920i Installation manual - Rice Lake Weighing Systems

About This Manual
This manual is intended for use by service technicians
responsible for installing and servicing 920i ® digital
weight indicators. This manual applies to Version
5.02.00 of the 920i indicator software, which is
compatible with both the serial interface and USB
hardware versions of the indicator.
Configuration and calibration of the indicator can be
accomplished using the iRev 4 configuration utility,
serial commands, or the indicator front panel keys.
See Section 3.1 on page 24 for information about
configuration methods.
Some procedures described in this manual
require work inside the indicator enclosure.
These procedures are to be performed by
qualified service personnel only.
Authorized distributors and their employees
can view or download this manual from the
Rice Lake Weighing Systems distributor
site at www.ricelake.com/manuals.
The Operator Card included with this manual
provides basic operating instructions for users of the
920i. Please leave the Operator Card with the
indicator when installation and configuration are
complete.
1.0 Introduction
The 920i is a programmable, multi-channel digital
weight indicator/controller. The configuration can be
performed using the front panel, with an attached
USB-type keyboard (or PS/2 keyboard if using serial
interface), or by using the iRev 4 utility.
Custom event-driven programs can be written with the
iRite language up to 512K in program size. These
programs are compiled with an iRite compiler utility,
which can only be downloaded into the indicator. The
RLWS Web Update utility can be used to download
firmware upgrades to a PC from the RLWS web site;
iRev 4 provides functions for installing the new
software into the 920i.
Onboard Features
NOTE: Choice of interface board (serial or USB) affects Port2.
Features of the 920i include:
• Support for A/D scale or serial scale inputs.
The maximum number of scale inputs is 28;
these can be combined to represent up to 32
scale configurations.
• Six digital I/O channels on main board, each
configurable as either input or output.
• Four serial ports on main board (Ports 1–4)
support duplex RS-232 up to 115200 bps. Port
2 supports hardware handshaking and remote
keyboard input; Ports 3 and 4 support 20mA
output; Port 4 supports 2-wire RS-485
communications.
• With USB interface card: onboard USB
support for a host PC and the following
devices: one flash drive, two printers, and/or
one keyboard (connecting more than one
device requires a USB hub). The USB
interface card applies only to Port 2.
• With serial interface card: external DB-9 and
DIN-8 connectors for serial connection to a
PC and attachment of PS/2 remote keyboard.
(cannot be used with the USB card).
• Available in 115 VAC and 230 VAC North
American and European versions.
Other features include:
• 62K of non-volatile RAM can be allocated to
databases using the iRev 4 database editor.
• Configurable print formats can be defined for
up to 1000 characters each. These formats are
used to print gross or net weights, truck in/out
weights, setpoint weights, accumulator
weights, alert messages, and header
information. Additional print formats can be
created with iRite.
• Six truck modes to store and recall weights
for gross, tare, and net printing. The truck
register contains fields for ID number, weight,
and the transaction time and date. Weights can
be stored permanently or erased at the end of
the transaction.
• The setpoint engine supports 31 configurable
setpoint kinds. Setpoints can be arranged in a
sequential batch routine of up to 100 steps. If
setpoints are configured as free running
setpoints, they can be tied to program control.
This allows for simultaneous batching
operations to be written with the iRite
language.
The 920i is NTEP-certified for Classes III and III L at
10,000 divisions. See Section 11.14 on page 135 for
more information about additional certifications and
approvals.
Introduction 1