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Allen-Bradley devicenet modules in logix5000 control systems Manual Do Utilizador

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Publication DNET-UM004A-EN-P - March 2004
15-28        Using POINT™ I/O Modules on a DeviceNet Network
1734-IT2I Isolated Thermocouple Input Module
Message size: 8 Bytes 
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Produces (scanner Rx) Input Channel 0 - High Byte
Input Channel 0 - Low Byte
Input Channel 1 - High Byte
Input Channel 1 - Low Byte
Status Byte for Channel 1
Status Byte for Channel 0
OR
UR
HHA
L
LA
HA
LA
CM
CF
OR
UR
HHA
L
LA
HA
LA
CM
CF
OR
UR
Cold Junction Temperature
 (Selectable: Channel 0, Channel 1, or Average of both Channel 0 and 1)
Consumes (scanner 
Tx)
No consumed data
Where:CF  = Channel Fault status; 0 = no error, 1 = fault
CM = Calibration Mode; 0 = normal, 1 = calibration mode
LA = Low Alarm; 0 = no error, 1 = fault
HA = High Alarm;  0 = no error, 1 = fault
LLA = Low/Low Alarm;  0 = no error, 1 = fault
HHA = High/High Alarm;  0 = no error, 1 = fault
UR = Underrange;  0 = no error, 1 = fault
OR = Overrange;  0 = no error, 1 = fault