Schneider Electric Symmetra PX Modbus register map
APC Symmetra PX 20 to 160 kVA three-phase UPS, through the Network Management Card 2 (Modbus TCP) or the AP9635 card (Modbus RTU)
- Official
- 139 registers
- Modbus TCP and RTU
- Revision 3 · 2026-10-24
Official: Written from the manufacturer's documentation, but not tested on a device yet. Check the map against the manufacturer's documentation before you write to a live device. Tested it? Report a test.
Communication
- Protocol
- Modbus TCP and RTU
- Unit ID
- 1default
- TCP port
- 502default
- Serial
- 9600 8E1 · 9600 baud, 8 data bits, even parity, 1 stop bit defaults
- Byte / word order
- ABCD · bytes big-endian, words high first
- Addresses
- 0-based
- Max read
- 26 registers per request
Connection values are defaults: the device may be configured differently.
Map
- Registers
- 139 holding registers
- Groups
- 7
- Revision
- 3 · 2026-10-24
- Firmware
- NMC2 application sy3p or px2, version 6.5.0 or later
- Added
- ()
- File
- maps/schneider-electric/symmetra-px.mbmap.json · 20 KB · history
- SHA-256
- e37472518eb5fec9f398b5f2d3ad854081076039bc6723859c2877986e2ed4b7
- Manufacturer
- se.com
Sources and notes
- Modbus Register Map: Symmetra PX 20/40/48/80/96/100/160 kVA · version 990-91054, R1, 2018-10-09
Source: Modbus Register Map, Symmetra PX 20/40/48/80/96/100/160 kVA, 990-91054 (SPD_MBPN-APFGZ7_EN, R1)
- For the 250 and 500 kVA models use the 'Symmetra PX 250/500 kVA' map.
- Function codes 3 and 4 read the same registers; nothing is writable. Address 0 is register 40001. Read at most 26 registers per request; a single read of a reserved register returns an error.
- 16-bit values, big-endian. The status registers (0-5, 53, 54) are bit maps; bits are consistent within one register only.
- Serial settings (address, baud rate, parity) are set on the management card; see the AP9635 user's guide. The defaults here are the format's.
- The 'n+x' output percentages are against the capacity left with the configured redundancy.
- Written from the manufacturer's register map; not tested on a device.
| Area | Address | Name | Type | Access | Unit | Scale | Description |
|---|---|---|---|---|---|---|---|
| HR | 0 | bool bit 0 | R | ||||
| HR | 0 | bool bit 1 | R | ||||
| HR | 0 | bool bit 2 | R | ||||
| HR | 0 | bool bit 3 | R | ||||
| HR | 0 | bool bit 4 | R | ||||
| HR | 0 | bool bit 5 | R | ||||
| HR | 0 | bool bit 6 | R | ||||
| HR | 0 | bool bit 7 | R | ||||
| HR | 1 | bool bit 0 | R | ||||
| HR | 1 | bool bit 1 | R | ||||
| HR | 1 | bool bit 2 | R | ||||
| HR | 1 | bool bit 3 | R | ||||
| HR | 1 | bool bit 4 | R | ||||
| HR | 1 | bool bit 5 | R | ||||
| HR | 1 | bool bit 6 | R | ||||
| HR | 1 | bool bit 7 | R | ||||
| HR | 2 | bool bit 0 | R | ||||
| HR | 2 | bool bit 1 | R | ||||
| HR | 2 | bool bit 3 | R | ||||
| HR | 2 | bool bit 4 | R | ||||
| HR | 2 | bool bit 5 | R | ||||
| HR | 3 | bool bit 0 | R | ||||
| HR | 3 | bool bit 1 | R | ||||
| HR | 3 | bool bit 2 | R | ||||
| HR | 3 | bool bit 3 | R | ||||
| HR | 3 | bool bit 4 | R | ||||
