General

Table 1. General variables
Name	Pool	Type	Len	Description
Z	shr	non	0	Null Variable
ZACCTNUM	shr	non	40	The MVS™ account number specified at logon time.
ZAPLCNT	shr	non	4	Number of times APL invoked for a logical screen
ZAPPLID	shr	non	8	Application identifier
ZAPPTTL	any	in	N/A	When running in GUI mode, the title to be displayed in the window frame. Note: If the panel is to be displayed in a pop-up window, the value specified in ZWINTTL will be used instead of ZAPPTTL.
ZBDMAX	shr	i/o	9	Maximum number of displays that can occur within a batch mode session. This value is obtained from the BDISPMAX keyword on the ISPSTART command.
ZBDMXCNT	shr	non	9	Count of current number of displays in a batch mode session
ZCLIENT	shr	non	4	If ISPF is communicating with a client using JSON data structures ZCLIENT will be set to a value of JSON.
ZCS	shr	non	5	Multicultural support currency symbol
ZCSDLL	shr	non	8	File name of the DLL required for this level of code for the Client/Server
ZDECS	shr	non	1	Multicultural support decimal separator character
ZDEL	prof	non	1	The delimiter is used to separate stacked commands. The default delimiter is a semicolon (;).
ZEDLMSG	shr	in	79	Available for an edit macro to set the long message for the next display.
ZEDSMSG	shr	in	24	Available for an edit macro to set the short message for the next display.
ZENTKTXT	any	in	12	When you are running in GUI mode, the name that appears on the Enter key push button. If this variable is not found, "Enter" appears on the push button.
ZENVIR	shr	non	32	Environment description: Characters 1 to 8 contain the product name and sequence number, in the form `ISPF` x.y. The sequence number x.y has this meaning: 7.0 means ISPF for z/OS® Version 2 Release 1.0 6.3 means ISPF for z/OS Version 1 Release 13.0 6.1 means ISPF for z/OS Version 1 Release 11.0 6.0 means ISPF for z/OS Version 1 Release 10.0 5.9 means ISPF for z/OS Version 1 Release 9.0 5.8 means ISPF for z/OS Version 1 Release 8.0 5.7 means ISPF for z/OS Version 1 Release 7.0 5.6 means ISPF for z/OS Version 1 Release 6.0 5.5 means ISPF for z/OS Version 1 Release 5.0 5.2 means ISPF for z/OS Version 1 Release 2.0 5.0 means ISPF for z/OS Version 1 Release 1.0 OR 5.0 means ISPF for OS/390® Version 2 Release 10.0 4.8 means ISPF for OS/390 Version 2 Release 8.0 Note: See also the system variables ZISPFOS and ZOS390RL. Characters 9 to 16 contain the generic operating system name (MVS). Characters 17 to 24 contain the operating system environment (TSO or BATCH). Characters 25 to 32 contain blanks and are reserved.
ZEURO	shr	non	1	The EURO currency symbol.
ZGUI	shr	non	68	Workstation address or name (in character format) if ISPSTART is issued with the GUI parameter or if specified on the Settings GUI invocation panel. If ISPF is invoked by a client ZGUI will be set to a value of CLIENT. Otherwise ZGUI will be set to blank if ISPSTART is issued without the GUI parameter or if GUI is not invoked from the Settings panel.
ZISPFOS	shr	non	30	The level of ISPF code that is running as part of z/OS on your system. This level might or might not match the z/OS level found in ZOS390RL.
ZISPFRC	shr	in	8	Return code from ISPSTART-selected dialog to invoking application.
ZKEYHELP	any	in	8	Keys help panel identifier. If a keys help panel is not specified on the referenced keylist, the application can provide the keys help panel name in this variable. If the help panel name is present as part of the referenced keylist definition, it takes precedence over the ZKEYHELP value. This system variable must be redefined each time the keys help panel is to change.
ZLANG	prof	non	8	Session language
ZLOGO	shr	non	3	Indicates whether the user has requested bypass of LOGO panel. NO indicates that the user has specified the NOLOGO keyword at the time ISPF was called, thus, requesting that the LOGO panel be bypassed. Otherwise, the value of the variable will be YES.
ZLOGON	shr	non	8	Stepname of TSO logon procedure
ZNESTMAC	any	in	2	When set to a value of NO, REXX and CLIST edit macros are not invoked as nested commands, even when the NESTMACS parameter is specified on the ISPSTART command.
ZMLPS	shr	non	3	Indicates whether the ISPF Profile Sharing feature is active. ZMLPS has a value of either YES or NO.
ZOS390RL	shr	non	16	Indicates the z/OS release running on your system.
ZPANELID	shr	non	8	The name of the currently displayed panel.
ZPFKEY	shr	non	4	The name of the PF key (PFxx) in effect when the user exits the panel. If ZPFKEY = PF00 then no PF key is in effect.
ZPLACE	prof	i/o	7	Command line placement (ASIS or BOTTOM)
ZPREFIX	shr	non	8	TSO user prefix
ZPROFAPP	prof	in	8	Name of application profile pool extension table
ZSCRCUR	shr	non	4	Displays the number of logical screens currently in use.
