Byte 7 6 5 4 3 2 1 0 Description
Byte 2 Number of HART repetitions (0...10)
Initial value from parameter data record 128
Byte 3 Number of HART preamble bytes (0, 5...20, 255)
Initial value = 5*
Byte 4 Must be 0 Field device mode according to HART specication
Byte 5 Client timeout in s (1...255 s)
Initial value = 60 s
Byte 6 0 0 0 0 0 0 Initial value according to HART activation from parameter
data record 128 always as primary master
Bit 0: 1 = Switch on HART
0 = Switch o HART
Bit 1: 1 = Primary master
0 = Secondary master
Byte 7 Must be 0 Reserved
Settings
* When the number of HART preamble bytes = 0, the number of preamble bytes required by the
connected eld device is used, but no fewer than 5.
If number of HART preamble bytes = 255, 20 preamble bytes are used.
Appendix
A.6 HART operating data records
ET 200iSP
Operating Instructions, 11/2022, A5E00247483-AK 461
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