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Heidenhain Controller
Parameter · Intermediate · 30-120 minutes
HEIDENHAIN 250-13A9 - Connection setup to DNC not possible
Alarm 250-13A9 occurs when the TNC control cannot establish a DNC (Distributed Numerical Control) connection due to misconfigured TeleService machine parameters. This typically involves incorrect network settings, communication protocol parameters, or TeleService configuration in the machine parameter tables.
HEIDENHAIN 250-13A9 - Connection setup to DNC not possible
Connection setup to DNC not possible
The DNC connection cannot be established. TeleService parameters are improperly configured, blocking remote access.
Root Cause Summary
Alarm 250-13A9 occurs when the TNC control cannot establish a DNC (Distributed Numerical Control) connection due to misconfigured TeleService machine parameters. This typically involves incorrect network settings, communication protocol parameters, or TeleService configuration in the machine parameter tables.
Safety
Causes and Fixes
Access Machine Parameter Menu
Press MOD key, select 'Machine Parameters', navigate to TeleService parameters MP7210-MP7219.
Document current parameter values before making changes
Verify IP Configuration
Check MP7210 (TeleService IP address) and MP7211 (subnet mask) match your network configuration.
Incorrect IP settings can cause network conflicts
Validate Port Settings
Verify MP7212 (TeleService port) is not blocked by firewall and matches DNC server configuration.
Standard TeleService port is 19000, but may vary by installation
Reset TeleService
Set MP7219 (TeleService reset) to 1, then back to 0 to reinitialize the connection.
This will temporarily disconnect all active TeleService sessions
Call a technician if:
Prevention
Common Mistakes
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