Siemens SINUMERIK 840D sl Series Diagnostics Manual page 232

Overview of Alarms
Definitions: The number of programmed PLC variables auxiliary functions has exceeded the maxi-
mum permissible number. The number is set in MD 28150
$MC_MM_NUM_VDIVAR_ELEMENTS.
Reactions: - Interpreter stop
- NC Start disable in this channel.
- Interface signals are set.
- Alarm display.
- NC Stop on alarm.
Remedy: Modify part program or machine data.
Program Con- Clear alarm with the RESET key. Restart part program
tinuation:
14763
Channel %1 block %2 too many link variables programmed
Parameters: %1 = Channel number
%2 = Block number, label
Definitions: The number of NCU link variables programmed exceeds the maximum limit. The number
is defined in MD $MC_MM_NUM_LINKVAR_ELEMENTS.
Reactions: - Interpreter stop
- NC Start disable in this channel.
- Interface signals are set.
- Alarm display.
- NC Stop on alarm.
Remedy: Modify part program or machine data.
Program Con- Clear alarm with the RESET key. Restart part program
tinuation:
14764
NCU link cannot transfer all link variables immediately
Definitions: Informational alarm for NC program developer.
A value assignment to a link variable (e.g. $a_dld[16]=19) is performed in the main run
and transferred via NCU link to all NCUs in the link network. The bandwidth of this con-
nection restricts the number of value assignments which can be transferred in one inter-
polation cycle.
All value assignments are combined in the next main run block and performed immedi-
ately this block is executed. A main run block is the block at which you would stop in sin-
gle block mode SLB1.
Examples:
Blocks with a real traversing movement (G0 X100), Stopre, G4, WAITM, WAITE,...
The alarm occurs if the number of link variables set in any interpolation cycle exceeds the
number that can be transferred. The link variables are not transferred until one of the next
interpolation cycles. The assignment is not lost!
Reactions: - Alarm display.
- Warning display.
Remedy: Insert main run blocks between the assignments if the program sequence allows. See
also $A_LINK_TRANS_RATE.
Program Con- Clear alarm with the Delete key or NC START.
tinuation:
14765
NCU link cannot transfer all link variables
Definitions: A value assignment to a link variable (e.g. $a_dld[16]=19) is performed in the main run
and transferred via NCU link to all NCUs in the link network. The bandwidth of this con-
nection restricts the number of value assignments which can be transferred in one inter-
2-232
SINUMERIK 840D sl/840D/840Di/810D Diagnostics Guide (DA), 08/2005 Edition
© Siemens AG, 2005. All rights reserved
08/2005