This block is proposed by default and does not apply any reflex function to the module output. The output is then controlled from the application as for a standard discrete output module.

The table below shows the block's different interfaces.

Name x x Aux

Meaning

Block's physical output.

Block's internal auxiliary output.

Operation

Illustration

Physical output x is directly controlled by its command bit %Qxy.i updated by the

PLC processor.

Outputs x and x Aux have identical values.

The diagram below illustrates the Direct.

TSX DM 28 RFK Module

Inputs Outputs

PLC task

Acquisition of the inputs

Application processing

Update of the outputs

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Reflex function block: Combinational

Role

Structure

This function enables a logic function to be performed between the inputs and one or more of the module's outputs.

The table below shows the block's different interfaces.

Name x x Aux

Meaning

Block's physical output.

Block's internal auxiliary output.

Operation

Illustration 1

The logic function entered is directly applied to the x output.

Outputs x and x Aux have identical values.

Note: A logic function can be made up of several combinational functions by using the %Ixy.i bits associated with the output channels as intermediate variables.

The illustration below shows an example of a simple combinational function

%I2.1.0

%I2.0.0

%I2.16.0 I

%I2.4.0

Combinational Output 16

Output 16 Aux

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Illustration 2

Installation of the discrete reflex module

The illustration below shows an example of a combinational function using the auxiliary output of the first combinational as an intermediate variable.

%I2.1.0

%I2.0.0

%I2.16.0 I

%I2.4.0

Combinational Output 16

Output 16 Aux

%I2.16.1

%I2.10.0

%I2.8.0

Combinational Output 17

Output 17 Aux

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Reflex function block: Operation timer

Role

Structure

This function is used to apply an on-delay to an action.

The table below shows the block's different interfaces.

Illustration Name

E x x Aux

Meaning

Timer input.

Timer's physical output.

Block's internal auxiliary output.

E TIMER in operation t i

Output x

Output x Aux

Operation

Illustration

This table describes the different operating phases of the operation timer.

Phase

Description

On the rising edge of the E input, time-out ti is launched (time base of 0.1ms).

2 When the time-out is over, the x output changes to 1.

If the high status of input E lasts less time than ti, output x stays at 0.

Note: The values of outputs x and x Aux are identical.

The illustration below shows the trend diagram of the operation timer function block.

E ti x x Aux

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Reflex function block: Idle timer

Role

Structure

This function is used to apply an off-delay to an action.

The table below shows the block's different interfaces.

Illustration Name

E x x Aux

Meaning

Timer input.

Timer's physical output.

Block's internal auxiliary output.

E TIMER idle t i

Output x

Output x Aux

Operation

Illustration

This table describes the different operating phases of the idle timer.

Phase

Description

The x output changes to 1 when the E input changes to 1.

On the falling edge of the E input, time-out ti is launched (time base of 0.1ms).

When the time-out is over, the x output changes to 0.

If the low status of input E lasts less time than ti, output x stays at 1.

Note: The values of outputs x and x Aux are identical.

The illustration below shows the trend diagram of the idle timer function block.

E ti x x Aux

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Reflex function block: Operation-idle timer

Role

Structure

This function is used to apply an on-off-delay to an action.

The table below shows the block's different interfaces.

Illustration Name

E x x Aux

Meaning

Timer input.

Timer's physical output.

Block's internal auxiliary output.

E TIMER in operation/idle t r i t f i

Output x

Output x Aux

Operation This table describes the different operating phases of the operation-idle timer.

Phase

Description

On the rising edge of the E input (on-delay) , time-out tri is launched (time base of 0.1ms).

When time-out tri is over, the x output changes to 1.

If the high status of input E lasts less time than tri, output x stays at 0.

On the falling edge of the E input (off-delay) , time-out tfi is launched (time base of 0.1ms).

4 When time-out tfi is over, the x output changes to 0.

During time-out tfi, if the low status of input E lasts less time than tfi, output x stays at 1.

