Rockwell Automation 1794-OF8IH FLEX Isolated Input/Output HART Analog Modules - Manual (Page 69)

Publication 1794-UM065B-EN-E - September 2010
1794-IF8IH and 1794-OF8IH Configuration 57
Third HART Variable Units Code (8 of 8 bits):
This is the units code for the Third HART Variable.
Fourth HART Variable Units Code (8 of 8 bits):
This is the units code for the Fourth HART Variable.
Interpret the Status
Indicators The module has a single Red & Green indicator for global module
status/power indication. A single bi-color indicator displays the module status
as indicated below.
Module Configuration for
the 1794-OF8IH Output Connections
This module uses the 1794-TB3, Revision B terminal base for full isolation.
Connect the I+ output to the terminal contacts indicated and the
corresponding center return (R) contact. Be sure to observe the polarity
indicated for proper operation. Channels are numbered in order, 0 through 7,
from left to right.
Module Status Indicators
Module
State Condition PU Bit Prog/Run bit Fault bit LED Color and
State
New Power up initialized complete and passed Self-Test.
Loads stored configuration, if it exists. Read Module
Information Block.
(1)
*
(2) * * Red, blink
No Config Module has not received configuration from Master.
It can Set and Get attributes. 0 * * Green, blink
Idle Controller in Program mode.
Communications normal 1 0 1 Green, blink
Active Controller in Run mode & Communication Is normal 1 1 1 Green, solid
Fault FLEX I/O Comm. Fault or PU bit is one and /Fault=0 * * 0 Green, blink
Fatal fault Module fails self tests or detects illegal state
transition * * * Red, solid
Off External power has not been applied. Off
(1) The status bits in the table correspond to module status bits available in the module status word.
(2) Bit state flagged as '*' depends on the state transition.