4 under-range flag bits u0 to u3 (word 1), 5 hold last state bits h0 to h3 (word 1), 6 channel x – Spectrum Controls 1769sc-HART Modules User Manual
Page 55: Command value echo (words 2 to 5), 7 hart packet data (words 6 to 25), 8 message slave control (word 26), 9 message reply size (word 27)