Note: The x Aux output is at 1 as long as input E or output x is at 1.

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Illustration

Installation of the discrete reflex module

The illustration below shows the trend diagram of the operation-idle timer function block.

E tri tfi x x Aux

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Reflex function block: 2 value operation timer

Role

Structure

This function is used to apply a t1i or t2i on-delay to an action.

The table below shows the block's different interfaces.

Name

Sel

Meaning

Timer input.

Direct x x Aux

Illustration

Selection of time-out t1i or t2i.

l l

Sel = 0 : time-out t1i,

Sel = 1 : time-out t2i,

Selection of block (for string operation).

l l

Direct = 0: block selected

Direct = 1: block not selected (output x takes the value of E).

Timer's physical output.

Block's internal auxiliary output.

E 2-valuesTIMER Output x

Sel

Direct t 1 i t 2 i Output x Aux

Operation This table describes the different operating phases of the 2 value operation timer.

Phase

Description

On the rising edge of the E input, a time-out corresponding to the status of input

Sel is launched.

When the time-out is over, the x and x Aux outputs change to 1.

If the high status of input E lasts less time than the selected time-out, output x stays at 0.

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Illustration

Installation of the discrete reflex module

The illustration below shows the trend diagram of the 2 value operation timer function block.

Sel x x Aux t1i t2i

String operation It is possible to increase the number of time-outs which can be selected by stringing together several blocks, with the x output of one forming the E input of the next.

Phase

Description

On the rising edge of the E input of the first block a time-out is launched, corresponding to: l l the block whose Direct input is at 0, the status of the Sel input.

Note: Two blocks must not simultaneously have their Direct inputs set to 0.

2 When the time-out is over, the x and x Aux outputs change to 1.

If the high status of the E input of the first block lasts less time than the selected time-out, output x stays at 0.

3 The x output changes to 0 on the falling edge of the E input .

Note: l l l x and x Aux have identical values.

the x Aux outputs can be used for tracking, when stringing together several blocks, it is essential to change the statuses of Sel and Direct only when the 0 status of input E is at 0.

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Illustration The table below shows the tracking of two timers.

E 2-values TIMER Output x E 2-values TIMER

Sel

Direct t 1 i t 2 i Output x Aux

Sel

Direct t 1 i t 2 i

Output x1

Output x Aux1

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Reflex function block: Operation-idle time with value selection

Role

Structure

This function is used to apply a t1i or t2i on-delay or off-delay to an action.

The assignment of a t1i time-out on-delay to an action causes the t2i off-delay for this same action.

Similarly, the assignment of a t2i time-out on-delay causes a t1i off-delay to be assigned.

The table below shows the block's different interfaces.

Name

Sel

Meaning

Timer input.

Direct x x Aux

Illustration

Selection of time-out t1i or t2i.

l l

Sel = 0 : t1i on-delay, t2i off-delay.

Sel = 1 : t2i on-delay, t1i off-delay.

Selection of block (for string operation).

l l

Direct = 0: block selected

Direct = 1: block not selected (output x takes the value of E).

Timer's physical output.

Block's internal auxiliary output.

E TIMER in operation/idle Output x

Sel

Direct t i 1 t 2 i

Output x Aux

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Operation This table describes the different operating phases of the operation-idle timer with value selection.

Phase

Description

On the rising edge of input E : l l the time-out corresponding to the status of input Sel is launched, output x Aux changes to 1.

When the selected time-out is over l l output x changes to 1, output x Aux changes to 0.

If the high status of input E lasts less time than the selected time-out, output x stays at 0.

On the falling edge of input E: l l the time-out corresponding to the status of input Sel is launched, output x Aux changes to 1.

When the selected time-out is over l l output x changes to 1, output x Aux changes to 0.

If the low status of input E lasts less time than the selected time-out, output x stays at 0.

Illustration The illustration below shows the trend diagram of the operation-idle timer with value selection function block.

