Peripheral address format

The peripheral address is a string from which a unique hardware address can be derived. The address format is based on the format used for the PLC programming. Since the drivers store the conversion in a special data point, there is no need to attach a suffix describing the data format. In addition, for bit strings the bit number is not specified in the peripheral address but in the subindex. This can take any value >= 0, and is not restricted to the number of bits in a word or byte.

Absolute addresses

m specifies the block number, and lies between 0 and 0xFFFF.

NB: absolute address are not currently supported in the configuration panel.

Data format	Address format	Data length	Value range
Unsigned Integer 16	ASm	2 Byte	0...65535
Siemens KC	ASm	2 Byte	0...999
Siemens KT	ASm	2 Byte	Siemens KT format

Outputs

m specifies the block number, and lies between 0 and 255 maximum.

NB: outputs can only be read.

Data format	Address format	Data length	Value range
Bit	Am	1 Byte	0, 1
Integer 8	ABm	1 Byte	-128...127
Unsigned Integer 8	ABm	1 Byte	0...255
Integer 16	AWm	2 Byte	-32768...32767
Unsigned Integer 16	AWm	2 Byte	0...65535
BCD 16	AWm	2 Byte	-999...999
Siemens KC	AWm	2 Byte	0...999
Siemens KT	AWm	2 Byte	Siemens KT format
Integer 32	ADm	4 Byte	-2147483648...214783647
Unsigned Integer 32	ADm	4 Byte	0...4294567295
BCD 32	ADm	4 Byte	-9999999...9999999
Float	ADm	4 Byte	Floating-point number

Data blocks

m specifies the block number, and lies between 0 and 255. n specifies the data word within a data block, and lies between 0 and 255 (254 for a data length of 4 bytes).

Data format	Address format	Data length	Value range
Bit	DBmDn	2 Byte	0, 1
Integer 8	DBmDBn	2 Byte	-128...127
Unsigned Integer 8	DBmDBn	2 Byte	0...255
Integer 16	DBmDWn	2 Byte	-32768...32767
Unsigned Integer 16	DBmDWn	2 Byte	0...65535
BCD 16	DBmDWn	2 Byte	-999...999
Siemens KC	DBmDWn	2 Byte	0...999
Siemens KT	DBmDWn	2 Byte	Siemens KT format
Integer 32	DBmDDn	4 Byte	-2147483648...214783647
Unsigned Integer 32	DBmDDn	4 Byte	0...4294567295
BCD 32	DBmDDn	4 Byte	-9999999...9999999
Float	DBmDDn	4 Byte	Floating-point number

Extended data blocks

m specifies the block number, and lies between 0 and 255. n specifies the data word within a data block, and lies between 0 and 255 (254 for a data length of 4 bytes).

Data format	Address format	Data length	Value range
Bit	DXmDn	2 Byte	0, 1
Integer 8	DXmDBn	2 Byte	-128...127
Unsigned Integer 8	DXmDBn	2 Byte	0...255
Integer 16	DXmDWn	2 Byte	-32768...32767
Unsigned Integer 16	DXmDWn	2 Byte	0...65535
BCD 16	DXmDWn	2 Byte	-999...999
Siemens KC	DXmDWn	2 Byte	0...999
Siemens KT	DXmDWn	2 Byte	Siemens KT format
Integer 32	DXmDDn	4 Byte	-2147483648...214783647
Unsigned Integer 32	DXmDDn	4 Byte	0...4294567295
BCD 32	DXmDDn	4 Byte	-9999999...9999999
Float	DXmDDn	4 Byte	Floating-point number

Inputs

m specifies the block number, and lies between 0 and 255.

NB: inputs can only be read.

Data format	Address format	Data length	Value range
Bit	Em	1 Byte	0, 1
Integer 8	Ebm	1 Byte	-128...127
Unsigned Integer 8	Ebm	1 Byte	0...255
Integer 16	Ewm	2 Byte	-32768...32767
Unsigned Integer 16	Ewm	2 Byte	0...65535
BCD 16	Ewm	2 Byte	-999...999
Siemens KC	EWm	2 Byte	0...999
Siemens KT	EWm	2 Byte	Siemens KT format
Integer 32	EDm	4 Byte	-2147483648...214783647
Unsigned Integer 32	EDm	4 Byte	0...4294567295
BCD 32	EDm	4 Byte	-9999999...9999999
Float	Edm	4 Byte	Floating-point number

Flags

m specifies the block number, and lies between 0 and 255 maximum.

NB: flags can only be read.

Data format	Address format	Data length	Value range
Bit	Mm	1 Byte	0, 1
Integer 8	MBm	1 Byte	-128..127
Unsigned Integer 8	MBm	1 Byte	0...255
Integer 16	MWm	2 Byte	-32768...32767
Unsigned Integer 16	MWm	2 Byte	0...65535
BCD 16	MWm	2 Byte	-999...999
Siemens KC	MWm	2 Byte	0...999
Siemens KT	MWm	2 Byte	Siemens KT format
Integer 32	MDm	4 Byte	-2147483648...214783647
Unsigned Integer 32	MDm	4 Byte	0...4294567295
BCD 32	MDm	4 Byte	-9999999...9999999
Float	MDm	4 Byte	Floating-point number

Peripheral

m specifies the block number, and lies between 0 and 255.

NB: peripheral addresses can only be read.

Data format	Address format	Data length	Value range
Bit	Pm	1 Byte	0, 1
Integer 8	PBm	1 Byte	-128...127
Unsigned Integer 8	PBm	1 Byte	0...255
Integer 16	PWm	2 Byte	-32768...32767
Unsigned Integer 16	PWm	2 Byte	0...65535
BCD 16	PWm	2 Byte	-999...999
Siemens KC	PWm	2 Byte	0...999
Siemens KT	PWm	2 Byte	Siemens KT format
Integer 32	PDm	4 Byte	-2147483648...214783647
Unsigned Integer 32	PDm	4 Byte	0...4294567295
BCD 32	PDm	4 Byte	-9999999...9999999
Float	PDm	4 Byte	Floating-point number

Extended peripheral

m specifies the block number, and lies between 0 and 255.

NB: an extended peripheral can only be read.

Data format	Address format	Data length	Value range
Bit	Qm	1 Byte	0, 1
Integer 8	QBm	1 Byte	-128...127
Unsigned Integer 8	QBm	1 Byte	0...255
Integer 16	QWm	2 Byte	-32768...32767
Unsigned Integer 16	QWm	2 Byte	0...65535
BCD 16	QWm	2 Byte	-999...999
Siemens KC	QWm	2 Byte	0...999
Siemens KT	QWm	2 Byte	Siemens KT format
Integer 32	QDm	4 Byte	-2147483648...214783647
Unsigned Integer 32	QDm	4 Byte	0...4294567295
BCD 32	QDm	4 Byte	-9999999...9999999
Float	QDm	4 Byte	Floating-point number

System address

m specifies the block number, and lies between 0 and 255.

NB: system addresses can only be read.

Data format	Address format	Data length	Value range
Integer 16	BWm	2 Byte	-32768...32767
Unsigned Integer 16	BWm	2 Byte	0...65535

Timer

m specifies the block number, and lies between 0 and 255.

NB: timers can only be read.

Data format	Address format	Data length	Value range
Siemens KT	Tm	2 Byte	Siemens KT format

Counter

m specifies the block number, and lies between 0 and 255.

NB: counters can only be read.

Data format		Address format		Data length		Value range
Unsigned Integer		Zm		2 Byte		0...65535

V 3.11 SP1