QUICKDESIGNER
Allen-Bradley
••••
65
Pass Through Mode
QUICKDESIGNER Advanced supports the downloading of application files over the Allen-Bradley
Data H, using the PLC-5 Remote I/O Pass-Through feature. The QuickPanel (QP2) is
connected as a remote I/O device to the PLC-5. This feature allows the customer to download
application files to the QuickPanel without changing cabling, and without having to go from
QuickPanel to QuickPanel with a personal computer for direct downloading. The current Pass-Through
release of QUICKDESIGNER Advanced requires the use of an S-S technologies Data H card
in the personal computer.
PLC-5/30
PROGRAMMABL E
CONTROLLER
CH 0
QUICKPANEL
DH+
REMOTE I/O
AB Data Highway plus (DH+) is the means by which Programmable Logic Controllers and
Programming Stations are linked together so that program and status information can be shared among
stations on the network.
AB Remote I/O (RIO) is a PLC network that allows control of external racks of I/O via a 2 wire
mechanism.
A Rack is a physical and virtual location on the RIO network that contains up to 16 slots. (8 groups, 2
slots/group)
A Slot is both a physical and virtual card location in the Rack that typically holds inputs and outputs,
and can hold function modules such as Basic modules. These function modules can contain program
data which it gets from the PLC via the Block Transfer mechanism.
Block Transfer is a mechanism by which a PLC can transfer 64 words (128 bytes) of information in one
packet to a single slot location via the RIO network.
The Quick Panel can emulate a full set of racks on the AB RIO network. Utilizing Quick Designer
configuration software, a Quick Panel can be configured to emulate inputs and outputs ( relay closures
and sensor inputs ) and function module I/O (analog values) and the block transfers associated with
them.
The standard download feature uses a serial protocol to send application files directly from a PC to a
single Quick Panel. The Pass Through mode is an enhancement to the download operation, which
allows files to be sent to a Quick Panel that is already part of an active RIO network application. The
user selects a PLC location along with a card and slot information. The application file is sent to the
PLC on the Data Highway Plus network. The PLC then uses Block Transfers to send the file out to the
rack and slot location on the RIO network.