S5 timers with compares?

[russg]

Hi,

I'm more used to using S7 and been given an S5 project. Does anyone know how a compare is used when say T21 is input into one of the inputs?

The pic is from the program. I'm assuming it means when T21 gets to 3 seconds it will output A5.1?

Can anyone confirm this please?

 

[gclshortt]

Yes you are correct in reading this program.

file:///C:/Users/Garry/Downloads/Step_5_v_7.2_manual.pdf

The selected comparator operation (! =, ><, >=, >, <=, <) is entered in the
left-hand side of the long box and the format of the operands to the right,
as follows:
F = fixed point number (16 bits)
D = double word (32 bits)
G = floating point number (32 bits)

Regards,
Garry
http://www.accautomation.ca

 

[russg]

Thanks for the info Garry. I would have thought entering T21 would just give you a high or low signal ie 1 bit? I would have thought using the actual timer value would mean having to use the BI or BCD out functions of a timer?

 

[KalleOlsen]

In STL it's like this:

LC T 21; Loading the timer value BCD coded

L T 21; Loading the timer value as integer.


I mean to remember that the timers counts downwards to 0.

Edit: Ad KF+3; the size is dependant of the time base of the value loaded when the timer was started. So it can be 3*10ms, ... to 3*10s.

Kalle

 

[L D[AR2P#0.0]]

From the s7 help:

 

[wimpiesplc]

Yes you are correct in reading this program.

file:///C:/Users/Garry/Downloads/Step_5_v_7.2_manual.pdf

He's not correct; !=F means "not equal to" so at the moment the timer value is 3, the output is off. also the timer probably continues after that depending on it's setting.

second, what's your purpose posting links to your local drive? lol.

 

[L D[AR2P#0.0]]

If in doubt, RTM:

 

[curlyandshemp]

He's not correct; !=F means "not equal to" so at the moment the timer value is 3, the output is off. also the timer probably continues after that depending on it's setting.

second, what's your purpose posting links to your local drive? lol.

from the manual
:

 

[curlyandshemp]

If in doubt, RTM:

always thought it was RTFM

 

[wimpiesplc]

heh shame on me, I was too quick... and confusing with C semantics