Code 17001: [Channel %1: ] Block %2 no memory left for tool/magazine data
Issue Description & Safety Warning
The Siemens SINUMERIK 840D CNC has triggered a critical [Channel %1: ] Block %2 no memory left for tool/magazine data alarm. Immediate attention from a qualified operator or maintenance technician is required to prevent secondary damage to the equipment or spoiled parts during the manufacturing cycle. Always ensure standard safety and LOTO procedures are followed before accessing electrical cabinets.
Official Troubleshooting Steps
Parameters: %1 = Channel number %2 = Block number, label Definitions: The number of following tool/magazine data vari ables in the NC are given by machine data: - Number of tools + number of grinding data blocks: MD18082 $MN_MM_NUM_TOOL - Number of cutting edges: MD18100 $MN_MM_NUM_CUTTING_EDGES_IN_TOA Tools, grinding data blocks, cutting edges can be used independently of the tool management. The memory for the following data is available onl y if the corresponding bit has been set in MD18080 $MN_MM_TOOL_MANAGEMENT_MASK. - Number of monitoring data blocks: MD18100 $MN_MM_NUM_CUTTING_EDGES_IN_TOA - Number of magazines: MD18084 $MN_MM_NUM_MAGAZINE - Number of magazine locations: MD18086 $MN_MM_NUM_MAGAZINE_LOCATION The following variable is determined by software configuration: Number of magazine spacing data blocks: P2 permits 32 su ch spacing data blocks. Diagnostics Manual (DAsl), 03/2009 Definition: - 'Grinding data blocks': Gr inding data can be defined for a tool from type 400 to 499. Such a data block occupies as much additional memo ry as that provided for a cutting edge. - 'Monitoring data blocks': Each cutting edge of a tool can be supplem ented by monitoring data. - If the alarm occurs while writing from one of the parameters $TC_MDP1/$TC_MDP2/$TC_MLSR, check whether machine data MD18077 $MN_MM_NUM_DIST_REL_PER_MAGLOC / MD18076$MN_MM_NUM_LOCS_WITH_DISTANCE have been correctly set. MD18077 $MN_MM_NUM_DIST_REL_PER_MAGLOC defines the number of different Index1 statements that may be made for an Index2 value. MD18076 $MN_MM_NUM_LOCS_WITH_DISTANCE defines the number of different buffer storage locations that may be named in Index2. Reaction: Correction block is reorganized. Interface signals are set. Alarm display. Remedy: Please inform the authorized personnel/service department. - Modify machine data - Modify NC program, i.e. reduce number of rejected variable. Program Continuation: Clear alarm with NC ST ART or RESET key and continue the program.
Source: SINUMERIK 840D sl / 840Di sl / SINAMICS S120 Diagnostics Manual (DAsl, 03/2009)
Last reviewed: 2026-07-01 · Verified against the manufacturer’s official documentation.
About Siemens SINUMERIK 840D CNC Alarms
Siemens controllers include extensive self-diagnostics that flag or halt the machine when a fault is detected. Error code 17001 on the SINUMERIK 840D CNC identifies one specific fault condition — its documented cause and the official corrective steps are listed above, sourced from Siemens's service documentation. Always confirm against the manual for your exact machine configuration and follow LOTO procedures before servicing.
Complete Alarm List: 4014 Siemens SINUMERIK 840D CNC codes.
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