
Appendix B: CRC-16 Calculation
02/13 Modbus® RTU Serial Communications User Manual 61
Address
(hex)
Register
(decimal)
Channel Number Access Notes
1F44 48005 Program End Segment
UDC3500 Only
for Program Number 1 - 4
R
W
Unsigned 16-bit Integer
End segment 1 to End segment 20
Bit Packed
2 = Soak Segment 2
4 = Soak Segment 4
6 = Soak Segment 6
8 = Soak Segment 8
10 = Soak Segment 10
12 = Soak Segment 12
14 = Soak Segment 14
16 = Soak Segment 16
18 = Soak Segment 18
20 = Soak Segment 20
(Odd numbers are illegal)
1F45 48006 Program Number
UDC3500 Only
R/W UDC3500 Program #1 - #4
Enhanced Setpoint Program Only
Note 1: UDC2300, UDC2500, UDC3200, UDC3300, UDC3500 Only
Note 2: UDC2300, UDC2500, UDC3200, UDC3300, UDC3500 does not support seconds
Note 3: UDC2300 does not permit writing to this register
Note4: UDC2300, UDC2500, UDC3200, UDC3300, UDC3500 read only
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