Sel x x Aux t1i t2i t2i t1i

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String operation It is possible to increase the number of time-outs which can be selected by stringing together several blocks, with the x output of one forming the E input of the next.

Phase

Description

On the rising edge of input E of the first block: l the time-out is launched, corresponding to: l the block whose Direct input is at 0, l l the status of the Sel input.

output x Aux changes to 1.

Note: Two blocks must not simultaneously have their Direct inputs set to 0.

When the selected time-out is over l l output x of the relevant block changes to 1.

output x Aux of the relevant block changes to 0.

If the high status of the E input of the first block lasts less time than the selected time-out, output x stays at 0.

On the falling edge of input E of the first block: l the time-out is launched, corresponding to: l l the block whose Direct input is at 0, the status of the Sel input.

l output x Aux changes to 1.

Note: Two blocks must not simultaneously have their Direct inputs set to 0.

When the selected time-out is over: l l output x of the relevant block changes to 1.

output x Aux of the relevant block changes to 0.

If the low status of the E input of the first block lasts less time than the selected time-out, output x stays at 0.

The x output changes to 0 on the falling edge of the E input.

Note:When stringing together several blocks It is essential to change the statuses of the Sel and Direct inputs only when the status of input E of the first block is set to 0..

Illustration The table below shows the tracking of the two timers.

E TIMER in operation/idle Output x E TIMER in operation/idle

Sel

Direct t i 1 t 2 i

Output x Aux

Sel

Direct t i 1 t 2 i

Output x1

Output x Aux1

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Reflex function block: Retriggerable monostable

Role

Structure

This function launches an action of duration ti, with the possibility of extending it for an identical duration.

The table below shows the block's different interfaces.

Name

E x x Aux

Meaning

Monostable input.

Monostable's physical output.

Block's internal auxiliary output.

Illustration

E Retriggerable MONO t i

Output x

Output x Aux

Operation

Illustration

This table describes the different operating phases of the retriggerable monostable.

Phase

Description

On the rising edge of input E (on-delay): l l time-out ti is launched (time-base of 0.1ms), outputs x and x Aux change to 1.

When time-out ti is over, outputs x and x Aux change to 0.

If a new rising edge for input E occurs before time-out ti has elapsed, outputs x and x Aux remain at 1 for a further time-out ti.

The illustration below shows the trend diagram of the retriggerable monostable function block.

E x ti ti ti x Aux

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Installation of the discrete reflex module

Reflex function block: Monostable with time delay

Role

Structure

This function enables an action of a duration t2i to be launched with a t1i delay, with the possibility of extending it for an identical duration.

The table below shows the block's different interfaces.

Name

E x x Aux

Meaning

Monostable input.

Monostable's physical output.

Block's internal auxiliary output.

Illustration

E Time-delayed MONO t 1 i t 2 i

Output x

Output x Aux

Operation This table describes the different operating phases of the monostable with time delay.

Phase

Description

On the rising edge of input E : l l time-out t1i is launched (time-base of 0.1ms), output x Aux changes to 1.

When time out t1i is over: l l time-out t2i is launched (time base of 0.1ms), output x changes to 1 for duration t2i.

If the high status of input E lasts less time than time-out t1i, output x stays at 0.

When time-out t2i is over, outputs x and x Aux change to 0.

If a new rising edge for input E occurs before time-out t2i has elapsed: l l output x remains at 1 for duration t2i of the cycle in progress.

a new cycle begins (see phase).

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Illustration The illustration below shows the trend diagram of the monostable with time delay function block.

E x t1i t2i t1i t2i x Aux

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Installation of the discrete reflex module

Reflex function block: 2 value monostable

Role

Structure

This function enables an action of duration t1i or t2i to be applied to the triggering of an action.

The table below shows the block's different interfaces.

Name

Sel

Meaning

Monostable input.

