SATEC PM130 PLUS

Power meter

The PM130 PLUS is SATEC's three-phase panel power meter for a 92 × 92 mm or 4 inch round cut-out, with a three-row LED display and a load bar graph. The PM130P measures voltage, current, power and frequency, the PM130E adds energy counters, tariffs and logging, and the PM130EH adds harmonic analysis; a DCC order option meters DC circuits through shunts. Every model has an RS-485 port, COM1, running Modbus RTU, and the ETH module adds a Modbus TCP server on port 502. SATEC numbers its registers in decimal and sends 32-bit values low word first, in units that depend on a resolution setting in the meter.

SATEC PM130 PLUS
  • Modbus RTU
  • Modbus TCP

Power meter

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Compatibility

Compatible with EpiSensor Edge over Modbus RTU or Modbus TCP

The PM130 PLUS is compatible with EpiSensor Edge over Modbus RTU on its built-in COM1 RS-485 port, read through a ZMB-31 Modbus Interface or a Gateway serial port, and over Modbus TCP on port 502 when the ETH module is fitted. SATEC publishes the register map with decimal addresses, data types, low-word-first word order, units and worked conversions.

PM130P, PM130E and PM130EH PLUS, using the PM130 PLUS Modbus reference guide BG0427 Rev. A10 with installation manual BG0425 Rev. A22. Energy registers need a PM130E or PM130EH, harmonics a PM130EH. Site check: read the device resolution at register 2390 and compare the first read with the display. PROFIBUS, DNP3, IEC 60870-5 and SATEC ASCII are outside this guide. Read-only monitoring: no writes to setup, password, relay or reset registers.

Connect it with

Route into Edge

For a meter in a switchboard where a wireless link avoids running a data cable back to the Gateway

  • Modbus
  • Wireless
  • Edge
  • Platforms
Power meter
Interface
Gateway
Edge
Output
PM130 PLUSPM130 PLUS COM1 RS-485 terminal
ZMB-31Modbus RTU to the EpiSensor wireless network
ZGW-20 GatewayHosts Edge locally
EpiSensor EdgeModbus client + register map
Customer platformMQTT · API · files
Modbus RTU · RS-485
EpiSensor wireless
Runs locally
Optional onward data
Wire the two-wire RS-485 pair from the removable three-pin COM1 connector to the ZMB-31, match the meter's Modbus address, baud rate and data format, and read the measurement registers with FC03. If a SCADA master already polls COM1, agree the change with its owner first. The customer-platform output is optional; Edge remains the local system of record.

When the Gateway sits near the meter, or several meters share one wired RS-485 bus

  • Modbus
  • Edge
  • Platforms
Power meter
Interface
Gateway
Edge
Output
PM130 PLUSPM130 PLUS COM1 RS-485 terminal
Isolated serial interfaceApproved RS-485-to-host adapter
ZGW-20 GatewayHosts Edge locally
EpiSensor EdgeEdge Modbus client
Customer platformMQTT · API · files
Modbus RTU · RS-485
Isolated serial
Runs locally
Optional onward data
Give each meter its own Modbus address, use the same baud rate and data format on every meter and in the Edge serial client, and terminate both ends of the bus. Read with FC03 at the decimal addresses from the reference guide. The customer-platform output is optional; Edge remains the local system of record.

When the meter has the ETH expansion module, or a 12DIOR module with its Ethernet port

  • Modbus
  • Edge
  • Platforms
Power meter
Interface
Gateway
Edge
Output
PM130 PLUSPM130 PLUS ETH module RJ45
Protected EthernetSegmented LAN
ZGW-20 GatewayHosts Edge locally
EpiSensor EdgeEdge Modbus TCP client
Customer platformMQTT · API · files
Modbus TCP
Protected Ethernet
Runs locally
Optional onward data
The meter runs a Modbus TCP server on port 502 at its configured IP address, factory set to 192.168.0.203. It accepts two simultaneous Modbus TCP connections, so Edge takes one; leave the other for PAS or the site SCADA. The customer-platform output is optional; Edge remains the local system of record.

