BIND area format and DSECT

The ISTDBIND DSECT can be used to set up or examine a set of session parameters. The situations in which the DSECT might be useful are listed here. For further information about the individual macroinstructions, see Conventions and descriptions of VTAM macroinstructions. For a general discussion of DSECTs, see the introductory section of Control block formats and DSECTs. The format maps and DSECT descriptions for the BIND area are shown in Figure 1 through Table 7.

The term “fixed-length portion of BIND” refers to bytes 0–25 of a BIND area (only fixed-length fields). See Figure 1 for an example of the fixed-length fields of a BIND area. In general, the fields in BIND after the fixed-length portion are variable-length fields, so they cannot be examined by a DSECT. However, in some instances, the primary logical unit name field is padded by VTAM® to be a fixed-length (8-byte) field. In this case, the full ISTDBIND DSECT can be used.

The ISTDBIND DSECT can be used:

To examine the session parameters obtained by INQUIRE OPTCD=SESSPARM. The full ISTDBIND DSECT can be used.
To set up the session parameters (in the area pointed to by the NIB's BNDAREA field) sent by OPNDST in a BIND request, or sent by OPNSEC in a negotiable BIND response. The full ISTDBIND DSECT can be used.
To examine the session parameters pointed to by the fourth word of the SCIP exit routine parameter list when a BIND is received. The full ISTDBIND DSECT can be used.
To examine the BIND image portion of a CINIT request unit received in a LOGON exit routine. Only the fixed-length portion (bytes 0–25) of the BIND area can be examined with ISTDBIND. Note that this portion of CINIT can also be accessed by INQUIRE OPTCD=SESSPARM.
To examine bytes 1–26 of a BIND request received in an SCIP exit routine. Byte 0 of BIND is the BIND request code and is not included in ISTDBIND. The BIND request is pointed to by the AREA field of the SCIP exit routine read-only RPL.
To examine bytes 1–26 of a negotiable BIND response received in the AAREA field specified by OPNDST. Byte 0 of AAREA is the BIND request code and is not included in ISTDBIND.

Figure 1. Format of BNDAREA (ISTDBIND).

The diagram shows the format of BIND area, which contains the field information between displacements 0 and 36.

For BINPSCHR, see Table 4 Table 5, Table 6, and Table 7.

Note: The double outlined section is the fixed-length portion of BIND. The names in brackets are the operands of the MODEENT macro used to build the corresponding fields in a logon mode table entry (refer to the z/OS Communications Server: SNA Resource Definition Reference for information on the logon mode table.) The names in parentheses are the ISTDBIND DSECT labels for the field.

Although the PLU name can be 1-17 bytes in the BIND RU, the ISTDBIND DSECT requires it to be exactly 8 bytes. This causes the offset of the user data field to vary in the BIND RU but not in the BIND DSECT. The area provided by VTAM to the SCIP exit will have an 8 in the PLU name length field and the name may be padded with blanks or truncated, if necessary. VTAM requires the bind area to be in this format when it is supplied by the application on an OPNDST or OPNSEC macroinstruction. Also note that in the case of a BIND error, the offset contained in sense code 0835nnnn is adjusted, if necessary, when given to the application to parse the BIND DSECT.

