Control panel functions
There are few functional differences among these control panels. The main difference is that the physical control panel can turn on the system. The virtual control panel cannot.
Notes:
- Some control panel functions might not be available on all system types.
- The x can be any number 0 through 9, any letter A through F, or a blank.
- If you have selected a function, find the selected function in the table and verify that you have completed the correct function.
- If you cannot change the Function/Data display or complete the selected function, contact your service provider.
The following table lists the codes and descriptions for each of the control panel functions and whether each type of the control panel supports these functions.
| Function code | Virtual control panel function? | Function description |
|---|---|---|
| 01 | Yes |
|
| 02 | Yes | Select the IPL type, logical key mode, and IPL speed. |
| 03 | Yes | Start an IPL to load the system. The IPL uses the selected IPL options. |
| 04 | Yes | Lamp test all displays and indicators are switched on. |
| 05 | No | System power control network (SPCN) system reference code (SRC). Display an SRC on the control panel. |
| 07 | Not applicable | Allow you to perform SPCN service functions. |
| 08 | Yes | Fast turn off. To perform a fast turn off, see Stopping the system. |
| 09 through 10 | Not applicable | Reserved. |
| 11 through 19 | Yes | System reference code (SRC) displays an SRC on the control panel. |
| 20 | Yes | Display the machine type, model, processor feature code, processor class indicator, and IPL path description. |
| 21 | Yes | Cause the Use Dedicated Service Tool (DST) display to appear on the system console. To exit DST, select the Resume operating system display option. |
| 22 | Yes | Force system main storage dump. |
| 23 | Not applicable | Reserved. |
| 24 | Not applicable | Reserved. |
| 25 | Yes | Use Service switches 1 and 2 to enable or disable functions 50 through 70. |
| 26 | Yes | Use Service switches 1 and 2 to enable or disable functions 50 through 70. |
| 27 through 32 | Not applicable | Reserved. |
| 33 | Yes | Reorder SPCN addressing. |
| 34 | Yes | Retry main storage dump (MSD) IPL. |
| 35 through 49 | Not applicable | Reserved. |
| 50 | Not applicable | System processing unit stop. |
| 51 | Not applicable | System processing unit status displays the following values: B0 register contents, Next Instruction Address (NIA), and current Task Dispatching Element (TDE) contents. |
| 52 | Not applicable | System processing unit start. |
| 53 | No | Unconfigure an intermittently failing processor (Repeat GARD function). |
| 54 through 56 | Not applicable | Reserved. |
| 57 | Not applicable | Display area addresses for system data. |
| 58 | Not applicable | Set the first character of the base address for the function 62 display. |
| 59 | Not applicable | Set the second character of the base address for the function 62 display. |
| 60 | Not applicable | Set the third character of base address for function 62 display. |
| 61 | Not applicable | Set the fourth character of base address for function 62 display. |
| 62 | Not applicable | Display service processor storage. |
| 63 | Not applicable | System status SRC trace. |
| 64 | Not applicable | Service processor diagnostic status SRC trace. |
| 65 | Yes | Initiate console recovery. |
| 66 | Yes | Reserved. |
| 67 | Yes | Disk unit IOP reset/reload is enabled only by specific disk unit SRCs. |
| 68 | Yes | Concurrent maintenance power domain Power Off. |
| 69 | Yes | Concurrent maintenance power domain Power On. |
| 70 | No | Dump service processor control storage. |
| Power button | Power button in graphical interface for powering off the system only. |
|
| Keystick | See note. | IPL keylock - Manual, Auto, Normal, Secure. |
| Attention light | Yes | Attention state LED. |
| Power indicator | Power indicator in graphical interface | Lit when power is fully operational. |
Note: The remote control panel and virtual control panel
recognize the presence of a keystick. If your system uses a keystick,
the Mode button works with the same functions
as the physical control panel, depending on whether the keystick is
inserted. LAN-connected remote control panels need special authority
to use the Mode button.
If you cannot find the function code in the previous table, the support for added features or devices might not have been available when this information was produced. Look for any supplemental unit function code information for the function code you displayed on the control panel.