Field overview

Anyone reading a trace needs no command description but the meaning of an identifier. This overview holds every identifier occurring in this profile – and only those.

The column "Commands" names the messages in which the field appears.

Fields from SIP2#

Identifier	Content	Commands
`AA`	patron identifier	01, 11, 12, 15, 16, 23, 24, 25, 26, 29, 30, 35, 36, 37, 38, 63, 64, 65
`AB`	item identifier	09, 10, 11, 12, 15, 16, 17, 18, 19, 20, 29, 30
`AC`	terminal password	01, 09, 11, 15, 17, 19, 23, 25, 29, 35, 37, 63, 65
`AD`	patron password	11, 15, 23, 25, 29, 35, 37, 63, 65
`AE`	personal name	24, 26, 64
`AF`	message for the screen	all responses
`AG`	message for the receipt	all responses
`AH`	due date	12, 18, 30
`AJ`	short title of the item	10, 12, 15, 16, 18, 20, 29, 30
`AL`	reason for a block	01
`AM`	name of the library	98
`AN`	terminal location as held by the system	98
`AO`	institution identifier	almost every message
`AP`	location where the item was returned	09, 10
`AQ`	location the item belongs to	10, 12, 18
`AS`	an available hold item	64
`AT`	an overdue item	64
`AU`	a charged item	64
`AV`	a fine item	64
`AY`	sequence number	all messages except 96, 97
`AZ`	checksum	all messages
`BE`	e-mail address of the patron	64
`BH`	currency	10, 12, 24, 30, 64
`BK`	transaction number of a payment	37, 38
`BL`	`Y` the card is known	24, 26, 64
`BM`	a renewed item	66
`BN`	an item not renewed	66
`BO`	`Y` fee acknowledged by the patron	11, 15, 29, 65
`BR`	queue position	16
`BS`	pickup location of a hold	15, 16
`BT`	fee type	30
`BU`	a recall item	64
`BV`	monetary amount	10, 12, 24, 30, 37, 64
`BW`	expiration date	15, 16, 64
`BX`	supported commands	98
`BY`	hold type	15
`BZ`	hold items limit	64
`CA`	overdue items limit	64
`CB`	charged items limit	64
`CD`	a hold not yet available	64
`CG`	identifier of an individual fee	37
`CH`	item properties	11, 18, 19, 20, 29, 30
`CI`	security inhibit	30
`CK`	media type	10, 12, 18
`CL`	sort bin	10
`CN`	login user id of the device	93
`CO`	login password of the device	93
`CP`	location code of the device	93
`CQ`	`Y` password or PIN is correct	24, 26, 64
`CY`	identifier of the patron holding the item	10

Fields of this profile#

Every identifier begins with X. They are described in detail under extensions.

Identifier	Content	Commands
`XD`	date of the next item due	64
`XE`	character set: `w` Windows-1252, `u` UTF-8	99, 98
`XF`	functions the library system offers	all responses
`XH`	number of items charged today	64
`XK`	type of item identifier: `BAR`, `ACC`, `UID`	09, 11, 17
`XL`	type of patron identifier: `BAR`, `ACC`, `UID`	11, 23, 63
`XM`	operating mode: `NORMAL`, `MAINT`	98
`XP`	PIN of the patron	23, 63
`XS`	identification and version of the library system	all responses
`XU`	minimum version a device must have	all responses
`XZ`	transaction number	12, 18

Easily confused#

Four pairs look alike and mean different things:

`AC` and `AD`	`AC` is the password of the device, `AD` that of the patron
`AP` and `AQ`	`AP` is where the item was returned, `AQ` where it belongs
`AA` and `AB`	`AA` is the patron, `AB` the item
`AF` and `AG`	`AF` goes to the screen, `AG` to the receipt

AF and AG usually carry the same text. Sending both is still worthwhile, because they are allowed to differ: There is room for a whole sentence on the screen, but not on a 40-character receipt.

This page was translated automatically from the German original. If anything reads oddly or looks wrong, please let us know — the German edition prevails.