Last seen: Sep 19, 2026
Two word orders in one register map. That's a new one on me.
Two tables at the same numbers, every flow computer does it, never heard why.
Meter 6 getting reads through swapped, I can't explain that one either.
The x0.1 column you skipped is the ten. The meter sends kW as an integer with one decimal implied, 1874 is 187.4 kW, and the current the same, 2310 is...
It'll be the three blocks. Some RTUs are slow to answer a second request straight after the first. Merge them, read the whole span in one go and ignor...
TX and no RX is exactly what a request to slave 255 looks like.
Word swap. Swap the two words before the DWORD to REAL move. Every flow computer I've met does it the other way round to the PLC.
It means everything. 17352 is 0x43C8 and 29056 is 0x7180. Put them together as 0x43C87180 and that is 400.9 as a float, your 401. Your meter sends the...
How many registers per site, one block or several? And are the twelve polled one after the other, or all at once?
Enabled flying start last night. Windy this morning, wheel going backwards steady. Start went in, the display showed a negative frequency, swung throu...
Two problems, both classic. Idle voltage near zero at the far end means there's no bias anywhere, so the line floats and the far receivers read noise ...
Off by one is my first guess always, 47001 in the block being register 7000 on the wire. You've tried both sides, fine. Post the manual page for those...
255 is the problem. On most straight TCP devices the unit ID is decoration, they'll answer to anything. Through a serial gateway it's the only thing t...
Off by one, the oldest Modbus problem there is and I have lost days to it myself. The manual's 3000 is the protocol address, counting from 0. MB_CLIE...
Instant. Zero on the display, trip, nothing in between. No idea about DC brake, I've never been into that group on a 525 and I'd rather not guess at i...