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KB80397
Changing a point's state should cancel pulse, square wave, and TPO commands
Revision:  2.0
Published:  9/18/2009
Applies To
Firmware for:
SNAP-PAC-S1
SNAP-PAC-S2
SNAP-PAC-R1
SNAP-PAC-R2
SNAP-PAC-EB1
SNAP-PAC-EB2
Versions
Problem was discovered in version:  
R8.4a
Resolution is included beginning in version:  
B8.4b, build date 06/22/2009 and after
Problem is fixed in version:  
R8.5a

SYMPTOMS

Ethernet brains do not handle pulse trains the same as legacy mistic brains. Ethernet brains do not turn off pulse trains when a Turn Off or Turn On command is sent to an output point, or when the output is configured, such as when a strategy is first run and I/O units are initialized.

In addition, time proportional output (TPO) does not work on high density digital outputs.

WORKAROUND

To programmatically cancel a pulse train on an Ethernet brain, use the Start-On Pulse or Start Off-Pulse command with the on time or off time set to 0. Pulse trains on Ethernet and mistic brains will also be cancelled if the brain receives a reset command.

RESOLUTION

A fix for this problem has been released.

Relevant Downloads
No relevant downloads have been specified.
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