Direct x x Aux

Illustration

Selection of time-out t1i or t2i.

l l

Sel = 0 : t1i on-delay,

Sel = 1 : t2i on-delay,

Selection of block (for string operation).

l l

Direct = 0: block selected

Direct = 1: block not selected (output x takes the value of E).

Monostable's physical output.

Block's internal auxiliary output.

E 2-values MONO Output x

Set

Direct t 1 i t 2 i Output x Aux

Operation This table describes the different operating phases of the 2 value monostable.

Phase

Description

On the rising edge of input E : l a time-out corresponding to the status of input Sel is launched (time base of

0.1ms), l outputs x and x Aux change to 1.

When the time-out is over, the x and x Aux outputs change to 0.

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Illustration The illustration below shows the trend diagram of the monostable with time delay function block.

Sel t2i t1i x x Aux

String operation It is possible to increase the number of time-outs which can be selected by stringing together several blocks, with the x output of one forming the E input of the next.

Phase

Description

On the rising edge of input E of the first block: l the time-out is launched, corresponding to: l l the block whose Direct input is at 0, the status of the Sel input.

l outputs x and x Aux change to 1.

Note: Two blocks must not simultaneously have their Direct inputs set to 0.

When the time-out is over, the x and x Aux outputs change to 0.

Note:When stringing together several blocks It is essential to change the statuses of the Sel and Direct inputs only when the status of input E is set to 0.

Illustration The table below shows the tracking of the two monostables.

E 2-values MONO Output x E 2-values MONO Output x 1

Set

Direct t 1 i t 2 i Output x Aux

Set

Direct t 1 i t 2 i Output x Aux

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Installation of the discrete reflex module

Reflex function block: Oscillator

Role

Structure

This function enables a time base to be created, with the option of defining the signal parameters (status 0 or 1).

The table below shows the block's different interfaces.

Name

E x x Aux

Meaning

Oscillator input.

Oscillator's physical output.

Block's internal auxiliary output.

Illustration

E OSCILLATOR t 1 i t 2 i

Output x

Output x Aux

Operation

Illustration

This table describes the different operating phases of the oscillator.

Phase

Description

On the rising edge of input E : l output x oscillates for period t1i +t2i where: l l t1i = length of high status of oscillation (time base of 0.1ms), t2i = length of low status of oscillation (time base of 0.1ms), l output x Aux changes to 1.

On the falling edge of input E: l l output x changes to 0 as soon as t1i for the current period is over, the x output changes to 0 when the current period is over.

The illustration below shows the trend diagram of the oscillator function block.

E x t1i t2i t1i t2i x Aux

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Reflex function block: D flip-flop

Role

Structure

This function is used to carry out sequential logic functions, such as memorization of an edge, etc.

The table below shows the block's different interfaces.

Name

CLK

SET

Meaning

Flip-flop input.

Enable input.

Output x set to 1.

RESET x

Output x set to 0. This input takes priority over SET input.

Flip-flop's physical output.

x Aux

Illustration

Block's internal auxiliary output.

Output x E

Clk

Set

Reset

D flip-flop

Output x Aux

Operation This table describes the different operating phases of the D flip-flop.

Phase

Description

On the rising edge of input CLK: l l output x takes the status of input D, output x Aux takes the opposite status to input D.

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Illustration

Installation of the discrete reflex module

The illustration below shows the trend diagram of the D flip-flop function block.

CLK

RESET

SET x x Aux

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Reflex function block: T flip-flop

Role

Structure

This function allows a 2-way split to be performed.

The table below shows the block's different interfaces.

Name

CLK

SET

RESET

Meaning

Flip-flop input.

Enable input.

Outputs x / x Aux set respectively to 1 / 0.

Outputs x / x Aux set respectively to 0 / 1. This input takes priority over SET input.

x x Aux

Illustration

Flip-flop's physical output.

Block's internal auxiliary output.

Output x E

Clk

Set

Reset

T flip-flop

Output x Aux

Operation This table describes the different operating phases of the T flip-flop.

