06.03
10.4 Memory configuration
10-298
Siemens AG, 2003. All rights reserved
SINUMERIK 840Di Manual (HBI) – 06.03 Edition
Number Ref.Name/remarksIdentifier
28090 MM_NUM_CC_BLOCK_ELEMENTS Number of block elements for Compile cycles
28100 MM_NUM_CC_BLOCK_USER_MEM Size of block memory for Compile cycles
28105 MM_NUM_CC_HEAP_MEM Heap memory for compile cycle applications
28210 MM_NUM_PROTECT_AREA_ACTIVE Number of simultaneously active protection zones /FB/, A3
28500 MM_PREP_TASK_STACK_SIZE Stack size of preparation task
28510 MM_IPO_TASK_STACK_SIZE Stack size of IPO task
28550 MM_PRSATZ_MEM_SIZE Available memory for internal blocks
Axis-specific ($MA_ ...)
38010 MM_QEC_MAX_POINTS Number of values for quadrant error
compensation
/FB/, K3
/IAD/
10.4.2 SRAM memory
The free SRAM memory is displayed in machine data
S MD18060: INFO_FREE_MEM_DYNAMIC (free static memory).
The free SRAM should not be less than 15,000 bytes to ensure that data (e.g.
tool offsets) can be read in at all times.
Modifying the machine data listed in Table 10-14 results in a reconfiguration of
the SRAM with a loss of all user data. Before the change comes into effect in
the NC, the following alarm message is output:
S Alarm: “4400 MD change results in reorganization of the non–volatile
memory (loss of data!)”
Notice
When reconfiguring the SRAM memory, all user data are lost. To prevent data
loss, a series machine start-up file should be created prior to reconfiguration
(see Section 14.2, Page 14-451).
Table 10-14 Machine data required to configure the SRAM
Number Identifier Name/remarks Ref.
General ($MN_ ...)
18060 INFO_FREE_MEM_STATIC Display data of the free static memory
18080 MM_TOOL_MANAGEMENT_MASK Screen form for reserving memory for the tool
management
/FBW/
18082 MM_NUM_TOOL Number of tools managed by NCK
18084 MM_NUM_MAGAZINE Number of magazines managed by NCK /FBW/
18086 MM_NUM_MAGAZINE_LOCATION Number of magazine locations /FBW/
18090 MM_NUM_CC_MAGAZINE_PARAM Compile cycles of tool management: Number of
magazine data
/FBW/
Free memory
Reconfiguration of
the SRAM
Machine data
10 NC Start-U
with HMI Advanced
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