17 Item information
- Request
- 17
- Response
- 18
- Set
- core
- Position in BX
- 10
With this command a device asks what it needs to know about an item before doing anything with it: what it is called, where it belongs, whether it is charged out, whether it may be handled at a unit at all. Nothing is booked.
A return unit asks this to recognise before check-in whether an item belongs in a sort bin or on its way to another branch. A self-checkout unit asks it to refuse reference stock before the patron packs it away.
Request 17#
17<timestamp><AO...><AB...><AC...><XK...>
| Field | Length | Required | Content |
|---|---|---|---|
| timestamp | 18 | yes | date and time on the device |
| Identifier | Required | Content |
|---|---|---|
AO |
yes | institution identifier |
AB |
yes | item identifier |
AC |
no | terminal password |
XK |
no | type of item identifier: BAR, ACC or UID |
Type of item identifier#
As with the patron card, an item can be named in three ways:
| Value | Content of AB |
|---|---|
BAR |
barcode number as per the barcode specification |
ACC |
accession number as held by the library system |
UID |
serial number of the RFID transponder in the item |
If XK is missing, the setting configured in the library system applies. The
information matters especially with RFID: A device reads both there – the printed
barcode number from the label and the UID of the transponder – and only the
device knows which of the two it is currently sending.
Response 18#
18<circulation status><security marker><fee type><timestamp><AB...><AJ...>
<AH...><AQ...><CK...><CH...><AF...><AG...><XZ...>
| Field | Length | Required | Content |
|---|---|---|---|
| circulation status | 2 | yes | state of the item, see below |
| security marker | 2 | yes | type of security, 00 unknown |
| fee type | 2 | yes | type of any fee incurred, 01 other |
| timestamp | 18 | yes | date and time on the library system |
| Identifier | Required | Content |
|---|---|---|
AB |
yes | item identifier from the request |
AJ |
yes | short title, optionally preceded by the author |
AH |
no | due date if the item is charged out |
AQ |
no | location the item belongs to |
CK |
no | media type |
CH |
no | item properties |
AF |
no | message for the screen |
AG |
no | message for the receipt |
XZ |
no | transaction number of the item |
The circulation status#
| Value | Meaning |
|---|---|
01 |
other, state not further determined |
02 |
on order |
03 |
available |
04 |
charged |
05 |
charged, not to be recalled until earliest recall date |
06 |
in process |
07 |
recalled |
08 |
waiting on hold shelf |
09 |
waiting to be re-shelved |
10 |
in transit between branches |
11 |
claimed returned |
12 |
lost |
13 |
missing |
14 |
not lendable at all |
15 |
not lendable at a unit, only at the desk |
Values 01 to 13 come from SIP2. The last two are extensions of this profile,
and for a practical reason: SIP2 has no value for "must not be issued in
self-service". Without it, reference stock would have to be reported as
03 available and the checkout refused only in the next step – by which time the
patron would already have packed the book.
| Value | What the device does |
|---|---|
14 |
refuse the item, show "reference stock" |
15 |
refuse the item, refer to the circulation desk |
Example#
1720260728 143012AOBVS|AB1140360000123|XKBAR|AY3AZF37B<CR>
1803000120260728 143012AB1140360000123|AJEnde, Michael: Momo|AH25.08.2026|AQCentral library|CK001|CH|AF|AG|XZ12345|AY3AZDE11<CR>
The item is available (03), is called "Momo" and belongs to the central library.
Whether the author travels along in AJ is a setting of the library system. If
it is set, the author precedes the short title, separated by : – SIP2 has no
field of its own for it. The colon separates unambiguously, because a subtitle
is not part of the short title. Without the setting, and where no author is
recorded, the field holds the title alone.