Phase

Description

On the rising edge of input CLK: l if input E is at 1: l l output x takes the opposite status to its current status, output x Aux takes the opposite value to x, l if input E is at 0, outputs x and x Aux remain at that status.

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Illustration

Installation of the discrete reflex module

The illustration below shows the trend diagram of the T flip-flop function block.

CLK

RESET

SET x x Aux

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Reflex function block: 2 threshold counter

Role

Structure

This counting function is used to detect when a threshold th1 or th2 has been crossed.

The table below shows the block's different interfaces.

Name

RESET

Sel

Meaning

Enable input.

l l

E = 0: Up input frozen,

E = 1: Up input valid.

Counting input.

Note: the maximum performance of the counter is 2 Khz (with the Up input directly controlled by the physical input (without filtering)).

Counter initialization input.

In order to take into account a change in the value of the threshold to be reached, a Reset is required.

Selection of counting threshold: l l

Sel = 0 : threshold th1 selected,

Sel = 1: threshold th2 selected,

Note: the maximum value of a threshold corresponds to the maximum number of points (65536points).

x x Aux

Illustration

Counter's physical output.

Block's internal auxiliary output.

Output x E

Reset

Set

COUNTER, 2 t h 1 t h 2 Output x Aux

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Operation

Illustration

Installation of the discrete reflex module

This table describes the different operating phases of the 2 threshold counter.

Phase

Description

On the rising edge of RESET input: l l l counter initialized to 0 inputs x and x Aux change to 0,

Counter increased on the rising edge of Up input .

On the rising edge of Up input, counter increased (value not accessible).

When the selected threshold is reached, inputs x and x Aux change to 1.

The illustration below shows the trend diagram of the 2 threshold counter function block.

RESET

Sel

Up th2 th1 x x Aux

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Reflex function block: Came électronique simple

Role

Structure

This function is used to detect when the two thresholds th1 and th2 have been crossed.

The table below shows the block's different interfaces.

Name

Meaning

Enable input.

l l

E = 0: Up input frozen,

E = 1: Up input valid.

Counting input.

Note: the maximum performance of the counter is 2 Khz (with the Up input directly controlled by the physical input (without filtering)).

RESET 0 Output x forced to 0.

RESET 1 Counter initialization input.

Note: If the counter is not reset to 0, when it reaches the maximum value (65536 points), it will change to 0,1,2 etc. Therefore it is advisable to inhibit counting

(E=0) by using the x Aux output in series with output E.

x x Aux

Illustration

Cam's physical output.

Block's internal auxiliary output.

Output x E

Reset0

Reset1

Single electronic CAM t i t h Output x Aux

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Operation

Illustration

Installation of the discrete reflex module

This table describes the different operating phases of the simple cam.

Phase

Description

On the rising edge of input RESET 1: l l counter initialized to 0 input x Aux changes to 1,

On the high status of input RESET 0: l input x is forced to 0.

On the rising edge of input Up, the counter is increased.

When threshold th1 is reached, output x changes to 1.

When threshold th2 is reached, outputs x and x Aux change to 0.

The illustration below shows the trend diagram of the simple cam function block. th2 th1

RESET 0

RESET 1 x x Aux

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Reflex function block: 1 threshold intervalometer

Role

Structure

This function is used to trigger an action after an interval th with a maximum precision of 0.1ms

The table below shows the block's different interfaces.

Name

Meaning

Intervalometer initialization input.

RESET 1 Outputs x and x Aux are set to 0.

ti Time-base (0.1ms to 6.5535 s).

x x Aux

Illustration

Intervalometer's physical output.

Block's internal auxiliary output.

E INTERVALOMETER, 1 Output x

Reset1 t i t h

Output x Aux

Operation This table describes the different operating phases of the intervalometer.

Phase

Description

On the rising edge of input E : l l counter initialized to 0 input x changes to 0.

Counter increases at the rate of time-base ti.

