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ICE1-*-G60L-V1D, ICE1-*-G60L-C1-V1D
Troubleshooting
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Evaluating Alarms in the TIA portal
If a diagnostics alarm is triggered, the user program in the TIA portal is interrupted and a diag-
nostics block is called. The following blocks are used:
The initial information regarding the cause and type of fault is provided by the OB called and its
start information. More detailed information regarding the error event can be obtained in the
error OB by calling SFB 54 RALRM (read supplementary alarm information). For this purpose,
SFB 54 must called in every error OB.
If the error OB called does not exist in the CPU, the CPU switches into the STOP operating
state.
A diagnostics data record can also be called via its data record number using the system func-
tion block SFB 52 "RDREC" in OB 1.
The Structure of the Diagnostics Data Records
Block version 0x0101 and the format identifier (USI, User Structure Identifier) 0x8000 are used
to display the diagnostics data records.
The data values "ChannelNumber" and "ChannelError" contain the following values, depending
on the error that has occurred:
If there is an accumulation of errors, the channel diagnosis section, including the "Channel-
Number,
”
"ChannelProperties," and "ChannelErrorType" data values, is repeated for every
error in the diagnostics data record.
To display diagnostics, select the faulty module in the distributed peripherals of the online TIA
Portal, accessed via the project navigation. Click on the maintenance icon to open the online
diagnosis for slot 1.
Switch to the "Channel Diagnostics dialog to display the pending module diagnostics
Cause
OB call
Peripheral fault (short circuit, overload, wire break, low voltage on an I/O mod-
ule)
OB B2
Complete system failure
OB B6
Type of error
Reference
ChannelNumber
ChannelErrorType
Low sensor or actua-
tor power supply volt-
age
Module
0x8000
0x0002
Sensor short circuit
M12 slot
0x0001 to 0x0008
M12 slot number
0x0102
Actuator short circuit
Channel A of an M12
slot
0x0001 to 0x0008
M12 slot number
0x0100
Actuator short circuit
Channel B of an M12
slot
0x0001 to 0x0008
M12 slot number
0x0101