Honeywell UDC2500 manual Setpoint Code Selections, Setpoint Associated Parameters

Modbus Read, Write and Override Parameters plus Exception Codes

10.5 Setpoints

Overview

You can use two separate local setpoints in the controller. The identifying register addresses listed in Table 10-5allow you to select which setpoint you want to use and to enter a value in Engineering Units (whichever is selected at register address 00A1) for that setpoint via communications.

Register Addresses

Make your selection using register address 00AD and enter the value for the setpoint chosen using register address in Table 10-5.

Table 10-5 Setpoint Code Selections

Parameter	Register		Data	Access	Data Range or
Description	Address		Type		Enumerated Selection
	Hex	Decimal
Local Setpoint #1	0027	039	FP	R/W	Value within the setpoint
					range limits
Local Setpoint #2	0035	053	FP	R/W	Value within the setpoint
					range limits
Number of Local	00AD	173	INT	R/W	00 = Local Setpoint #1
Setpoints					only
					01 = 2nd Local Setpoint via
					keyboard or
					communications

Associated Parameters

Refer to Table 10-6to display or change any of the parameters associated with the setpoint.

Table 10-6 Setpoint Associated Parameters

Parameter		Register Address
	Hex		Decimal
Setpoint Limits	0007, 0008		007, 008
Computer Setpoint	007D		125

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