| HR | 3 | bool bit 5 | R | ||||
| HR | 3 | bool bit 6 | R | ||||
| HR | 3 | bool bit 7 | R | ||||
| HR | 4 | bool bit 0 | R | ||||
| HR | 4 | bool bit 1 | R | ||||
| HR | 4 | bool bit 2 | R | ||||
| HR | 4 | bool bit 3 | R | ||||
| HR | 4 | bool bit 4 | R | ||||
| HR | 4 | bool bit 5 | R | ||||
| HR | 4 | bool bit 6 | R | ||||
| HR | 4 | bool bit 7 | R | ||||
| HR | 4 | bool bit 8 | R | ||||
| HR | 4 | bool bit 9 | R | ||||
| HR | 4 | bool bit 10 | R | ||||
| HR | 4 | bool bit 11 | R | ||||
| HR | 5 | bool bit 0 | R | ||||
| HR | 5 | bool bit 1 | R | ||||
| HR | 5 | bool bit 2 | R | ||||
| HR | 5 | bool bit 3 | R | ||||
| HR | 5 | bool bit 4 | R | ||||
| HR | 5 | bool bit 5 | R | ||||
| HR | 5 | bool bit 6 | R | ||||
| HR | 5 | bool bit 7 | R | ||||
| HR | 5 | bool bit 8 | R | ||||
| HR | 5 | bool bit 9 | R | ||||
| HR | 5 | bool bit 10 | R | ||||
| HR | 5 | bool bit 11 | R | ||||
| HR | 5 | bool bit 12 | R | ||||
| HR | 5 | bool bit 13 | R | ||||
| HR | 5 | bool bit 14 | R | ||||
| HR | 5 | bool bit 15 | R | ||||
| HR | 6 | uint16 | R | ||||
| HR | 7 | uint16 | R | % | |||
| HR | 8 | uint16 | R | min | |||
| HR | 9 | uint16 | R | V | |||
| HR | 10 | uint16 bits 0–7 | R | °C | Valid only when the high byte is 0 | ||
| HR | 10 | uint16 bits 8–15 | R | ||||
| HR | 11 | uint16 | R | A | |||
| HR | 12 | uint16 | R | ||||
| HR | 13 | uint16 | R | ||||
| HR | 14 | uint16 | R | % | Percent of rated load in watts | ||
| HR | 15 | uint16 | R | V | Since the last reading | ||
| HR | 16 | uint16 | R | V | Since the last reading | ||
| HR | 17 | uint16 | R | V | |||
| HR | 18 | uint16 | R | V | |||
| HR | 19 | uint16 | R | Hz | |||
| HR | 20 | uint16 | R | V | |||
| HR | 21 | uint16 | R | A | |||
| HR | 22 | uint16 | R | V | |||
| HR | 23 | uint16 | R | % | |||
| HR | 24 | uint16 | R | % | Redundancy rating | ||
| HR | 25 | uint16 | R | kVA | |||
| HR | 26 | uint16 | R | V | |||
| HR | 27 | uint16 | R | A | |||
| HR | 28 | uint16 | R | A | |||
| HR | 29 | uint16 | R | V | |||
| HR | 30 | uint16 | R | A | |||
| HR | 31 | uint16 | R | V | |||
| HR | 32 | uint16 | R | % | |||
| HR | 33 | uint16 | R | % | Redundancy rating | ||
| HR | 34 | uint16 | R | kVA | |||
| HR | 35 | uint16 | R | V | |||
| HR | 36 | uint16 | R | A | |||
| HR | 37 | uint16 | R | A | |||
| HR | 38 | uint16 | R | V | |||
| HR | 39 | uint16 | R | A | |||
| HR | 40 | uint16 | R | V | |||
| HR | 41 | uint16 | R | % | |||
| HR | 42 | uint16 | R | % | Redundancy rating | ||
| HR | 43 | uint16 | R | kVA | |||
| HR | 44 | uint16 | R | V | |||
| HR | 45 | uint16 | R | A | |||
| HR | 46 | uint16 | R | A | |||
| HR | 47 | uint16 | R | °C | Environmental monitoring card, sensor 1 |
No registers match
Try part of the name, an address (decimal or 0x hex) or clear the filters.
Help improve this map
- I tested it on a deviceReport whether it worked, even if you did not write the map.
- Suggest a correctionEdit the file on GitHub; it opens a pull request.
- Report a problemA wrong address, type, scale or byte order.
- Read the formatWhat each key of the file means (SPEC.md).