Table 1. Session parameter fields: How they are made available and who can change them
ISTDBIND offset	ISTDBIND field description	Information available in SCIP exit session parameters (See note 10)	Information available to INQUIRE OPTCD= SESSPARM (See note 3)	Application program can specify in OPNDST or OPNSEC (in NIB BNDAREA)	VTAM sets at OPNDST or OPNSEC (NIB BNDAREA information superseded)
–	BIND RU code (X'31')²	No	No	No	Yes
0	BIND format and type	Yes	Yes	No⁸	Yes⁸
1	FM profile	Yes	Yes	Yes	No
2	TS profile	Yes	Yes	Yes	No¹²
3	PLU protocols	Yes	Yes	Yes	No
4	SLU protocols	Yes	Yes	Yes	No
5–6	Common protocols	Yes	Yes	Yes	No¹⁶
7	SLU send pacing count	Yes	Yes	No¹⁴	Yes
8	SLU receive pacing count	Yes	Yes	No for OPNDST.¹⁴ Yes for OPNSEC.¹³	Yes for OPNDST. No for OPNSEC.¹²
9	SLU maximum send RU size-mantissa/ exponent	Yes	Yes	Yes¹	No
10	PLU maximum send RU size-mantissa/ exponent	Yes	Yes	Yes¹	No
11	PLU send pacing count	Yes	Yes	No¹⁴	Yes
12	PLU receive pacing count	Yes	Yes	Yes for OPNDST. No for OPNSEC.¹⁴	No for OPNDST.⁴ Yes for OPNSEC.
13–24	LU presentation services	Yes	Yes	Yes	No
25	Cryptographic control	Yes⁶	Yes⁶	Yes⁹	Yes⁷¹²
26	PLU name length	Yes¹⁵	No	No	Yes
27–34	PLU name	Yes¹⁵	No	No	Yes
35	User data length⁵	Yes	Yes	Yes	No
36–n¹¹	User data⁵	Yes	Yes	Yes	No
Note: The RU size specified should be no larger than the size specified in the received CINIT or BIND RU. The BIND request unit code (X'31') is not included in the ISTDBIND DSECT. Certain information is available to an INQUIRE OPTCD=SESSPARM for a received CINIT RU which is not available for other types of INQUIREs for session parameters. This information is the BIND type and user data. The PLU receive pacing count is not overlaid unless the application program sets BINBPACE to zero in BNDAREA (meaning the application program wants the CINIT value to be used), or unless the value in CINIT for this field is 0 (meaning the SLU to PLU direction is not to be paced). The value specified should be no larger than in the associated received CINIT RU. The user data and user-data length have different meanings depending on when they are examined: For INQUIRE OPTCD=SESSPARM for a received CINIT RU, they represent the user-data field specified in the original session-initiation request. For other types of INQUIRE, the length field is zero and there is no user data. For OPNDST ACCEPT or ACQUIRE specifying a BNDAREA, they specify the user-data field to be sent in a BIND to the secondary logical unit. If BNDAREA is not specified, no user data is sent to the logical unit as part of BIND. For an SCIP exit routine scheduled by the receipt of a BIND request, they specify the data received in that BIND request. For OPNSEC sending a negotiable BIND response in a BNDAREA, you must specify the user data-length field (and user-data field if the length is not zero) when returning the BIND response to the PLU. If BNDAREA is not specified, no user data is sent to the logical unit. Note that the cryptographic length field in this byte is always set to 0. Some of the variable-length cryptographic information is available through use of INQUIRE OPTCD=SESSKEY. VTAM changes the session level cryptography part of this field (if possible) if a higher level of cryptography is required for session establishment. See NIB PROC option for NEGBIND to see how the application program can set the type field indirectly. The type field of BNDAREA is ignored by VTAM; the format field is tested for 0 by VTAM. See NIB ENCR parameter to see how the application program can set the session level cryptography part of this field indirectly; that part of the cryptographic-control field in BNDAREA is ignored by VTAM. The private-level-cryptography setting can be changed by the application program in BNDAREA and is not subsequently changed by VTAM. These are the session parameters pointed to by word 4 of the SCIP exit parameter list, not those in the BIND RU pointed to by the SCIP exit read-only RPL. The total BIND RU length (request or response) can be no larger than 256 bytes. This field is checked for valid values by VTAM. The macroinstruction fails if a value that is not valid is found. The application program can decrease this value, but cannot set it to 0 unless the field received in BIND is 0. VTAM determines the pacing value from either the definition statement for the LU or the logon mode table entry. Although the PLU name can be 1-17 bytes in the BIND RU, the ISTDBIND DSECT requires it to be exactly 8 bytes. This causes the offset of the user data field to vary in the BIND RU but not in the BIND DSECT. The area provided by VTAM to the SCIP exit will have an 8 in the PLU name length field and the name may be padded with blanks or truncated, if necessary. VTAM requires the bind area to be in this format when it is supplied by the application on an OPNDST or OPNSEC macroinstruction. VTAM sets byte 6 bit 6 (Control vectors included indicator) as needed and includes any control vectors appropriate for the session.

