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Issue 6
August 19, 2001
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June 15, 2001
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May 23, 2001
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January 19, 2001
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Issue 1
December 05, 2000
Vol. 1
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Field Bulletin Alert
VersaMax Ethernet NIU Using Modbus TCP Protocol
by George Koh
Loss of control of outputs has been found to occur in VersaMax Ethernet Network Interface Units (IC200EBI001-AA and IC200EBI001-AB) using the Modbus TCP Protocol. This loss of control can occur under certain circumstances (such as unplanned interruption of power, of the communication channel, or of the control application), which are not unusual under normal operating conditions. This loss of control can cause unexpected equipment operation that could result in personal injury or property damage.
[FULL STORY]
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