Max Machinery 121 INDICATOR - Manual (Page 8)

Pg 8 121-000-350 © 2001 Max Machinery, Inc.
Specifications
quality, calibration, and maintenance personnel
will find this mode of operation very useful. It is
also useful for factory testing.
Many of these tests may be used during start-up
of a new system. Inputs signals may be read, and
output signals may be exercised to verify the
electrical interconnects before the entire system
is put on line.
The following action items may be performed in
the Maintenance Mode:
Print Calibration/Maintenance Report
Examine Audit Trail
Perform Keypad Checkout
Perform Display Checkout
Perform Pulse Input Checkout
Perform Pulse Output Checkout
Perform Control Input Checkout
Perform Relay Output Checkout
Perform Analog Input Checkout
Perform Analog Output Checkout
Calibrate Analog Inputs using the Learn Feature
Calibrate Analog Output using the Learn Feature
Battery Check
Note that a calibration of the analog input/output
will advance the audit trail counters since it
effects the accuracy of the system.
RS-232 Serial Port
The 121 Series has a general purpose RS-232 Port
which may be used for any one of the following
purposes:
Transaction Printing
Data Logging Internal Datalog Dumps
Computer Communication Link
Configuration by Computer
Print System Setup
Print Calibration/Malfunction History
Remote Control
Instrument Setup by PC’s over Serial Port
A Diskette program is provided with the 121 Series
that enables the user to rapidly configure the indicator
using a Personnel Computer. Included on the diskette
are common instrument applications which may be
used as a starting point for your application. This
permits the user to have an excellent starting point
and helps speed the user through the instrument setup.
Operation of Serial Communication Port with
Printers
121 Series’s RS-232 channel supports a number of
operating modes. One of these modes is intended to
support operation with a printer in metering
applications requiring transaction printing, data
logging and/or printing of calibration and
maintenance reports.
For transaction printing, the user defines the items
to be included in the printed document. The user
can also select what initiates the transaction print
generated as part of the setup of the instrument.
The transaction document may be initiated via a
front panel key depression, a remote contact
closure, or upon completion of a batch.
In data logging, the user defines the items to be
included in each data log as a print list. The user
can also select when or how often he wishes a
data log to be made. This is done during the setup
of the instrument as either a time of day or as a
time interval between logging.
The system setup and maintenance report lists all
the instrument setup parameters and usage for the
current instrument configuration. In addition, the
Audit trail information is presented along with a
status report listing any observed malfunctions
which have not been corrected.
The user initiates the printing of this report at a
designated point in the menu by pressing the print
key on the front panel.