Rockwell-automation T8160 Trusted TMR Interface Manual de usuario descargar pdf (Pagina 28)

Trusted

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

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

1 2 ... 23 24 25 26 27 28 29 30 31 32 33 ... 79 80

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Rockwell-automation T8160 Trusted TMR Interface Manual de usuario Pagina 28

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