When threshold th is reached, output x changes to 1.

On the falling edge of input E with output x at 1, output x Aux changes to 1.

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Illustration

Installation of the discrete reflex module

The illustration below shows the trend diagram of the intervalometer function block.

RESET 1

Timebase th x x Aux

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Reflex function block: Burst

Role

Structure

This function is used to generate a pulse stream of a time length 2 x ti.

The table below shows the block's different interfaces.

Illustration Name

E x x Aux

Meaning

Block's input.

Block's physical output.

Block's internal auxiliary output.

E BURST t i n i

Output x

Output x Aux

Operation

Illustration

This table describes the different operating phases of the Burst function block.

Phase

Description

On the rising edge of input E : l l oscillation of output x for ni periods of time, input x Aux changes to 1, l l

When number of periods ni is reached, output x Aux changes to 0.

If output E changes to 0 before time periods ni have elapsed: the oscillation stops at the low status of outputx, input x Aux changes to 0,

The illustration below shows the trend diagram of the burst function block.

E x ti x Aux ti

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Reflex function block: PWM (Pulse Width Modulation)

Role

Structure

This function is used to generate a fixed period periodic signal t1i with a variable duty cycle t2i/t1i.

The table below shows the block's different interfaces.

Name

E x x Aux

Meaning

Block's input.

Block's physical output.

Block's internal auxiliary output (control output).

Illustration

E PWM generation t 1 i t 2 i

Output x

Output x Aux

Operation

Illustration

This table describes the different operating phases of the PWM function block.

Phase

Description

On the rising edge of input E : l l oscillation of output x, control input x Aux changes to 1.

On the low status of input E: l l the oscillation of output x stops at its low status, control input x Aux changes to 0.

Note: if t2i (high status of period t1i) is higher than or equal to t1i, output x continually keeps the high status.

The illustration below shows the trend diagram of the PMW function block.

E x t2i t1i x Aux

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Reflex function block: Detection of underspeed

Role

Structure

This function is used to halt an action, after a start phase t1i (masking), if the time elapsing between two consecutive pulses is higher than t2i.

The table below shows the block's different interfaces.

Name

FB x x Aux

Meaning

Enable function input.

Control input.

Block's physical output.

Block's internal auxiliary output.

Illustration

FB slow speed detection 1 t 1 i t 2 i

Output x

Output x Aux

Operation This table describes the different operating phases of the speed detection.

Phase

Description

On the rising edge of input E : l l time-out t1i (masking time) is launched, input x changes to 1.

When time-out t1 has elapsed, and then on each edge of input à FB, time-out

t2i is launched.

If the rising edges of input FB are spaced out at interval t2i: l l output x changes to 0, output x Aux changes to 1 (signaling end of movement).

If input E changes to 0, outputs x and x Aux change to 0.

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Illustration

Installation of the discrete reflex module

The illustration below shows the trend diagram of the speed detection function block.

E t1i

FB t<t2i t<t2i t<t2i t2i x x Aux

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Reflex function block: Speed monitoring

Role

Structure

This function is used to control or halt an action according to two thresholds t1i and

t2i.

The table below shows the block's different interfaces.

Illustration Name

FB x x Aux

Meaning

Enable function input.

Control input.

Block's physical output.

Speed control output.

E slow speed detection 2

FB t 1 i t 2 i

Output x

Output x Aux

Application example

Activation of a conveyor belt upstream (controlled by the x Aux input) depending on the speed of a conveyor belt downstream: l conveyor belt operational when the speed of the downstream belt is greater than the high threshold 1/t1i, l conveyor belt stops when the speed of the downstream belt is less than the low threshold 1/t2i,

This involves analyzing the time elapsed between 2 consecutive pulses on control input FB.

The following graph illustrates the application example given above.

Speed of the downstream belt

Speed 1/t1i

Speed 1/t2i x Aux

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Operation

Installation of the discrete reflex module

This table describes the different operating phases of the speed monitoring function.

