Honeywell UDC2500 manual Set-up Group Communications

Modbus Read, Write and Override Parameters plus Exception Codes

10.7.10Communications

Table 10-18lists all the register addresses and ranges or selections for the function parameters in Set-up Group Communications.

		Table 10-18 Set-up Group – Communications
Parameter	Register			Data	Access		Data Range or
Description	Address			Type			Enumerated Selection
	Hex		Decimal
Communication	004D		77	FP	R/W	1 - 99
Address
Communications	00E7		231	INT	R/W	0 = None
Type						1	= Disable
						2	= RS-485 Modbus
						3	= Ethernet
IR Port Enable	00F1		241	INT	R/W	0 = Disable
						1	=- Enable
Baud Rate	00E8		232	INT	R/W	0 = 4800
						1	= 9600
						2	= 19200
						3	= 38400
Transmit Delay	004E		78	FP	R/W	Response Delay in ms
						(1 to 500) +6ms
Floating Point	00E9		233	INT	R/W	0 = Big Endian
Byte Order						1	= Big Endian Byte Swap
						2	= Little Endian
						3	= Little Endian Byte Swap
Shed Enable	00EA		234	INT	R/W	0 = Enable
						1	= Disable
Shed Time	004F		79	INT	R/W	0 = No Shed
						1 = 255 sample periods
Shed Mode and	00A2		162	INT	R/W	0 = Last Mode and Last Output
Output						1	= Manual Mode, Last Output
						2 = Manual Mode, Failsafe Output
						3	= Automatic Mode
Shed Setpoint	00A3		163	INT	R/W	0 = To Last Local Setpoint used
Recall						1	= CSP
Computer	005A		90	FP	R/W	–20.00 to 20.00
Setpoint Ratio
Computer	005B		91	FP	R/W	–999 to 9999.
Setpoint Bias
Comm Data	00A1		161	INT	R/W	0 = Percent
Units						1	= Engineering Units

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