Siemens SENTRON PAC4200

Compatibility

Edge integration requires decode verification

Siemens publishes a PAC4200 system manual with Modbus TCP measurement offsets and a product-specific tender record. The retained material does not explicitly establish the byte and word order for multi-register values, so it is insufficient for a released Edge mapping.

Installed PAC4200 only, with the complete 7KM order code, firmware and installed expansion modules recorded. Siemens product records identify PAC4220 as the successor for relevant order codes. Do not transfer a PAC3220 decoder, optional-module path or register representation to this meter.

Models

Specifications

The retained May 2019 manual documents built-in Ethernet, Modbus TCP, a web server, time synchronisation and an optional RS485 expansion module. It lists multi-register Float measurement offsets, but it does not explicitly state the transport ordering required for a released decoder.¹

Built-in network

10/100 Ethernet with Modbus TCP and HTTP web access^1, 2

Serial option

Optional PAC RS485 expansion module; module and slot-specific gateway settings apply¹

Measurement update

200 ms update for instantaneous values and energy according to the retained manual¹

Measurement scope

TRMS electrical values, power, energy, demand and harmonics^1, 2

Access controls

Password, hardware write protection, IP filtering and configurable Modbus TCP port are described in Siemens material^1, 2

Lifecycle

Legacy PAC4200 installed estate; check the exact order-code replacement record for PAC4220²

Interface

Documented measurements and integration boundaries for SENTRON PAC4200.

• Potential voltage, current, frequency, active, reactive and apparent power values require a verified multi-register decoder before collection.
• Potential import and export energy counters must preserve direction, tariff, unit and reset behavior from the exact firmware map.
• Power quality, harmonics, demand and diagnostic values must remain distinct from billing, settlement and protection evidence.
• No configuration or control write is approved by this guide.

Setup

1. Record the installed identity

   Capture the complete 7KM order code, firmware, serial number, supply variant, measurement wiring and every installed expansion module. Do not identify the meter from the PAC4200 family name alone.

2. Map the existing network

   Record the Ethernet address, Modbus TCP port, unit identifier, web access, time source and any RS485 expansion-module gateway use. Preserve existing metering, commissioning and security ownership.

3. Obtain exact decode evidence

   Confirm the multi-register byte and word order from Siemens documentation or an approved driver for the installed firmware. Do not infer it from PAC3220, another Siemens meter or a generic Modbus convention.

4. Prove a bounded read

   After the decoder is established, compare one complete voltage Float and one power value with the simultaneous local display. Retain the exact offset, function, width, type, unit and ordering.

5. Keep writes outside monitoring

   Use the meter's access controls and a read-only client design. Configuration changes, resets and gateway settings require a separate authorised commissioning procedure.

Common questions

Can Edge read an installed Siemens PAC4200 today?

The meter publishes a Modbus TCP interface and register offsets, but this guide does not release an Edge path because the retained manual does not explicitly establish multi-register byte and word order. Confirm that representation for the exact firmware first.¹

Is a PAC4200 the same as a PAC4220 or PAC3220?

No. PAC4220 is named as a successor for relevant legacy PAC4200 order codes, while PAC3220 is a different family. Each meter needs its own order-code, firmware and interface evidence.²

Does the optional RS485 module prove direct serial compatibility?

No. The installed module, slot, port and client or gateway role must be identified. This page does not publish an RS485 connection path or reuse another module's settings.¹

Can PAC4200 monitoring data be used for settlement or protection?

This guide covers prospective owner-side operational monitoring only. Settlement, legal metrology, grid protection and compliance evidence require their own approved equipment and procedures.^1, 2