Pm2100 Modbus Register List ((top)) Jun 2026

| Exception Code | Name | Cause & Solution | |----------------|------|------------------| | 01 | Illegal Function | You requested function code 0x05 (Force Single Coil) on a register address. Use 0x03/0x06/0x10. | | 02 | Illegal Data Address | You requested a register outside the valid PM2100 map (e.g., address 9999). | | 03 | Illegal Data Value | You wrote a value out of range (e.g., CT ratio = 80000). | | 04 | Slave Device Failure | Internal PM2100 error – check power supply and grounding. |

Every engineer implementing a PM2100 eventually hits the "Off by One" error. pm2100 modbus register list

: Write your configuration commands here using the semaphore acquired in step 1. | Exception Code | Name | Cause &