Table 2. BNDAREA DSECT (ISTDBIND)
Field	DSECT DS or ORG label	DSECT EQU label	Value	Meaning	Dec offset	Hex offset
BIND Format and Type	BINFMTY	BINFMT	X'F0'	BIND format	0	0
		BINFMT0	X'00'	Format 0	0	0
		BINTYPE	X'0F'	BIND type	0	0
		BINNEGO	X'00'	Negotiable	0	0
		BINONEGO	X'01'	Non-negotiable	0	0
		BINCOLD	X'01'	Non-negotiable	0	0
FM Profile	BINFM	BINFM19	X'13'	FM Profile 19	1	1
TS Profile	BINTS	BINTS2	X'02'	Sequence numbers and no reset state	2	2
		BINTS3	X'03'	Sequence numbers and reset state	2	2
		BINTS4	X'04'	Sequence numbers and reset state (STSN and RQR)	2	2
		BINTS7	X'07'	Sequence numbers and no reset state	2	2
Primary LU Protocol	BINPRIP	BINPCHN	X'80'	Bit on = multiple request chains Bit off = only single request chain used	3	3
		BINPMCH	X'40'	Bit on = multiple outstanding chains; delayed request mode Bit off = single outstanding chains only; immediate request mode	3	3
		BINPCHNR	X'30'	Primary chain response protocol	3	3
		BINNYRSP	X'30'	Either definite or exception response	3	3
		BINDFRSP	X'20'	Definite response	3	3
		BINEXRSP	X'10'	Exception response	3	3
		BINNORSP	X'00'	No response	3	3
		BINNORSP	X'00'	No response	3	3
			X'0C'	Reserved	3	3
		BINPCMP	X'02'	Bit on = compression can be used Bit off = compression must not be used	3	3
		BINPSEB	X'01'	Bit on = primary can send end bracket indicator Bit off = primary will not send end bracket indicator	3	3
Secondary LU Protocol	BINSECP	BINSCHN	X'80'	Bit on = multiple request chains Bit off = only single request chains used	4	4
		BINSMCH	X'40'	Bit on = multiple outstanding chains; delayed request mode Bit off= single outstanding chains only; immediate request mode	4	4
		BINSCHNR	X'30'	Secondary chain response protocol	4	4
		BINNYRSP	X'30'	Either definite or exception responses	4	4
		BINDFRSP	X'20'	Definite response	4	4
		BINEXRSP	X'10'	Exception response	4	4
			X'0C'	Reserved	4	4
		BINSCMP	X'02'	Bit on = compression can be used Bit off = compression must not be used	4	4
		BINSSEB	X'01'	Bit on = secondary can send end bracket indicator Bit off = secondary will not send end bracket indicator	4	4
Common LU Protocol	BINCMNP	BINWBREQ	X'80'	Whole BIUs-required indicator Bit on = sending LU nodes does not support receipt of segments on this session Bit off = sending LU nodes supports receipt of segments on this session	5	5
		BINFMHD	X'40'	Bit on = function management headers can be used Bit off = function management headers must not be used	5	5
		BINBRAK	X'20'	Bit on = brackets are used and the reset state is between brackets Bit off = either brackets are not used or brackets are used and the reset state is in brackets	5	5
		BINBKTR	X'10'	Bit on = conditional bracket termination (termination rule one) Bit off = unconditional bracket termination (termination rule two)	5	5
		BINALT	X'08'	Bit on = alternate code can be used Bit off = alternate code must not be used	5	5
			X'06'	Reserved	5	5
		BINQUE	X'01'	BIND queueing indicator Bit on = BIND sender allows the BIND receiver to queue the BIND for an indefinite period Bit off = BIND cannot be held/queued	5	5
	BINCMNP2	BINFMTRM	X'C0'	Send/Receive mode as follows:	6	6
		BINHDXFF	X'80'	Half-duplex flip-flop mode	6	6
		BINHDXC	X'40'	Half-duplex contention mode	6	6
		BINFLDPX	X'00'	Full-duplex mode	6	6
		BINRCVR	X'20'	Bit on = symmetric responsibility for recovery Bit off = contention loser is responsible for recovery	6	6
		BINBKFS	X'10'	Bit on = primary is first speaker in bracket mode and contention winner; secondary is brackets bidder and contention loser Bit off = secondary is first speaker in bracket mode and contention winner; primary is brackets bidder and contention loser	6	6
		BINASCC	X'0C'	00 = alternate code selection is ASCII 7 01 = alternate code selection is ASCII 8	6	6
