
Appendix B: CRC-16 Calculation
02/13 Modbus® RTU Serial Communications User Manual 59
A.18 Set Point Programmer Additional Values Register Map
Address
(hex)
Register
(decimal)
Channel Number Access Notes
1F3A 47995 Time Units R/W Bit Packed
Bit 0: seconds
1: minutes
2: hours
3-15: Unused
Notes 2, 4
1F3B 47996 Ramp Units R/W Bit Packed
Bit 0: 0:Time; 1:Rate
Bit 1-15: Unused
Note 4
1F3D 47998 Program End Segment
(Program 1 only)
R/W Bit Packed
Bit 0: 1: 2
1: 1: 4
2: 1: 6
3: 1: 8
4: 1: 10
5: 1: 12
6: 1: 14
7: 1: 16
8: 1: 18
9: 1: 20
Note 1
1F3E 47999 Program Termination State R/W Bit Packed
Bit 0: 0: Last SP
(Hold at last SP in program)
1: F'SAFE
(Manual mode, failsafe output)
1-15: Unused
Note 1
1F3F 48000 Program State at Program End R/W Bit Packed
Bit 0: 0: Disabl; 1: Hold
1-15: Unused
Note 1
1F40 48001 Engineering Units for Ramp
Segments
R/W Bit Packed
Bit 0: 0: Hrs:Mins
0: 1: Degrees/Min
1: 1: Degrees/Hour
2-15: Unused
Note 1
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