 used by Siemens' Set 22 application example. Confirm the installed ordering code and firmware before applying it to another PAC3200 variant.

Siemens publishes zero-based offsets in table 3-6. The Set 22 example reads total active power at reference 40001 + offset 65 = 40066; Edge sends the PDU offset directly, so Total Active Power remains start_address 65.

Every selected value is a two-register IEEE-754 Float available through FC03 and FC04. Siemens' Set 22 example uses FC03 and reads the pair directly into an S7 Real, so Edge uses big-endian bytes with word_swap false and byte_swap false. Verify a stable voltage or frequency against the display before rollout.

The starter map is read-only. It omits writable parameters and counters, status bit-fields, connection identity, and the four-register Double energy values at offsets 801 to 837 because Edge does not currently expose a 64-bit floating-point Modbus format.

Applying the file replaces the selected device's current Modbus sensor list. It does not change the Gateway connection, server address, Modbus unit ID, device enable state or export identifiers.

What the download changes

When applied in Edge, the file replaces the selected device's current Modbus sensor list with these 32 read-only points. It does not change the Gateway connection, server address, Modbus unit ID, device enable state or export identifiers. Back up or duplicate a customised definition before applying it.

Import, apply, then prove one known value

1
Download the reviewed JSON
Sign in with an account that has approved Edge download access.
2
Import in Edge
Open Settings → Device Templates, choose Import, and select the downloaded file.
3
Apply to the exact model
Use a new or backed-up device definition, then choose its existing Gateway connection and unit address. Applying the template replaces that definition's current sensor list.
4
Commission before rollout
Check identity, value, unit and timestamp against one known condition before enabling exports or repeating the setup.

Sources

SENTRON PAC3200 Manual (opens in a new tab) (PDF) Siemens · 02/2008 · A5E01168664B-04
Data Exchange between S7-1200 and SENTRON PAC via MODBUS TCP (Set 22) (opens in a new tab) (PDF) Siemens · V14.0 · 06/2017 · firmware 2.4.2

This template applies only to Siemens 7KM2112-0BA00-3AA0 (firmware 2.4.2). Product names and trademarks belong to their respective owners; publication does not imply endorsement or a commercial relationship.