Phase

Description

On the rising edge of input E : l l time-out t1i is launched, input x changes to 1.

As long as the interval between 2 rising edges of input FB remains greater than

t1i: l time-out t1i is relaunched on the rising edge of input FB.

If the interval between 2 rising edges of input FB falls below t1i: l l output x Aux changes to 1, time-out t2i is launched,

If input E changes to 0, outputs x and x Aux change to 0.

x Aux

1/t1i Speed

As long as the interval between 2 rising edges of input FB is less than t2i: l time-out t2i is relaunched on the rising edge of input FB.

If the interval between 2 rising edges of input FB becomes greater than t2i: l l output x Aux changes to 0, time-out t1i is launched (see phase),

If input E changes to 0, outputs x and x Aux change to 0.

x Aux

1/t2i 1/t1i

Note: The operation defined above implies that t2i >t1i.

Speed

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Illustration The illustration below shows the trend diagram of the speed monitoring function block.

E x

FB t>t1i t<t1i t<t2i t>t2i t=t2i t<t1i t<t1i x Aux

178

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Installation of the discrete reflex module

Reflex function block: Type 1 command-check

Role

Structure

This function is used to command an action and to check whether it has been carried out after time period ti

The table below shows the block's different interfaces.

Name

Cde

Ctrl

Acq x x Aux

Meaning

Command input.

Control input.

Acknowledgement of fault.

Block's physical output.

Block's internal auxiliary output.

Illustration

Cmd Command / Control type 1

Ack

Ctrl t i

Output x

Output x Aux

Operation This table describes the different operating phases of the type 1 command-check function.

Phase

Description

On the rising edge of input Cde: l l time-out ti is launched, input x changes to 1.

When time-out ti is over: l if the Ctrl signal changes to status 1 during the time-out interval, the x Aux output stays at 0 (normal situation), l if the Ctrl signal is not received, the x Aux output changes to 1 (type A error signal).

l if the Ctrl signal falls back while the Cde input is at 1, the x Aux output changes to 1 (type B error signal).

A rising edge on the Acq input with the Ctrl input at 1 causes the x Aux to be set to 0.

On the falling edge of the Cde input, the x and x Aux outputs change to 0.

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Illustration The illustration below shows the trend diagram of the type 1 command-check function block.

Cde x t<ti t<ti ti t>ti

Ctrl

Acq x Aux

180

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Installation of the discrete reflex module

Reflex function block: Type 2 command-check

Role

Structure

This function is used to: l command an action and check whether it has been carried out after time period

t1i, l delete the action and check whether it has been deleted after time period t2i.

The table below shows the block's different interfaces.

Name

Cde

Ctrl n

Acq x x Aux

Meaning

Command input.

Control n input

Acknowledgement of fault.

Block's physical output.

Block's internal auxiliary output.

Illustration

Cmd Command / Control type 2

Ack

Ctrl 1

Ctrl 2 t 1 i t 2 i

Output x

Output x Aux

Operation This table describes the different operating phases of the type 2 command-check function.

Phase

Description

On the rising edge of input Cde: l l time-out t1i is launched, input x changes to 1.

When time out t1i is over: l if the Ctrl1 signal changes to status 1 during time-out interval t1i, the x Aux input stays at 0 (normal situation), l if the Ctrl1 signal is not received, the x Aux output changes to 1 (type A error signal).

l if the Ctrl1 signal falls back while the Cde input is at 1, the x Aux output changes to 1 (type B error signal).

The x Aux input is set to 0 in the event of: l l a rising edge on input Acq with input Ctrl1 at 1, change of status of input Cde.

On the falling edge of input Cde: l l time-out t2i is launched, input x changes to 0.

