search

reaper7 / SDM_Energy_Meter

reading SDM72 SDM120 SDM220 SDM230 SDM630 modbus energy meters from arduino (esp8266, esp32, avr)
240 stars 97 forks source link

Error code: 2 #53

Closed bluemanos closed 3 years ago

bluemanos commented 3 years ago

For my Wemos D1 mini and HardwareSerial with default TX/RX pins I was getting a lot of errors with code 4 and 2. After changing the RESPONSE_TIMEOUT to 1000 and add a delay(100) before every read I decreased errors to just 1-3 per one read cycle (I'm reading 22 values in a cycle). Now just error code 2 is happening. What can I do next to eliminate it?

reaper7 commented 3 years ago

do you have only one modbus slave device on rs485 line or more? For me it's a poor connection ... long lines without twisted pair cable or more than one slave device with the same slave address.

bluemanos commented 3 years ago

You are good :) 1st yes - I was testing this on a long cable (10 m), but lines of the cable are twisted - ethernet cat 5 cable. 2nd yes - indeed I was checking a single SDM 630 energy meter with two software/hardware (one working for months on ESPEasy), the second one with your implementation at EspHome.

After all my tests I finally moved the wemos to the garage to monit a second Eastron and all error codes 2 moved away. But still, I have to use delay 100 to avoid error code 4 :/ It is strange that on a different Eastron, different rs485 modules I'm getting so many errors :/

Anyway - solution of the topic have been described, so I'm closing the issue. Thank you for your time :)

Dzięki za projekt, dobra robota. Powodzenia :)