.iv Inventory Command

Performs an inventory of transponders within the read range of the reader. Returns an error if no transponders are found.

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Parameters

Identifier	Values	Description
-al	on/off	perform an alert after a successful inventory using the current alert parameters from the .al command
-c	on/off	Include EPC checksum response
-dr	off/on/rnd/clr	Duplicate removal (where supported)
-dt	on/off	Include date time response
-e	on/off	Include EPC PC information response
-fi	on/off	Impinj fast ID extension. If set, Transponders which support this feature will include their TID in the response
-fs	on/off	filter out all but the strongest RSSI response
-ic	on/off	Include the phase response
-ip	on/off	Include the channel frequency response
-ie	on/off	Include the EPC response
-io	on/off	Inventory only, if set to on then no select will be performed before the inventory round is started
-ix	on/off	Index number each transponder response
-n		No action, just set the parameters
-o	nn	Output power in dBm, where nn is in the range 10 to 29
-p		List the parameter and their current values
-qa	fix/dyn	Q algorithm
-ql	all/nsl/sl	query Select
-qs	s0/s1/s2/s3	query Session
-qt	a/b	query Target
-qv	nn	Q value for fixed Q operations (0..15)
-r	on/off	Include transponder RSSI response
-sa	n	Select action
-sb	epc/tid/usr	Bank to use for the select mask
-sd	xx..zz	Select mask data in 2 character ASCII Hex pairs padded to ensure full bytes
-sl	xx	Length in bits of the select mask, where xx is a 2 character ASCII Hex value
-so	xxxx	Number of bits from the start of the block to the start of the select mask, where xxxx is a 4 character ASCII Hex value
-st	s0/s1/s2/s3/sl	Select target
-tf	on/off	Impinj tag focus extension. Only effective if qs=s1, qt=a and if supported by the transponder.
-x		Reset the parameters to defaults

Parameter detail

-al

perform an alert after a successful inventory using the current alert parameters from the .al command

Type	Enum
Value	on/off
Range	on/off
Order In Interpretation	2
Default Value	on

-c

Include EPC checksum response

Type	Enum
Value	on/off
Range	on/off
Order In Interpretation	3
Default Value	off

-dr

Duplicate removal (where supported)

Type	Enum
Value	off/on/rnd/clr
Range	off/on/rnd/clr
Order In Interpretation	9
Default Value	off

-dt

Include date time response

Type	Enum
Value	on/off
Range	on/off
Order In Interpretation	10
Default Value	off

-e

Include EPC PC information response

Type	Enum
Value	on/off
Range	on/off
Order In Interpretation	4
Default Value	off

-fi

Impinj fast ID extension. If set, Transponders which support this feature will include their TID in the response

Type	Enum
Value	on/off
Range	on/off
Order In Interpretation	26
Default Value	off

-fs

filter out all but the strongest RSSI response

Type	Enum
Value	on/off
Range	on/off
Order In Interpretation	11
Default Value	off

-ic

Include the phase response

Type	Enum
Value	on/off
Range	on/off
Order In Interpretation	6
Default Value	off

-ip

Include the channel frequency response

Type	Enum
Value	on/off
Range	on/off
Order In Interpretation	7
Default Value	off

-ie

Include the EPC response

Type	Enum
Value	on/off
Range	on/off
Order In Interpretation	8
Default Value	on

-io

Inventory only, if set to on then no select will be performed before the inventory round is started

Type	Enum
Value	on/off
Range	on/off
Order In Interpretation	18
Default Value	on

-ix

Index number each transponder response

Type	Enum
Value	on/off
Range	on/off
Order In Interpretation	12
Default Value	off

-n

No action, just set the parameters

Type	Switch
Value
Range
Order In Interpretation	29

-o

Output power in dBm, where nn is in the range 10 to 29

Type	Output power
Value	nn
Range
Order In Interpretation	17
Default Value	29

-p

List the parameter and their current values

Type	Switch
Value
Range
Order In Interpretation	28

-qa

Q algorithm

Type	Enum
Value	fix/dyn
Range	fix/dyn
Order In Interpretation	21
Default Value	dyn