		BINCTLV	X'02'	Control vectors included after SLU name.	6	6
		BINCONR	X'01'	Bit on = for half-duplex flip-flop mode, primary sends first when the data traffic reset state is left Bit off = for half-duplex flip-flop mode, secondary sends first when the data traffic reset is left	6	6
Secondary LU Send Pacing Count	BINAPACE	:c	:c	Secondary logical unit send pacing. See Table 1 for availability.	7	7
		BINSP2ST	X'80'	Number of pacing stages from the secondary logical unit to the primary logical unit: Bit on = one stage Bit off = two stages	7	7
			X'40'	Reserved	7	7
		BINAPACM	X'3F'	Secondary logical unit send pacing count	7	7
Secondary LU Receive Pacing Count	BINRPACE			Secondary logical unit receive pacing. See Table 1 for availability.	8	8
		BINASPI	X'80'	Adaptive pacing	8	8
			X'40'	Reserved	8	8
		BINRPACM	X'3F'	Secondary logical unit receive pacing count	8	8
Request Unit Sizes	BINSRUSZ			Maximum size of the request unit that can be sent by the secondary logical unit	9	9
		BINSRUSS	X'80'	RU size is specified	9	9
		BINRU256	X'85'	256-byte request unit (8 x 2⁵)	9	9
		BINRU1K	X'87'	1024-byte request unit (8 x 2⁷)	9	9
		BINRUSZM	X'F0'	Mantissa (M) mask	9	9
		BINRUSZE	X'0F'	Exponent (E) mask Size = M x 2E	9	9
	BINPRUSZ			Maximum size of the request unit that can be sent by the primary logical unit	10	A
		BINPRUSS	X'80'	RU size is specified	9	9
		BINRU256	X'85'	256-byte request unit (8 x 2⁵)	10	A
		BINRU1K	X'87'	1024-byte request unit (8 x 2⁷)	10	A
		BINRUSZM	X'F0'	Mantissa (M) mask	10	A
		BINRUSZE	X'0F'	Exponent (E) mask Size = M x 2E	10	A
Primary LU Send Pacing Count	BINSPACE			Primary logical unit send placing. See Table 1 for availability.	11	B
		BINPS1ST	X'80'	Number of pacing stages from the primary logical unit to the secondary logical unit: Bit on = one stage Bit off = two stages	11	B
			X'40'	Reserved	11	B
		BINBPACM	X'3F'	Primary logical unit send pacing count	11	B
Primary LU Receive Pacing Count	BINBPACE			Primary logical unit receive pacing. See Table 1 for availability.	12	C
			X'C0'	Reserved	12	C
		BINBPACM	X'3F'	Primary logical unit receive pacing count. PS usage field format. 0 = Basic format 1 = Reserved	12	C
Logical Unit Presentation Services Profile	BINLUP	BINPSFMT	X'80'	PS usage field format	13	D
		BINLUTYP	X'7F'	LU type	13	D
		BINLUP0C	X'00'	Logical unit profile 0	13	D
		BINLUP1C	X'01'	Logical unit profile 1	13	D
		BINLUP2C	X'02'	Logical unit profile 2	13	D
		BINLUP3C	X'03'	Logical unit profile 3	13	D
		BINLUP4C	X'04'	Logical unit profile 4	13	D
		BINLUP6C	X'06'	Logical unit profile 6	13	D
Logical Unit Presentation Services Usage	BINPSCHR			Logical unit presentation services. See Table 4, Table 5, Table 6, and Table 7.	14	E
Crypto- graphic Control	BINCRCTL			Cryptographic control byte	25	19
		BINNOCRY	X'00'	No cryptography	25	19
		BINCRYCA	X'09'	Capable of cryptography	25	19
		BINCRYSL	X'19'	Selective cryptography	25	19
		BINCRYRQ	X'39'	Required cryptography	25	19
		BINCEUMP	X'C0'	Private cryptography flags	25	19
		BINCEUPS	X'80'	System key, private protocol	25	19
		BINCEUPP	X'40'	Private key, private protocol	25	19
		BINCEUNP	X'00'	No private protocol	25	19
		BINCSESS	X'30'	Session level cryptography flags	25	19
		BINCSENP	X'00'	No cryptography	25	19
		BINCSESP	X'10'	Selective cryptography	25	19
		BINCSESR	X'30'	Required cryptography	25	19
		BINCLEN	X'0F'	Cryptographic field length mask	25	19
Primary LU Name Length	BINPRIML			Primary logical unit name length	26	1A
Primary LU Name	BINPRIMN			Primary logical unit name	27	1B
User-Data Length	BINUSEL			User-data length	35	23
		BINUSERD	X'00'	User-data length default	35	23
User Data	BINUSE			User data	36	24
Note: Refer to the z/OS Communications Server: SNA Programmer's LU 6.2 Guide for more information on the BNDAREA DSECT (ISTDBIND).

