Honeywell UDC2800 User Manual

Parameter Description
Register Address
Access Description
Hex Decimal
Bit 0: seconds
1: minutes
2: hours
3-15: Unused
NOTE:
UDC2800
does not
support
seconds
Ramp Units
20FB 48444 R Bit Packed
Bit 0:0: Time; 1:
Rate Bit
1-15: Unused
Program End Segment (Program 1
only)
20FD
48446
R/W Bit Packed
Bit 0: 1: 2
1: 1: 4
2: 1: 6
3: 1: 8
Program Termination State
20FE 48447 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
Program State at Program End
20FF 48448 R/W Bit Packed
Bit 0: 0: Disable; 1:
421
Chapter 12 - Standard Modbus Read, Write and Override Parameters

Honeywell UDC2800 Specifications

General

Control Modes	PID, ON/OFF, Manual
Mounting	Panel Mount
Display	Dual 4-digit LED
Input Types	Thermocouple, RTD, mA, mV, V
Output Types	Relay
Power Supply	100-240 VAC, 50/60 Hz
Communication	RS-485 Modbus RTU
Enclosure Rating	NEMA 4X