-ql

query Select

Type	Enum
Value	all/nsl/sl
Range	all/nsl/sl
Order In Interpretation	22
Default Value	all

-qs

query Session

Type	Enum
Value	s0/s1/s2/s3
Range	s0/s1/s2/s3
Order In Interpretation	23
Default Value	s1

-qt

query Target

Type	Enum
Value	a/b
Range	a/b
Order In Interpretation	24
Default Value	a

-qv

Q value for fixed Q operations (0..15)

Type	Output power
Value	nn
Range
Order In Interpretation	25
Default Value	4

-r

Include transponder RSSI response

Type	Enum
Value	on/off
Range	on/off
Order In Interpretation	5
Default Value	off

-sa

Select action

Parameter n=	Matching Action		Non Matching Action
	SL Flag	Session Flag	SL Flag	Session Flag
0	assert	Set A	deassert	Set B
1	assert	Set A	nothing	nothing
2	nothing	nothing	deassert	Set B
3	toggle	toggle	nothing	nothing
4	deassert	Set B	assert	Set A
5	deassert	Set B	nothing	nothing
6	nothing	nothing	assert	Set A
7	nothing	nothing	toggle	toggle

Type	Numeric
Value	n
Range
Order In Interpretation	19
Default Value	0

-sb

Bank to use for the select mask

Type	Enum
Value	epc/tid/usr
Range	epc/tid/usr
Order In Interpretation	13
Default Value	epc

-sd

Select mask data in 2 character ASCII Hex pairs padded to ensure full bytes

Type	HEX
Value	xx..zz
Range	Integer number of HEX bytes
Order In Interpretation	16
Default Value

-sl

Length in bits of the select mask, where xx is a 2 character ASCII Hex value

Type	HEX
Value	xx
Range	2 Hex digits
Order In Interpretation	15
Default Value	00

-so

Number of bits from the start of the block to the start of the select mask, where xxxx is a 4 character ASCII Hex value

Type	HEX
Value	xxxx
Range	4 Hex digits
Order In Interpretation	14
Default Value	0000

-st

Select target

Type	Enum
Value	s0/s1/s2/s3/sl
Range	s0/s1/s2/s3/sl
Order In Interpretation	20
Default Value	s1

-tf

Impinj tag focus extension. Only effective if qs=s1, qt=a and if supported by the transponder.

Type	Enum
Value	on/off
Range	on/off
Order In Interpretation	27
Default Value	off

-x

Reset the parameters to defaults

Type	Switch
Value
Range
Order In Interpretation	1

Parameter Interpretation Order

-x, -al, -c, -e, -r, -ic, -ip, -ie, -dr, -dt, -fs, -ix, -sb,-so, -sl, -sd, -o, -io, -sa, -st, -qa, -ql, -qs, -qt, -qv, -fi, -tf, -p, -n

Parameter Defaults

-al on, -c off, -dr off, -dt off, -e off, -fi off, -fs off, -ic off, -ip off, -ie on, -io on, -ix off, -o 29, -qa dyn, -ql all, -qs s1, -qt a, -qv 4, -r off, -sa 0, -sb epc, -sd, -sl 00, -so 0000, -st s1, -tf off

Response Headers

CF CR CS DT EP ER IX ME OK PC PH PR RI TD

Examples

Command	Response	Action
.iv -p -n	CS: .iv -p -n PR: -al on -c off -dt off -e off -fi off –fs off -ic off -ip off -ie on -io on -ix off -n -o 29 -p -qa dyn -ql all -qs s1 -qt a -qv 4 -r off -sa 0 -sb epc -sd -sl 00 -so 0000 -st s1 -tf off -x OK:	none
.iv	CS: .iv EP: 310833B2DDD906C000001234 EP: 341486E37C00000000004255 EP: 341486E37C00000000004254 OK:	3 transponders read
.iv -dt on -e on	CS: .iv -dt on -e on DT: 2019-01-26T19:00:52 EP: 341486E37C00000000004254 PC: 3000 EP: 341486E37C00000000004255 PC: 3000 EP: 310833B2DDD906C000001234 PC: 3000 OK:	3 transponders read