Table 3. BINPSCHR field of BNDAREA DSECT for logical unit profile 0
Field	DSECT DS or ORG label	DSECT EQU label	Value	Meaning	Dec offset	Hex offset
	BINDFLAG	BINSEDS	X'80'	3270 extended data stream	14	E
			X'7F'	Reserved	14	E
				Reserved	15	F
				Reserved	16	10
				Reserved	17	11
				Reserved	18	12
	BINSCRSZ			Presentation space size (next 4 bytes)	19	13
	BINSPRIR			Default number of rows	19	13
	BINSPRIC			Default number of columns	20	14
	BINSALTR			Alternate number of rows	21	15
		BINSALTC		Alternate number of columns	22	16
Presentation Space Size	BINPRESZ			Presentation space size	23	17
		BINPSZ0	X'00'	Undefined row and column format	23	17
		BINPSZ1	X'01'	12 rows 40 columns format	23	17
		BINPSZ2	X'02'	24 rows 80 columns format	23	17
		BINPSZ3	X'03'	24 rows 80 columns default. The alternate presentation space is specified in the Query Reply structured field.	23	17
		BINPSFX	X'7E'	Presentation space is a fixed size as defined by default values	23	17
		BINPSZRC	X'7F'	Presentation space has both default and alternate sizes as defined in the DEFAULT and ALTERNATE fields	23	17
Device Type			X'C0'	Device Type: 00 = unspecified device type 01 = printer device 10 = display device 11 = reserved	24	18
			X'3C'	Reserved	24	18
		BINCMP1 BINCMP2	X'02' X'01'	BIND Request: 00 = no compression 01 = compression bid 10 = reserved 11 = compression required BIND Response: 00 = reserved 01 = reserved 10 = compression used 11 = reserved	24	18