ZSCREENC	shr	non	5	Cursor position within the logical screen data.
ZSCREENI	shr	non	?	Logical screen data. Size depends upon your screen size.
ZSCRNAME	shr	in	8	Screen name set by dialog. The screen name is in effect only for the select level in which it was defined. Option 7.3 can alter ZSCRNAME, but this will have no impact.
ZSCRMAX	shr	non	4	Displays the number of logical screens allowed by the installation.
ZSCTPREF	shr	non	4	First site command table prefix
ZSCTPRE2	shr	non	4	Second site command table prefix
ZSCTPRE3	shr	non	4	Third site command table prefix
ZSCTSRCH	shr	non	1	Search order for site command tables relative to system command table. Set to either B (Before ISP) or A (After ISP).
ZSEQ	shr	non	5	Unique number within the sysplex.
ZSM	shr	i/o	3	Indicates whether session manager panels will be used for ISPF options 4 and 6. This variable is initialized from the ISPF configuration table keyword USE_SESSION_MANAGER at startup and stored in the shared variable pool. Once initialized it can only be changed with Option 0 - Settings or by use of the RESET_USE_SESSION_MANAGER configuration option.
ZSYSICON	shr	non	8	The 8-character variable that contains the command to be executed when the system icon is double-clicked or close is selected.
ZSYSID	shr	non	8	The 8-character SYSNAME obtained from the SYS1.PARMLIB member IEASYSxx which is read at IPL time. NONAME is the default value of SYSNAME. The operator can change this value at IPL time. See the z/OS MVS Initialization and Tuning Reference for more information.
ZSYSNODE	shr	non	12	The network node name of your installation's JES. This name identifies the local JES in a network of systems or system complexes being used for network job entry (NJE) tasks. The node name returned in ZSYSNODE derives from the NODE initialization statement of JES. If the system finds that the subsystem is not active, the ZSYSNODE variable contains the string `--INACTIVE--` (note the string delimiters). If the system finds that the subsystem is neither JES2 4.3 or later, nor JES3 5.1.1 or later, the ZSYSNODE variable contains the string `--DOWNLEVEL--` (note the string delimiters). The value in ZSYSNODE remains the same throughout the ISPF session. Note: If, for instance, the JES subsystem is taken down during an ISPF session and the node name is changed, the value in ZSYSNODE will still contain the value as determined at ISPF initialization.
ZSYSPLEX	shr	non	8	The MVS sysplex name as found in the COUPLExx or LOADxx member of SYS1.PARMLIB. If no sysplex name is specified in SYS1.PARMLIB, ZSYSPLEX contains blanks.
ZSYSPROC	shr	non	8	TSO Logon Procedure name. In foreground, will have the name of the current logon procedure; in batch, will have the value 'INIT'; a Started Task will have the Started Task procedure name.
ZTEMPF	shr	non	44	Name of temporary data set for file tailoring output
ZTEMPN	shr	non	8	DDNAME of temporary data set for file tailoring output
ZTERMCID	shr	non	5	CCSID coded character set identifier of the terminal. Set by ISPF based on the code page and character set of the terminal. If the terminal code page and character set cannot be queried or if they are not supported by ISPF, this variable will be blank.
ZTERMCP	shr	non	4	CECP support 4-digit code page. Note: ZTERMCS is defined as character length 4. It cannot handle 5-character character sets. For example, the character set 65535 is displayed in ZTERMCS as "5535". This does not mean that ISPF has defined character set 5535 (X'159F'). Two other Z variables, ZTERMCS5 and ZTERMCP5, for character set and code page respectively, were created to handle 5-character character sets and code pages. For example, the character set 65535 is displayed in ZTERMCP5 as 65535.
ZTERMCP5	shr	non	5	CECP support 5-digit code page
ZTERMCS5	shr	non	5	CECP support 5-character set
ZTERMCS	shr	non	4	CECP support 4-digit character set
ZTHS	shr	non	1	Multicultural support thousands separator character
ZTS	shr	non	1	Multicultural support time separator character
ZTSICMD	shr	non	32767	The entire initial invocation command string which invoked the ISPF environment. If storage cannot be obtained at startup, only the first 50 characters will be saved. The maximum length is 32767.
ZTSSCMD	shr	non	32767	SELECT portion of the initial invocation command. The maximum length is 32767.
ZUCTPREF	shr	non	4	First user command table name
ZUCTPRE2	shr	non	4	Second user command table name
ZUCTPRE3	shr	non	4	Third user command table name
ZUSER	shr	non	8	User ID
ZVERB	shr	out	8	Command verb after a SETVERB command table action
ZWINTTL	any	in	N/A	Title to be displayed in pop-up window frame
ZWSCDPG	shr	non	4	When running in GUI mode, the code page of the workstation. When not running in GUI mode, value will be blank.
ZWSCON	shr	non	68	TCP/IP or APPC address when ISPF session is connected to a workstation.
ZWSOPSYS	shr	non	16	Operating system of workstation to which the session is connected. The first 10 characters are the operating system name, followed by a blank, followed by two 2-digit numbers separated by a blank. These numbers are returned to ISPF from the operating system and change by version and release.