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Installation of the discrete reflex module

Phase

Description

When time out t2i is over: l if the Ctrl2 signal changes to status 1 during time-out interval t2i, the x Aux input stays at 0 (normal situation), l if the Ctrl2 signal is not received, the x Aux output changes to 1 (type A error signal).

l if the Ctrl2 signal falls back while the Cde input is at 0, the x Aux output changes to 1 (type B error signal).

The x Aux input is set to 0 in the event of: l l a rising edge on input Acq with input Ctrl2 at 1, change of status of input Cde.

Illustration The illustration below shows the trend diagram of the type 2 command-check function block.

Cde x t<t1i

Ctrl1 t<t1i t>t1i t1i t<t2i t>t2i t2i

Ctrl2

Acq x Aux

182

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Installation of the discrete reflex module

Reflex function block: Command-counting

Role

Structure

This function is used to decect a th threshold in order to command a positioning action.

The table below shows the block's different interfaces.

Name

Cde

Reset

Up x x Aux

Meaning

Command input.

Outputs x and x Aux are set to 0.

Counting input.

Block's physical output.

Block's internal auxiliary output.

Illustration

Reset

Command / Counting t h

Output x

Output 18 Aux

Operation This table describes the different operating phases of the command-counting function.

Phase

Description

Counter initialized to 0 on the rising edge of the Reset input.

On the rising edge of the Cde input, the x input changes to 1.

On every rising edge of the Up input, the counter is increased.

When threshold th is reached, or if input Cde changes to 0, outputs x and x Aux change to 0.

Note: Input Cde does not influence the counting carried out on the rising edge of the

Up input.

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Installation of the discrete reflex module

Illustration The illustration below shows the trend diagram of the command-counting function block.

Cde

Reset

Up th x x Aux

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Reflex function block: Fault Signaling

Role

Structure

This function is used to indicate a fault, with acknowledgement and clearing.

The table below shows the block's different interfaces.

Illustration Name

Def

Acq

Eff x x Aux

Meaning

Fault input.

Acknowledgement input

Clear input

Block's physical output.

Output inactive for this block.

Err Fault signalling

AcK

Clr t 1 i t 2 i

Output x

Output x Aux

Operation This table describes the different operating phases of the Fault Signaling function.

Phase

Description

If the Def status is at the high status, the x output oscillates for period 2 x t1i.

On the rising edge of input Acq: l l if the fault persists, the output changes to 1, if the fault disappears, the output oscillates for period 2 x t2i.

On the rising edge of the Eff input, the x output changes to 0.

Note: Should the fault still remain, the cycle begins again in phase.

Note: Output x flashes when a fault occurs: l l l l t1i flashes rapidly: fault present and unacknowledged by Acq, t2i flashes slowly: fault not present and acknowledged by Acq, lit up: fault present and acknowledged by Acq, out: last fault cleared by the Eff input after acknowledgement.

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Installation of the discrete reflex module

Illustration The illustration below shows the trend diagram of the Fault Signaling function with

t1i < t2i.

Def

Acq

Eff x

2 x t1i 2 x t1i 2 x t2i

186

TLX DS 57 PL7 xx

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9.2

Reflex function blocks

Presentation

Function block: Direct

Reflex function block: Combinational

Reflex function block: Operation timer

Reflex function block: Idle timer

Reflex function block: Operation-idle timer

Reflex function block: 2 value operation timer

Reflex function block: Operation-idle time with value selection

Reflex function block: Retriggerable monostable

Reflex function block: Monostable with time delay

Reflex function block: 2 value monostable

Reflex function block: Oscillator

Reflex function block: D flip-flop

Reflex function block: T flip-flop

Reflex function block: 2 threshold counter

Reflex function block: Came électronique simple

Reflex function block: 1 threshold intervalometer

Reflex function block: Burst

Reflex function block: PWM (Pulse Width Modulation)

Reflex function block: Detection of underspeed

Reflex function block: Speed monitoring

Reflex function block: Type 1 command-check

Reflex function block: Type 2 command-check

Reflex function block: Command-counting

Reflex function block: Fault Signaling

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