
Appendix B: CRC-16 Calculation
54 Modbus® RTU Serial Communications User Manual 02/13
A.15 Alarm Status Register Map
Address
(hex)
Register
(decimal)
Channel Number Access Notes
1BF0 47153 Alarm Status #1 - #16 R Bit Packed
Bit 0: Alarm #1 Status
Bit 1: Alarm #2 Status
Bit 2: UDC3500 Alarm #3 Status
Bit 3: UDC3500 Alarm #4 Status
:
Bit 15: Alarm #16 Status
0: Alarm OFF
1: Alarm ON
1BF1 47154 Alarm Status #17 - #32 R Bit Packed
Bit 0: Alarm #17 Status
Bit 1: Alarm #18 Status
:
Bit 15: Alarm #32 Status
0: Alarm OFF
1: Alarm ON
1BF2 47155 Alarm Status #33 - #48 R Bit Packed
Bit 0: Alarm #33 Status
Bit 1: Alarm #34 Status
:
Bit 15: Alarm #48 Status
0: Alarm OFF
1: Alarm ON
1BF3 47156 Alarm Status #49 - #64 R
:
1BF4 47157 Alarm Status #65 - #80 R
:
1BF5 47158 Alarm Status #81 - #96 R
:
: : : :
:
1BFF 47168 Alarm Status #240 - #256 R
:
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