Le Maitre Ltd.
Wireless SQP User Manual
21
5.4.2
Cue to canister relationship
The 18R2 has 18 individual cue firing buttons. On the WSQP however, each cue number is “mapped” in
binary to address and provide the operator the ability to use a single cue to fire a specific combination of
canisters. There are 4 individually controllable canisters on a WSQP, and so there are 15 possible
combinations of canisters that can be fired. See the table 2 below, which shows the cue to canister
mapping - numbering according to Figure 2 (section 4.6).
Canister Number
4
3
2
1
Cue
Number
1
0
0
0
1
2
0
0
1
0
3
0
0
1
1
4
0
1
0
0
5
0
1
0
1
6
0
1
1
0
7
0
1
1
1
8
1
0
0
0
9
1
0
0
1
10
1
0
1
0
11
1
0
1
1
12
1
1
0
0
13
1
1
0
1
14
1
1
1
0
15
1
1
1
1
Table 2 Cue to canister addressing (1s represent individual fire orders)
For example:
o
If you want to fire all four canisters, use cue 15.
o
If you want to fire only canister 1, use cue 1.
o
If you want to fire only canister 4, use cue 8.
o
If you want to fire canisters 4, 2 and 1, then use cue 11.
Please note:
With this control scheme there is no reason to ever use more than one cue at any
time. WSQP will fire only according to the last pressed cue regardless of whether the previous one
is still active (held down) or not. A cue needs to be deactivated (released) before using it again.
For example: If you are doing a burn from canister 3 (using cue 4) and wish for canister 1 to join
in for a double canister burn, you need to activate cue 5 and release cue 4. Activating cue 1 and
holding them both active would result in simply switching from canister 3 to canister 1.
5.4.3
Efficient canister sharing
This method of addressing is especially useful for scripting purposes, and is important to keep in mind when
designing a show using the COBRA scripting functionality.
Each canister provides roughly 30 seconds of flame time, and as such a designer needs to be mindful that
they must balance usage of the fuel for their show to get the most out of a set of canisters.
As an example, imagine a show has flame height restrictions which limit the usage to only 2 canisters at any
one time; it makes sense to evenly spread the use of the canisters to get the maximum flame time out of
the 4 canisters.
So for four consecutive bursts of 2 canisters, instead of just using cue 3 for all four bursts, rather do two
bursts using cue 3 (canisters 1 and 2 firing), and the last two bursts using cue 12 (canisters 3 and 4 firing).
