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IM DLM3054-01EN
Error
The instrument triggers when it detects various types of errors.
• Error Type (Error Type Or)
Select the types of errors to detect from the following. The instrument triggers if any of the selected errors is
detected.
Parity
The instrument calculates the parity of the protected identifier field.
If the result does not satisfy the following equations, the instrument
triggers on the protected identifier field’s stop bit position.
Even Parity Check:
ID0 xor ID1 xor ID2 xor ID4 xor P0 = 0
P0 = ID0 xor ID1 xor ID2 xor ID4
ODD Parity Check:
ID1 xor ID3 xor ID4 xor ID5 xor P1 = 1
P1 = ¬(ID1 xor ID3 xor ID4 xor ID5)
Sync
If the synch field is not 0x55, the instrument triggers on the synch field’s
stop bit position.
ID/Data
The instrument triggers on the AND of ID and Data conditions.
• If you specify X in the ID bit pattern or data pattern, the condition is assumed to be met regardless of the
corresponding bit status.
• In a bit pattern or data pattern setting, if a binary pattern contains any Xs, the corresponding hexadecimal
display will be “$.”
• Trigger Condition (Condition Setup)
On the Condition Setup screen, set the ID, data, and other trigger conditions.
Break Synch
Triggers on a synch field that comes after a break field when the trigger condition is set to Break Synch only.
Break Synch of ID/Data is always selected as a trigger condition.
ID
Set the bit pattern for the 6-bit protection ID (ID0 to ID5) in the protected identifier field in hexadecimal or
binary notation. The ID trigger condition is met when the input signal ID bit pattern matches the specified bit
pattern.
• Hex: Select this setting to set the ID bit pattern in hexadecimal notation.
• Bin: Select this setting to set the ID bit pattern in binary notation.
4 Triggering