OPTO 22 SNAP-IAC-16, Руководство пользователя

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NOTES ON LEGACY HARDWARE AND SOFTWARE
SNAP High-Density Digital Module User’s Guide 16
G4 Digital I/O
Connecting to field devices through G4 modules
Some 32-point HDD modules can use a special breakout board, the SNAP-UDC-HDB-G4, to monitor and
control field devices through G4 modules. The rack accommodates up to 32 G4 single-channel digital input or
output modules and attaches to a SNAP 32-point module through a SNAP-HD-BF6 cable.
The advantage of using this breakout board is that G4 modules handle a much higher load than the SNAP
module itself: up to 3 A per point. For complete information, see form 1756,
SNAP TEX Cables and Breakout
Boards Data Sheet .
Connecting to existing G4 racks
ALso, some 32-channel HDD modules can connect to existing G4 and G1 mounting racks using a
SNAP-HD-G4F6 cable, letting youintegrate older G4 digital I/O systems with modern PAC Project software and
SNAP Ethernet-based controllers. For outputs, this connection makes available the G4 module’s 3-amp
switching capability, which provides twelve times the 0.25 amp capability per point of the high-density digital
modules themselves.
These HDD modules and cables also work with some G1 racks, and the SNAP-HD-G4F6 works with some
integrated I/O racks.
For more information, see form 1756, SNAP TEX Cables and Breakout Boards Data Sheet .
SNAP-HD-G4F6 header cable
G4PB16
mounting racks
SNAP-ODC-32-SNK
module
SNAP mounting rack