AVEVA™ Communication Drivers

Address descriptions

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Address descriptions

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Last UpdatedSep 16, 2024
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The address descriptions consist of the register type, its item name and the allowable range of values, the default data type, allowable suffixes (if any), and allowable access methods.

Register Type	Item Reference		Length	Data Types	Access
Register Type	Item Name	Range	Length	Data Types	Access
Input	X	0000 to 3FFF (hex)	1 bit	-	Read/Write
Direct Input	DX	0000 to 3FFF (hex)	1 bit	-	Read/Write
Output	Y	0000 to 3FFF (hex)	1 bit	-	Read/Write
Direct Output	DY	0000 to 3FFF (hex)	1 bit	-	Read/Write
Link Relay	B	0000 to 3FFF (hex)	1 bit	-	Read/Write
Special Link Relay	SB	0000 to 07FF (hex)	1 bit	-	Read/Write
Internal Relay	M	0 to 16383	1 bit	-	Read/Write
Special Internal Relay	SM	0 to 2047	1 bit	-	Read/Write
Latch Relay	L	0 to 16383	1 bit	-	Read/Write
Step Relay	S	0 to 16383	1 bit	-	Read/Write
Edge Relay	V	0 to 2047	1 bit	-	Read/Write
Annunciator Relay	F	0 to 2047	1 bit	-	Read/Write
Timer Contacts	TS	0 to 2047	1 bit	-	Read/Write
Timer Coil	TC	0 to 2047	1 bit	-	Read/Write
Timer Value	TN	0 to 2047	2 bytes	Word, BCD	Read/Write
Integrating Timer Contact	SS	0 to 2047	1 bit	-	Read/Write
Integrating Timer Coil	SC	0 to 2047	1 bit	-	Read/Write
Integrating Timer Value	SN	0 to 2047	2 bytes	Word	Read/Write
Counter Contact	CS	0 to 1023	1 bit	-	Read/Write
Counter Coil	CC	0 to 1023	1 bit		Read/Write
Counter Value	CN	0 to 1023	2 bytes	Word, BCD	Read/Write
Data Register	D	0 to 12287	2 bytes	Word, BCD	Read/Write
		0 to 12286			Read/Write
Data Register, bit access	D	0.0 to 12287.15	2 bytes	DWord, LBCD, Float	Read/Write
Data Register, string access, HiLo byte ordering	DSH	0.2 to 12286.2	String	String	Read/Write
Special Data Register	SD	0.128 to 12223.128	2 bytes	Word, BCD	Read/Write
		0 to 2047		DWord, LBCD, Float	Read/Write
		0 to 2046			Read/Write
Link Register	W	0000 to 3FFF (hex)	2 bytes	Word, BCD	Read/Write
		0000 to 3FFE (hex)		DWord, LBCD, Float	Read/Write
Link Register, bit access	W	0000.00 to 3FFF.15 (hex)	2 bytes	-	Read/Write
Link Register, string access, HiLo byte ordering	WSH	0000.002 to 3FFE.002 (hex)	String	String	Read/Write
Special Link Register	SW	0000.128 to 3FBF.128 (hex)	2 bytes	Word, BCD	Read/Write
		0000 to 07FF (hex)		DWord, LBCD, Float	Read/Write
Index Register	Z	0000 to 15	2 bytes	Word, BCD	Read/Write
		0000 to 14	2 bytes	DWord, LBCD, Float	Read/Write
Index Register, bit access	Z	00.00 to 15.15	4 bytes	-	Read/Write
File Register	R	00.00 to 14.31	2 bytes	Word, BCD	Read/Write
		0000 to 32767		DWord, LBCD, Float	Read/Write
		0000 to 32766			Read/Write
File Register, bit access	R	0000.00 to 32767.15	2 bytes		Read/Write
		0000.002 to 32766.002			Read/Write
File Register, strings access, HiLo byte ordering	RSH	0000.128 to 32703.128	String	String	Read/Write

AVEVA™ Communication Drivers

Address descriptions

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Address descriptions

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