Table 4. BINPSCHR field of BNDAREA DSECT for logical unit profile 1
Field	DSECT DS or ORG label	DSECT EQU label	Value	Meaning	Dec offset	Hex offset
FM Header Subset and Data Stream Profile	BINLUP1	BINFMHS1	X'F0'	Function management header subset	14	E
		BINFMS3C	X'30'	FM header subset 3 used–Data management subset	14	E
		BINFMS2C	X'20'	FM header subset 2 used–Type 1 headers	14	E
		BINFMS1C	X'10'	FM header subset 1 used–Type 1 headers with restrictions	14	E
		BINFMS0C	X'00'	FM header subset 0 used–No function management headers allowed	14	E
		BINDSP1	X'0F'	Data stream profile	14	E
		BINDSP1C	X'01'	Basic controls, cards can span RUs (data stream subset 1)	14	E
		BINDSP0C	X'00'	Basic controls (data stream subset 0)	14	E
Primary Logical Unit FM Header Subset Flags	BINPFMB1	BINDESTS	X'80'	Bit on = three destinations might be outstanding Bit off = two destinations might be outstanding	15	F
		BINCMPCT	X'40'	Bit on = can send compaction table/can be queried for compaction tables Bit off = will not send compaction table/will not be queried for compaction tables	15	F
		BINPDIR	X'20'	Bit on = PDIR can be sent Bit off = PDIR will not be sent	15	F
			X'1F'	Reserved	15	F
		BINKDDSI	X'10'	Bit on = keyed direct data sets can be sent Bit off = keyed direct data sets will not be sent	15	F
		BINSDSI	X'08'	Bit on = sequential data sets can be sent Bit off = sequential data sets will not be sent	15	F
		BINSAI	X'04'	Bit on = sequential access to addressed direct data sets can be sent Bit off = sequential access to addressed direct data sets will not be sent	15	F
		BINSIDS	X'02'	Bit on = series IDs (with status in reply) are supported Bit off = series IDs are not supported	15	F
		BINARRR	X'01'	Bit on = Add Replicate, Replace Replicate are supported Bit off = Add Replicate, Replace Replicate are not supported	15	F
		BINPFMB2	X'80'	Reserved	16	10
		BINQDSI	X'40'	Bit on = query for destination selection is supported Bit off = query for destination selection is not supported	16	10
		BINCSDS	X'20'	Bit on = CREATE, SCRATCH, and SCRATCH ALL are permitted Bit off = CREATE, SCRATCH, and SCRATCH ALL are not permitted	16	10
		BINXFPD	X'10'	Bit on = Execute Program Offline is permitted Bit off = Execute Program Offline is not permitted	16	10
			X'0F'	Reserved	17	10
Primary Logical Unit Data Stream Flags	BINPDSB1	BININTR	X'80'	Bit on = full base set data stream (BS, CR, LF, ENP, INP HT, VT) can be sent Bit off = full base set data stream will not be sent	17	11
		BINHFDS	X'40'	Bit on = horizontal format data stream (SHF) can be sent Bit off = horizontal format data stream will not be sent	17	11
		BINVTDS	X'20'	Bit on = vertical format data stream (SVF) can be sent Bit off = vertical format data stream will not be sent	17	11
		BINVSDS	X'10'	Bit on = vertical channel (includes vertical format and vertical channel select (VCS) with parameters) can be sent BIN off = vertical channel will not be sent	17	11
		BINSLD	X'08'	Bit on = SLD can be sent Bit off = SLD will not be sent	17	11
			X'06'	Reserved	17	11
		BINTRNDS	X'01'	Bit on = transparency data stream (TRN, IRS) can be sent Bit off = transparency data stream will not be sent	17	11
	BINPDSB2	BINUAINT	X'80'	Bit on = secondary logical unit will initiate unattended Bit off = secondary logical unit will initiate attended	18	12
		BINUAALT	X'40'	Bit on = in session, the secondary logical unit will alternate between attended and unattended Bit off = in session, secondary logical unit will not alternate between attended and unattended	18	12
			X'3F'	Reserved	18	12
Primary Logical Unit Media Flags	BINPMED1	BINDOCMT	X'80'	Bit on = document format can be sent Bit off = document format will not be sent	19	13
		BINCARD	X'40'	Bit on = card format can be sent Bit off = card format will not be sent	19	13
		BINXCHNG	X'20'	Bit on = exchange media can be sent Bit off = exchange media will not be sent	19	13
		BINDISK	X'10'	Bit on = disk data management can be sent Bit off = disk data management will not be sent	19	13
		BINXCDF	X'08'	Bit on = extended card format can be sent Bit off = extended card format will not be sent	19	13
		BINXDOCF	X'04'	Bit on = extended document format can be sent Bit off = extended document format will not be sent	19	13
		BINCDEDS	X'02'	Bit on = secondary logical unit must send Change Direction every EDS Bit off = secondary logical unit can send Change Direction every EDS	19	13
			X'01'	Reserved	19	13
Secondary Logical Unit FM Header Subset Flags	BINSFMB1	BINDESTS	X'80'	Bit on = three destinations might be outstanding Bit off = two destinations might be outstanding	20	14
		BINCMPCT	X'40'	Bit on = can send compaction table/can be queried for compaction tables Bit off = will not send compaction table/will not be queried for compaction tables	20	14
		BINPDIR	X'20'	Bit on = PDIR can be sent Bit off = PDIR will not be sent	20	14
		BINKDDSI	X'10'	Bit on = keyed direct data sets can be sent Bit off = keyed direct data sets will not be sent	20	14
		BINSDSI	X'08'	Bit on = sequential data sets can be sent Bit off = sequential data sets will not be sent	20	14
		BINSAI	X'04'	Bit on = sequential access to addressed direct data set can be sent Bit off = these data sets will not be sent	20	14
		BINSIDS	X'02'	Bit on = series IDs (with status in reply) are supported Bit off = series IDs are not supported	20	14
		BINARRR	X'01'	Bit on = Add Replicate, Replace Replicate are supported Bit off = these are not supported	20	14
	BINSFMB2		X'80'	Reserved	21	15
		BINQDSI	X'40'	Bit on = query for destination selection is supported Bit off = query for destination selection is not supported	21	15
		BINCSDS	X'20'	Bit on = CREATE, SCRATCH, and SCRATCH ALL are permitted Bit off = these are not permitted	21	15
		BINXFPD	X'10'	Bit on = Execute Program Offline is permitted Bit off = Execute Program Offline is not permitted	21	15
			X'0F'	Reserved	21	15
Secondary Logical Unit Data Stream Flags	BINSDSB1	BININTR	X'80'	Bit on = full base set data stream (BS, CR, LF, ENP, INP, HT, VT) can be sent Bit off = full base set data stream will not be sent	22	16
		BINHFDS	X'40'	Bit on = horizontal format data stream (SHF) can be sent Bit off = horizontal format data stream will not be sent	22	16
		BINVTDS	X'20'	Bit on = vertical format data stream (SVF) can be sent Bit off = vertical format data stream will not be sent	22	16
		BINVSDS	X'10'	Bit on = vertical channel (includes vertical format and vertical channel select (VCS) with parameters) can be sent Bit off = vertical channel will not be sent	22	16
		BINSLD	X'08'	Bit on = SLD can be sent Bit off = SLD will not be sent	22	16
			X'06'	Reserved	22	16
		BINTRNDS	X'01'	Bit on = transparency data stream (TRN, IRS) can be used Bit off = transparency data stream will not be sent	22	16
	BINSDSB2		X	Reserved	23	17
Secondary Logical Unit Media Flags	BINSMED1	BINDOCMT	X'80'	Bit on = document format can be sent Bit off = document format will not be sent	24	18
		BINCARD	X'40'	Bit on = card format can be sent Bit off = card format will not be sent	24	18
		BINXCHNG	X'20'	Bit on = exchange media can be sent Bit off = exchange media will not be sent	24	18
		BINDISK	X'10'	Bit on = disk data management can be sent Bit off = disk data management will not be sent	24	18
		BINXCDF	X'08'	Bit on = extended card format can be sent Bit off = extended card format will not be sent	24	18
		BINXDOCF	X'04'	Bit on = extended document format can be sent Bit off = extended document format will not be sent	24	18
		BINCMP1 BINCMP2	X'02' X'01'	BIND Request: 00 = no compression 01 = compression bid 10 = reserved 11 = compression required BIND Response: 10 = compression used xx = reserved	24	18

