ASE2000 V2 Communication Test Set User Manual 195
Parity Generates a parity error in the îš¿rst octet. IEC 60870-5-101 uses even parity.
This selection requires an ASE manufactured communication card, and also
requires that the Native Asynch Mode box on the Communication properties
tab is not checked
Checksum Generates a checksum error
Framing Generates a framing error near the start of the message by changing a stop bit
from 1 to 0 This selection requires an ASE manufactured communication card,
and also requires that the Native Asynch Mode box on the Communication
properties tab must is not checked
FCB:0 Transmits the FCB bit state as 0
FCB:1 Transmits the FCB bit state as 1
NAK Messages Where appropriate, sends a NAK in place of an ACK
No Data Link Acks Never sends Data link acknowledgement messages
Randomly Select Generate an occasional error by applying rules for one of the other Force
Error options enabled. If this option is not checked, all enabled errors (where
possible) are processed for every transmission
28.4.2. IEC 60870-5-104 Protocol Tab
The IEC 60870-5-104 Protocol Menu is shown below.
Comm Addr is as explained for IEC 60870-5-101
System Time is as explained for IEC 60870-5-101
Force Errors contains a list of error-generating instructions that can be followed in preparing a
message for transmission. Options are:
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