Models

Download
ModelsInterfaceRoute into Edge
PM130P PLUS (order code PM130P-PLUS)Voltage, current, power, power factor and frequency; COM1 RS-485 with Modbus RTU; optional COM2 moduleRead the 1-second phase and total values. The guide marks energy and power demand registers as PM130E and PM130EH only.
PM130E PLUS (order code PM130E-PLUS)Adds class 0.5S import and export energy, time-of-use registers and data logs; offered in certain regions only; the same ports and mapSame read path, plus the 32-bit energy counters from register 14720 in whole kWh.
PM130EH PLUS (order code PM130EH-PLUS)Adds harmonic analysis to the 40th order, THD, TDD and K-factorSame read path; harmonic registers are marked EH in the guide.
Current input options 5, 1, RS5, HACS, DCC5 A or 1 A CT secondaries, the RS5 input for 5 A split-core HACS, SATEC HACS sensors, or DCC for DC current from a shunt of up to 100 mVThe map is the same. A DCC meter runs in DC mode (register 2395, 0 AC, 1 DC); SATEC states that harmonic, frequency, power factor, reactive and angle registers do not apply to it.
COM2 modules ETH, RS232, PRO, 12DIOR-ETH, 12DIOR-485ETH: 10/100BaseT with Modbus TCP on port 502. RS232: RS-232 or RS-422/485 with Modbus RTU. PRO: PROFIBUS DP. 12DIOR with an Ethernet or RS-485 port.ETH or 12DIOR-ETH give the Modbus TCP route and RS232 or 12DIOR-485 a second Modbus RTU port. PROFIBUS is not a Modbus path; use COM1 instead.

Specifications

The PM130 PLUS is a multifunction three-phase power meter for panel mounting, with a bright three-row LED display, a load bar graph and an embedded controller with 16 setpoints. It measures true RMS voltage, current, power, power factor, neutral current, unbalance and frequency at 25, 50, 60 or 400 Hz, or three DC circuits through shunts with the DCC option. One expansion module can be fitted at the back: digital inputs and relays, analog outputs, or a second communication port.23

Models
PM130P power version; PM130E energy version, offered in certain regions only; PM130EH energy and harmonic version. All three have the same communication and control features.3
Order string
Model (PM130P-PLUS, PM130E-PLUS, PM130EH-PLUS), current input (5, 1, RS5, HACS, DCC), calibration frequency (25HZ, 50HZ, 60HZ, 400HZ), display resolution (blank low 1 A and 1 V, H high 0.01 A and 0.1 V), power supply (ACDC, 1DC, 23DC), protocol (blank Modbus and DNP3, 870 adds IEC 60870-5-101/104) and mounting (blank panel, DIN).3
Inputs
Voltage up to 690 V AC line-to-line or 400 V line-to-neutral, direct or through PTs (up to 828 V and 480 V). Current through 5 A CTs (10 A continuous) or 1 A CTs (2 A continuous), SATEC HACS sensors, the RS5 split-core input, or DC shunts on the DCC option.23
Accuracy
Active energy class 0.5S to IEC 62053-22 and ANSI C12.20 class 10 0.5%; voltage and current 0.2% of reading. The datasheet adds active energy class 0.5/0.2 to IEC 61557-12.23
COM1
Built-in optically isolated RS-485 (3000 V AC), removable three-pin connector, up to 115.2 kbit/s, Modbus RTU, DNP3 or SATEC ASCII. Factory settings: Modbus RTU, address 1, 9600 bit/s, 8 data bits, no parity, 5 ms response delay.2
Ethernet (ETH module)
Transformer-isolated 10/100BaseT on RJ45. Modbus TCP on port 502 and DNP3/TCP on port 20000, four connections in total (two Modbus TCP, two DNP3). Factory IP 192.168.0.203, mask 255.255.255.0, gateway 192.168.0.1.2
Response time
13 ms typical at 9600 bit/s, 11 ms at 19200 bit/s and 9 ms at 57600 or 115200 bit/s.1
Power supply
ACDC option 85 to 265 V AC 50/60/400 Hz or 88 to 290 V DC, 9 VA; 9.5 to 18 V DC or 18.5 to 58 V DC options, 4 VA.2
Mounting
92 × 92 mm square or 4 inch round panel cut-out, or DIN rail with the DIN option; 114 × 114 × 109 mm; 0.70 kg.23
Environment
Operating -30 to +60 °C; storage -40 to +85 °C; 0 to 95% humidity, non-condensing; pollution degree 2. Front panel IP54.23

Interface

Documented measurements and integration boundaries for PM130 PLUS.