Table 5. BINPSCHR field of BNDAREA DSECT for logical unit profile 2
Field	DSECT DS or ORG label	DSECT EQU label	Value	Meaning	Dec offset	Hex offset
	BINDFLAG	BINSEDS	X'80'	3270 extended data stream	14	E
			X'7F'	Reserved	14	E
				Reserved	15	F
				Reserved	16	10
				Reserved	17	11
				Reserved	18	12
	BINSCRSZ			Presentation space size (next 4 bytes)	19	13
	BINSPRIR			Default number of rows	19	13
	BINSPRIC			Default number of columns	20	14
	BINSALTR			Alternate number of rows	21	15
	BINSALTC			Alternate number of columns	22	16
Presentation Space Size	BINPRESZ			Presentation space size	23	17
		BINPSZO	X'00'	Undefined row and column format	23	17
		BINPSZ1	X'01'	12 rows 40 columns format	23	17
		BINPSZ2	X'02'	24 rows 80 columns format	23	17
		BINPSZ3	X'03'	24 rows 80 columns default to undefined alternate. Do not write structural field query to identify alternate.	23	17
		BINPSFX	X'7E'	Presentation space is a fixed size as defined by default values	23	17
		BINPSZRC	X'7F'	Presentation space has both default and alternate sizes as defined in the DEFAULT and ALTERNATE fields	23	17
			X'FC'	Reserved	24	18
		BINCMP1 BINCMP2	X'02' X'01'	BIND Request: 00 = no compression 01 = compression bid 10 = reserved 11 = compression required BIND Response: 10 = compression used xx = reserved	24	18

