5
LDB-ST1LE Batcher
Maintenance (Test) Mode:
The Maintenance Mode of the LDB-ST1LE
provides a number of specialized utilities required
for instrument checkout on start-up, setup
documentation and data logger access.
A password is required to gain access to this
specialized mode of operation. Quality 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 Setup Report
Examine Audit Trail
Examine Error History
Perform Keypad Checkout
Perform Display Checkout
Perform Pulse Input Checkout
Perform Pulse Output Checkout
Perform Control Input Checkout
Perform Relay Output Checkout
Perform Analog Output Checkout
Calibrate Analog Output using the Learn Feature
Perform Excitation Output Test
Examine or Dump Data Logger
RS-232 Serial Port
The LDB-ST1LE has a general purpose RS-232
Port which may be used for any one of the following
purposes:
Transaction Printing
Data Logging
Remote Metering by Modem (optional)
Computer Communication Link
Configuration by Computer
Print System Setup
Print Malfunction History
Operation of Serial Communication Port with
Printers
LDB-ST1LE '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 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, upon completion of a batch, time of day or
at a timed interval.
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
requested key on the front panel.
Operation of Serial Port with Modems (optional)
The LDB-ST1LE RS-232 channel supports a
number of operating modes. One of these modes
is intended to support operation with a modem in
remote metering applications.
An external modem is intentionally being used with
the LDB-ST1LE . This permits use with the variety
of modem standards worldwide while avoiding
the specialized approvals required for equipment
that is deemed to fall under the category of
telecommunication equipment.
In the modem mode, the LDB-ST1LE is assumed to
be operating in a remote metering role. In addition,
the LDB-ST1LE will be capable of initiating a call
to a designed telephone number in the event of a
metering malfunction.