  • Addresses are decimal and go on the wire as printed: register 14336 is sent as 38 00. A client that wants Modicon numbers adds 40001, or 400001 above 9999, so 14336 becomes 414337. FC03 and FC04 return the same registers.
  • 32-bit values are two registers, low-order word first, with the low word at an even address. They are long integers by default; register 246 can switch analog values, counters and energies to IEEE floats, which are also sent low register first. Read 246 before adding points.
  • Units depend on the device resolution at register 2390 (0 low, the default; 1 high, order code H). Low resolution: volts in 1 V, amps in 1 A, power in 1 kW, kvar or kVA. High resolution: 0.1 V and 1 W, var or VA with a PT ratio of 1 (1 V and 1 kW above it), and 0.01 A.
  • 1-second phase voltages V1, V2 and V3 at 13952, 13954 and 13956: UINT32 in volts. They are line-to-neutral in 4LN3, 3LN3 and 3BLN3 wiring and line-to-line otherwise. V12, V23 and V31 at 14012, 14014 and 14016.
  • Currents I1, I2 and I3 at 13958, 13960 and 13962: UINT32 in amps. Neutral current at 14466, frequency at 14468 (UINT32, 0.01 Hz) and frequency to three decimals at 14474 (0.001 Hz).
  • Per-phase kW at 13964, 13966 and 13968 and kvar at 13970, 13972 and 13974: INT32. kVA at 13976 to 13980: UINT32. Power factor L1 to L3 at 13982, 13984 and 13986: INT32, × 0.001. In 3-wire wiring the per-phase power and power factor read zero.
  • Totals: kW at 14336 and kvar at 14338 (INT32, negative on export), kVA at 14340 (UINT32), power factor at 14342 (INT32, × 0.001), kW import at 14348 and kW export at 14350 (UINT32), average current at 14360.
  • Energy, PM130E and PM130EH only: kWh import at 14720, kWh export at 14722, kvarh import at 14728, kvarh export at 14730 and kVAh total at 14736. UINT32 in whole kWh, kvarh and kVAh, 0 to 999,999,999. kVAh import and export at 14742 and 14744 from firmware 11.3.3.
  • Per-phase kWh import L1 to L3 at 14848, 14850 and 14852, when phase energy calculation is enabled at register 2378.
  • Harmonics, PM130EH only: voltage THD V1 to V3 at 13988, 13990 and 13992 and current THD I1 to I3 at 13994, 13996 and 13998, UINT32 in 0.1 %, 3-second values.
  • Registers 256 to 308 are a 16-bit basic set scaled 0 to 9999 between low and high engineering scales, with energies split modulo 10000. Prefer the 32-bit registers, which need no scale arithmetic.
  • Identity: serial number at 46080 (UINT32), model ID at 46082 (13010 PM130P, 13011 PM130A, 13020 PM130E, 13030 to 13032 PM130EH), model name at 46084 to 46091 and firmware version at 46100.
  • Setup, password (2575, or 44378 for an 8-digit password), restart (2560), relay control (3244 to 3247), reset and clear registers (3404 onward) and the assignable map (0 to 239) accept writes. Keep them out of a monitoring poll.

Assessment

PM130P, PM130E and PM130EH PLUS, using the PM130 PLUS Modbus reference guide BG0427 Rev. A10 with installation manual BG0425 Rev. A22. Energy registers need a PM130E or PM130EH, harmonics a PM130EH. Site check: read the device resolution at register 2390 and compare the first read with the display. PROFIBUS, DNP3, IEC 60870-5 and SATEC ASCII are outside this guide. Read-only monitoring: no writes to setup, password, relay or reset registers.

InteroperabilityWell supported
SATEC documents Modbus RTU on COM1 and Modbus TCP on port 502, the supported function codes and exception responses, decimal addresses with the Modicon offsets, data types, low-word-first word order with worked signed and unsigned examples, and unit tables for each resolution.12
AccuracySupported with conditions
Class 0.5S energy with 0.2% voltage and current, per-phase and total power, import and export energy and 1-second values. Energy needs a PM130E or PM130EH, and the units of every analog register depend on the resolution setting and PT ratio, so each point needs its scale confirmed once.123
SecuritySupported with conditions
A password option blocks setup changes and counter clears through the display and communications, answering unauthorised writes with exception 01. It ships disabled with the password set to 0 and guards writes only, so enable it and keep the meter on a trusted network.12
ReliabilitySupported with conditions
The meter complies with IEC 61000-6-2 immunity at level 3 and meets ANSI/IEEE C37.90.1. The guide documents exception codes, response times of 9 to 15 ms and device diagnostics. The standard clock keeps time for about 30 seconds without power; the TOU module adds a battery-backed clock. Treat failed reads as missing data.12
RuggednessSupported with conditions
Rated -30 to +60 °C operating, IP54 front panel, pollution degree 2, measuring inputs to installation category III and 3000 V AC isolation on the RS-485 port. Panel or DIN-rail mounting inside an enclosure.23
ScalabilitySupported with conditions
Modbus addresses 1 to 247, up to 115.2 kbit/s, and 120 user-assignable registers that can gather scattered points into one read. The Ethernet module allows only two Modbus TCP connections at a time.12
LifecycleSupported with conditions
Firmware can be upgraded through the serial or Ethernet port and its version is readable at 46100. SATEC publishes the reference guide's revision history from 2007 to 2022 and a July 2024 datasheet. The warranty is 24 months from dispatch, capped at 36 months from production. No support period or end-of-sale date is stated.123

Setup

Read signed total kW from decimal register 14336

PM130 PLUS Modbus reference guide BG0427 Rev. A10, section 3.4, lists the 1-second total kW at registers 14336 and 14337 as INT32 with unit U3, and section 2.7.2 sends 32-bit values low word first and shows how to take the high word as signed. This example is a site exporting 12 kW from solar PV, read with the default low resolution. Use the map as the starting point and compare the result with the display.

