Siemens CPU 410-5H Process Automation - Page 36

Structure of the CPU 410-5H
3.2 Monitoring functions of the CPU 410-5H
CPU 410-5H Process Automation/CPU 410 SMART
36 System Manual, 10/2013, A5E32631667-AA
Type of error
Cause of error
Error LED
Program execution error
• Priority class is called, but the corresponding OB is not
available.
• In the case of an SFB call: Missing or faulty instance DB
• Process image update error
INTF
EXTF
Failure of a rack/station
• Power failure in an S7-400 expansion unit
• Failure of a DP/PN segment
• Failure of a coupling segment: Missing or defective IM,
interrupted cable
EXTF
BUSF for PN and DP
REDF for redundant
segments
Communication error Communication error:
• Time synchronization
• Access to DB when exchanging data via communications
function blocks
INTF
Execution canceled The execution of a program block was canceled. Possible reasons
for the cancellation are:
• Nesting depth of nesting levels too great
• Nesting depth of master control relay too great
• Nesting depth of synchronization errors too great
• Nesting depth of block call commands (U stack) too great
• Nesting depth of block call commands (B stack) too great
• Error during allocation of local data
INTF
Missing license for Runtime
software
Internal error due to missing licenses for Runtime software. INTF
Programming error User program error:
• BCD conversion error
• Range length error
• Range error
• Alignment error
• Write error
• Timer number error
• Counter number error
• Block number error
• Block not loaded
INTF
MC7 code error
Error in the compiled user program, for example, illegal OP code or
a jump beyond block end
INTF