Table 6. BINPSCHR field of BNDAREA DSECT for logical unit profile 3
DSECT DS or ORG label	DSECT EQU label	Value	Meaning	Dec offset	Hex offset
BINDFLAG	BINSEDS	X'80'	3270 extended data stream	14	E
		X'7F'	Reserved	14	E
			Reserved	15	F
			Reserved	16	10
			Reserved	17	11
			Reserved	18	12
BINBFRSZ			Presentation space size (next 4 bytes)	19	13
BINBFRDR			Default number of rows	19	13
BINBFRDC			Default number of columns	20	14
BINBFRAR			Alternate number of rows	21	15
BINBFRAC			Alternate number of columns	22	16
BINBDESC			Code for presentation size: 0 maximum 1 480 characters 2 1920 characters X'7E' fixed size as defined by the default values X'7F' variable size as defined by the default and alternate values	23	17
		X'FC'	Reserved	24	18
	BINCMP1 BINCMP2	X'02' X'01'	BIND Request: 00 = no compression 01 = compression bid 10 = reserved 11 = compression required BIND Response: 10 = compression used xx = reserved	24	18

Table 7. BINPSCHR field of BNDAREA DSECT for logical unit profile 4
DSECT DS or ORG label	DSECT EQU label	Value	Meaning	Dec offset	Hex offset
BINPSNDO			Primary logical unit send capability (next 4 bytes)	14	E
BINPDSPP			Printer data stream profile	14	E
	BINPBDSP	X'80'	Base data stream profile Bit on = supported Bit off = not supported	14	E
	BINPJOB	X'20'	Job SNA character string subset Bit on = supported Bit off = not supported	14	E
	BINWPRAW	X'08'	Word processing raw form Bit on = supported Bit off = not supported	14	E
		X'57'	Reserved	14	E
BINADSPP			Additional data stream profile	15	F
	BINADSCD	X'40'	Bit on = card supported Bit off = card not supported	15	F
		X'5F'	Reserved	15	F
BINCSLP			Console data stream profile	16	10
	BINCBDSP	X'80'	Base data stream profile Bit on = supported Bit off = not supported	16	10
	BINCJOB	X'20'	Job SNA character string subset Bit on = supported Bit off = not supported	16	10
		X'5F'	Reserved	16	10
BINFMHUP			Function management/function management header usage	17	11
	BINDSSTO	X'60'	00 1 level of destination selection suspension stack 01 2 levels of destination selection suspension stack 10 Reserved 11 3 levels of destination selection suspension stack	17	11
	BINKIXS	X'01'	Bit on = secondary logical unit must receive a Change Direction on every End Data Set command Bit off = secondary logical unit need not receive a Change Direction on every End Data Set command	17	11
		X'9E'	Reserved	17	11
BINSSNDO			Secondary logical unit send capability (next 4 bytes)	18	12
BINPDSPS			Printer data stream profile	18	12
	BINPBDSP	X'80'	Base data stream profile Bit on = supported Bit off = not supported	18	12
	BINPJOB	X'20'	Job SNA character string subset Bit on = supported Bit off = not supported	18	12
	BINWPRAW	X'08'	Word processing raw form Bit on = supported Bit off = not supported	18	12
		X'57'	Reserved	18	12
BINADSPS			Additional data stream profile	19	13
	BINADSCD	X'40'	Bit on = card supported Bit off = card not supported	19	13
		X'BF'	Reserved	19	13
BINSCLS			Console data stream profile	20	14
	BINCBDSP	X'80'	Base data stream profile Bit on = supported Bit off = not supported	20	14
	BINCJOB	X'20'	Job SNA character string subset Bit on = supported Bit off = not supported	20	14
		X'5F'	Reserved	20	14
BINFMHUS			Function management/function management header usage	21	15
	BINDSSTO	X'60'	00 1 level of destination selection suspension stack 01 2 levels of destination selection suspension stack 10 Reserved 11 3 levels of destination selection suspension stack	21	15
	BINKIXS	X'01'	Bit on = secondary logical unit must receive a Change Direction on every End Data Set command Bit off = secondary logical unit need not receive a Change Direction on every End Data Set command	21	15
		X'9E'	Reserved	21	15
BINSCO			Code selection	22	16
	BINCSOR	X'F0'	Repertoire	22	16
	BINCSOE	X'80'	EBCDIC	22	16
	BINCSOA1	X'40'	ASCII/ISCII/ITA #5	22	16
		X'30'	Reserved	22	16
	BINCSOC1	X'0C'	00 = code 0 (main code) selection is EBCDIC 01 = code 0 (main code) selection is ASCII/ISCII/ITA #5	22	16
	BINCSOC2	X'03'	00 = code 1 (alternate code) selection is EBCDIC 01 = code 1 (alternate code) selection is ASCII/ISCII/ITA #5	22	16
BINGENCO			General characteristics	23	17
		X'C0'	Reserved	23	17
	BINWSDF	X'20'	Bit on = secondary logical unit must send data first Bit off = primary logical unit can send data first	23	17
		X'10'	Reserved	23	17
	BINIAO	X'08'	Bit on = secondary logical unit will initiate unattended Bit off = secondary logical unit will initiate attended	23	17
	BINAAO	X'04'	Bit on = secondary logical unit can alternate between attended and unattended Bit off = secondary logical unit will not alternate between attended and unattended	23	17
		X'03'	Reserved	24	18

Table 8. BINPSCHR field of BNDAREA DSECT for logical unit profile 6
DSECT DS or ORG label	DSECT EQU label	Value	Meaning	Dec offset	Hex offset
BINLULEV			LU 6 Level	14	E
	BINLV02	X'02'	Level 2	14	E
BINFLG0			LU 6.2 flags, byte 0	21	15
	BINDSSSP	X'80'	Distributed Systems Security supported	21	15
	BINDESS	X'40'	Extended security sense codes supported	21	15
BINFLG1			LU 6.2 flags, byte 1	22	16
	BINCLSS	X'10'	Access security information support	22	16
	BINDPWS	X'04'	Password substitution support	22	16
	BINSLAPS	X'08'	Session level security protocol	22	16
	BINAVFS	X'02'	Already-verified function support	22	16
	BINPV	X'01'	Persistent verification function support	22	16
BINFLG2			LU 6.2 flags, byte 2	23	17
	BINSYNCH	X'60'	Synchronization level field	23	17
	BINCONF	X'20'	Confirm supported	23	17
	BINCSBK	X'40'	Confirm, sync point, and backout supported	23	17
	BINRS	X'10'	Reconnect support	23	17
	BINRSR	X'0C'	Responsibility for session, reinitiation field (reserved when parallel sessions are supported)	23	17
	BINOPRC	X'00'	Operator controlled	23	17
	BINPRIMH	X'04'	Primary will reinitiate	23	17
	BINSECNH	X'08'	Secondary will reinitiate	23	17
	BINETHR	X'0C'	Either may reinitiate	23	17
	BINPSS	X'02'	Parallel session support for LU-LU pair: 0= PSS not supported, 1= PSS supported	23	17
	BINGDSVF	X'01'	Change number of sessions GDS variable flow support: 0= not supported, 1= supported	23	17
BINFLG3		X	LU 6.2 Flags, byte 3	24	18
	BINRSV37	X'80'	Reserved	24	18
	BINLTDRC	X'40'	1 = limited resource exists	24	18
	BINRSV38	X'3C'	Reserved	24	18
	BIN6CMP1	X'02'	Applies only to BINSMED1	24	18
	BIN6CMP2	X'01'	(See BINCMP1 and BINCMP2)	24	18
	BINCMP1 BINCMP2	X'02' X'01'	BIND Request: 00 = no compression 01 = compression bid 10 = reserved 11 = compression required BIND Response: 10 = compression used xx = reserved	24	18