Rockwell Automation T8094 8000 Series TMR System Safety Manual User Manual
Page 116
SAFETY MANUAL
D oc N umber T8094
I ssue 27 – June 2013
Page 95 of 103
Direction:
From ITSTM to each DIPT
Values:
not specified
9.10.6.7 DOM, digital output mode
Purpose:
The DOM (digital output mode) is an encoded output from the OTSTM to each
RMET. It is not for direct use by the user application.
Data type:
analogue
Direction:
From OTSTM to each RMET
Values:
not specified
9.10.6.8 FLTA / FLTB, fault A / B
Purpose:
The FLT (fault) outputs let the DIPT and RMET tell the application when there
is a fault on slice A or slice B of a duplex input (DIPT) or output (RMET)
channel
Data type:
Boolean
Direction:
From ITSTM to user application
From OTSTM to user application
Values:
TRUE – there is a fault on the applicable slice
Otherwise FALSE
Notes:
The FLT outputs from the DIPT are latched until a reset command is received
from the related ITSTM.
9.10.6.9 FRQ, frequency
Purpose:
The FRQ (frequency) input sets the quantity of times the ITSTM or OTSTM will
start its test sequences in a time of 24 hours.
Data type:
analogue
Direction:
From application to ITSTM or OTSTM
Values:
1, 2, 3 or 4
Notes:
A value less that 1 is treated as 1, and a value larger than 4 is treated as 4.
9.10.6.10 HR, hour
Purpose:
The HR (hour) parameter is used by the ITSTM and OTSTM to control their
scheduled testing.
Data type:
analogue
Direction:
From controller RTC to ITSTM and OTSTM
Values:
0 to 23
Notes:
The HR input is usually connected to the TrustedTM controller's real time clock.
9.10.6.11 IP, process input
Purpose:
The IP (process input) parameter carries the value from a PI-732 analogue
input channel as a raw unscaled integer
Data type:
analogue
Direction:
From application to LFLT
Values:
0 to 65,535
9.10.6.12 IPA / IPB, input A / B
Purpose:
The IPA and IPB parameters carry the measured input for the channel for their
slices.
Data type:
Boolean
Direction:
From application to DIPT
Values:
TRUE – input channel high
FALSE – input channel low
Notes:
For a simplex input module, connect IPB to the same point as IPA.