Request
01 03 38 00 00 02 C9 6B: Modbus address 1, FC03, register 14336 (0x3800), two registers, RTU CRC. Over Modbus TCP the same function, address and length go to port 502. To check the resolution first, 01 03 09 56 00 01 67 86 reads register 2390.
Address convention
The guide's register numbers are the zero-based PDU addresses in decimal: send 14336, which is 0x3800. A client that numbers holding registers from one shows it as 414337. Do not send 14337 or 414337 as the address.
Synthetic response
01 03 04 FF F4 FF FF 8A 65: four data bytes, low word FF F4 first, then high word FF FF.
Decode
INT32 with the low word first: the high word 0xFFFF is above 32767, so it is -1 as a signed value, and -1 × 65536 + 0xFFF4 (65524) = -12. With low resolution U3 is 1 kW, so total kW is -12 kW: the site is exporting. With high resolution and a PT ratio of 1 the same power arrives as -12000 in watts. A client that takes the high word first reads 0xFFF4FFFF = -720,897.
Acceptance
Keep the point when its size and sign agree with total kW on the meter display at the same time. If they do not, check the resolution at 2390, the 32-bit register type at 246, the word order and the CT direction before adding more points.

Acceptance: The response bytes are a synthetic decoder check, not a captured meter reply. A real reply must agree with the display before voltage, current and energy points are enabled.

  1. Identify the meter

    Read the model from the front label or the device information page: PM130P, PM130E or PM130EH PLUS. Note whether an ETH, RS232 or other module is fitted at the back, and record the wiring mode, PT ratio and CT primary current from the basic settings.

  2. Read the port settings

    COM1 is factory set to Modbus RTU, address 1, 9600 bit/s and 8 data bits with no parity. With the ETH module, the network setup menu shows the IP address. Enter the same values in the Edge client and leave the meter's settings as they are.

  3. Wire the connection

    For RS-485, connect the pair and the shield to the three-pin COM1 connector, give each meter its own address and terminate both ends of the bus. For Modbus TCP, connect the ETH module's RJ45 port to the site network.

  4. Make two reads

    Read register 2390, one register, to learn the device resolution. Then read total kW at 14336 for two registers and decode it as a signed value, low word first, as in the worked read below. Compare the result with the total kW on the display.

  5. Add the points you need

    Add voltages, currents and, on a PM130E or PM130EH, the energy counters from 14720. Check register 246 if any value looks like a float, and keep writes out of the polling configuration.

Common questions

Why does power read -12000 on one meter and -12 on another?
The device resolution setting changes the units. Low resolution, the default, sends power in 1 kW, volts in 1 V and amps in 1 A; high resolution, order code H, sends 1 W, 0.1 V and 0.01 A when the PT ratio is 1. Read register 2390 (0 low, 1 high) and set the scale in Edge to match.13
Why is total kW negative?
Total kW at 14336 is a signed INT32. A negative value means power flows from the load side back to the supply side, for example from solar PV. The meter also gives kW import and kW export as two unsigned values at 14348 and 14350 if the platform prefers positive numbers.1
Why does a 32-bit value read as nonsense?
The client is taking the high word first. The PM130 PLUS sends the low-order word in the first register and the high-order word in the second, for integers and floats alike. Swap the two registers in the Edge point definition.1
Which PM130 PLUS has energy registers?
The PM130E and PM130EH. The reference guide marks the energy and power demand registers E, available in those two models, and the harmonic registers EH. Read the model ID at register 46082 to confirm: 13010 is a PM130P, 13020 a PM130E and 13030 to 13032 a PM130EH.13
Can Edge read a PM130 PLUS on a DC circuit?
Yes, over the same Modbus map. The DCC order option measures current from shunts of up to 100 mV and the meter runs in DC mode, shown at register 2395. SATEC states that harmonic, frequency, power factor, reactive power and angle registers are not relevant in DC mode, so leave them out of the poll.13
Can Modbus writes change the meter's settings?
Yes. Setup, reset, relay and password registers are writable. The meter ships with the password preset to 0 and password protection disabled; when it is enabled, every write must be preceded by the password at register 2575, or the meter answers with exception code 01. A monitoring configuration should read with FC03 only.12

Sources

  1. Series PM130 PLUS Powermeters PM130P/PM130E/PM130EH Modbus communications protocol reference guide, BG0427 Rev. A10 (March 2022) (opens in a new tab) (PDF) SATEC
  2. PM130 PLUS Powermeter Series PM130P/PM130E/PM130EH installation and operation manual, BG0425 Rev. A22 (opens in a new tab) (PDF) SATEC
  3. PM130 PLUS datasheet, July 2024, with models and order string (opens in a new tab) (PDF) SATEC

Further reading

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