Trusted, Tmr module t8160 – Rockwell Automation T8160 Trusted TMR Interface User Manual
Page 28
Trusted
TM
TMR Module T8160
Issue 13 May 13
PD-T8160
28
CONFIGURATION
PHYSICAL MODULE:
RACK 1:
16 BOOLEAN inputs.
Voted states of the two 7411F boards as identified by the OEM
parameters.
RACK 2:
3 ANALOGUE inputs
Channel 1 – Error status. i.e. 1 bit per pair of channels. LSB = first
channel. This is set when the corresponding channels of the
two boards disagree after the number of milliseconds
configured in the OEM parameter MSEC.
Channel 2 – Channel Faults (1 bit per channel) for the first module of the
pair. 1 – channel ok, 0 - channel fault
Channel 3 – Channel Faults (1 bit per channel) for the second module of
the pair. 1 - channel ok, 0 - channel fault
RACK 3:
2 BOOLEAN inputs
Inputs reflecting the board status of the two 7411F boards specified.
Channel 1 is module 1 and Channel 2 is module 2. FALSE - board ok,
TRUE - board fault
Notes:
1. All parameters must be supplied, even for virtual boards.
2. Trusted
TM
chassis and slot numbers start at 1, Regent+Plus I/O chassis and slot numbers
start at 1.
EXTRA INFORMATION
Error status:
The error status bits are only set IF channels disagree AND each channel is NOT in a
channel fault condition after MSEC has been exceeded.
The algorithm for the calculation of the error bits is:
Channel state
Channel state
Channel Fault
Channel Fault
Voted input
Error bit
Board 1
Board 2
Board 1
Board 2
After MSEC
Exceeded
Low
Low
In range
In range
Low
0
Low
Low
In range
Fault
Low
0
Low
Low
Fault
In range
Low
0
Low
Low
Fault
Fault
Low
0
Low
High
In range
In range
High
1
Low
High
In range
Fault
Low
0
Low
High
Fault
In range
High
0
Low
High
Fault
Fault
High
1
High
Low
In range
In range
High
1
High
Low
In range
Fault
High
0
High
Low
Fault
In range
Low
0
High
Low
Fault
Fault
High
1
High
High
In range
In range
High
0
High
High
In range
Fault
High
0
High
High
Fault
In range
High
0
High
High
Fault
Fault
Low
0
Entering the Threshold data:
At present the threshold values have to be entered as a count between 0 and 255, (8bit word), e.g. on
a -5V dc to 32V dc system:
COUNTS = (( VOLTAGE + 5 ) / 37) * 255
16V would be represented by:
(16+5)/37
=
0.567.
0.567 * 255
=
145 counts
0VDC would be represented by:
(0+5)/37
=
0.135
0.135 * 255
=
34 counts