Chapter 7

Programming

Programming occurs after hardware installation is complete. The smoke control system must be programmed for automatic response, weekly self- testing, end-process verification, and response to manual FSCS commands.

Response times

Time response requirements must be kept in mind when programming. They are give in Table 27.

Table 27. Time response requirements

Response time

Process

 

 

10 seconds

(UL 864: 49.2.a)

 

The maximum time allowed from when an acti-

 

vation signal is received until a fire or smoke

 

safety function is initiated. An activation signal

 

could be from the FACP of the FSCS.

 

 

15 seconds

The maximum time allowed between a feed-

 

back signal activation and an FSCS panel indi-

 

cation (either audio or LED). A feedback signal

 

will typically be a binary value, either hard-

 

wired or communicated.

 

 

60 seconds

(UL 864: 49.2.c)

 

Fan operation proof of desired state, either on

 

or off.

 

 

75 seconds

(UL 864: 49.2.c)

 

Damper position proof of desired position,

 

either open or closed.

 

 

200 seconds

(UL 864: 49.2.b)

 

The maximum time allowed between determi-

 

nation of a failure state of critical equipment or

 

process and notification of that failure. A failure

 

state could include communication failures or

 

equipment problems such as a fan not starting

 

as commanded.

 

 

The 10 second time limit mentioned in Table 27 controls how fast Tracer Graphical Programming (TGP) programs can be run. Suggested program rates are 2 seconds for communication watchdogs and 4–5 seconds for control programs.

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Trane Engineered Smoke Control System for Tracer Summit, BAS-APG001-EN Time response requirements, Response time Process

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