Crystal Vision
Installation
SW808 User Manual R1.8
31
22/12/2008
6.6 Using module GPIs
Each slot has an associated set of GPI connections for remote control and external status
outputs on the frame rear-panel remote connectors. For convenience, GPI lines are
associated with reference codes ‘a’ to ‘f’ in the connector pin-out tables for each frame.
The following table shows the binary weighted code required to recall presets or macros 1
to 16 according to the state of GPI ‘e’. A ‘0’ is an open GPI input and a ‘1’ is a grounded
GPI input.
Recall
Preset
No change 1 2 3 4 5 6 7 8
9
10 11 12 13 14 15
GPI ‘a’
0
1 0 1 0 1 0 1 0 1 0 1 0 1 0 1
GPI ‘b’
0
0 1 1 0 0 1 1 0 0 1 1 0 0 1 1
GPI ‘c’
0
0 0 0 1 1 1 1 0 0 0 0 1 1 1 1
GPI ‘d’
0
0 0 0 0 0 0 0 1 1 1 1 1 1 1 1
OPEN (+5V)
GROUND
‘a’, ‘b’, ‘c’, ‘d’
See table above
‘e’
Selects Stored Presets
Selects stored Macros
‘f’
Not assigned
Not assigned
GPI input assignment
GPI input connections have 10k
Ω
pull-up resistors to +5V. Closed-contact switches or
+5V to +24V logic levels can be used
GPI output connections (when provided) have 330
Ω
series resistors fitted to drive LEDs
and 10k
Ω
pull-up to +5V (to drive a remote input). Bulbs rated from 5V to 24V can be
used by changing the series resistors to 0
Ω
0805-type. See illustration below.
.
Change the six resistors marked A, B, C, D, E, F to 0
Ω
0805 type for external 5 - 24V bulbs
Note:
GPI outputs are not currently provided for the SW808.
Jumpers PL 4, 5, 6 and 7 should be left in the left hand GPI position to enable normal
GPI operation and in the right hand position to enable RS485 comms for a SW808
Controller.