Micromod RetroPAK: MOD 30 Installation Manual - Manual (Page 9)

MOD 30ML Replacement for MOD 30 Instruments
PRODUCT DESCRIPTION
The MOD 30 complement of analog and digital inputs and outputs are supported by a
combination of built-in and modular I/O in the replacement instrument. The built-in circuits
reside on the carrier board and provide two analog inputs and two analog outputs. The
modular I/O circuits are contained in plug-in I/O modules; they provide digital inputs, digital
outputs, and additional analog inputs. The carrier board provides the connection locations for
eleven I/O modules. Thus, a total of 15 I/O points (4 built-in and 11 modular) are available in
the replacement instrument. The modular I/O provides flexibility to vary the mix of digital
inputs, digital outputs, and analog inputs to fit specific replacement requirements. The
parameters of each replacement I/O point can be configured to match the parameters of the
corresponding MOD 30 point. A form of the replacement instrument is available with factory
installed I/O modules. The I/O complement of this form matches the full I/O complement of
the MOD 30 controller and controller XL..
Built-in ICN communications circuitry is provided on the carrier board. When required, the
replacement instrument can communicate on the ICN in the same manner as any MOD 30
instrument. When using a Communications Link to provide data to a personal computer, a
link firmware upgrade may be required to handle some new mnemonics from the
replacement instrument.
The built-in communications circuit can be used to support the RS-232 port in the front panel
instead of the ICN. This provides direct communication with a personal computer for data
base configuration. In this case, ICN communication can be provided by installing a 2030N
ICN Communications Module.
The replacement instrument CPU is based on the 16MHZ 68302 microprocessor. An identity
module (1800P) provides the functionality that gives the instrument the capability to execute
a user-configured database. The CPU supports 64K bytes of nonvolatile RAM for database
storage, and a time-of-day clock with battery support. A high speed communications channel
is used between the CPU and both the built-in I/O and any I/O modules installed on the
instrument. The CPU board provides for connection of a plug-in memory module.
1.3.2 1800P MOD 30ML IDENTITY MODULE
The identity module, Figure 1-1, gives the instrument a specific level of process and
communications functionality. The 1800P module is factory installed and provides the
capability to execute a user-configured database which consists of built-in and modular I/O
handling capabilities, PID functionality, and a collection of other control related functions.
which are available in MOD 30 instruments. These functions reside in a group of basic data
base elements called function blocks.
1.3.3 2010P MEMORY MODULE
The optional memory module plugs directly into the CPU board, Figure 1-1, and provides a
mechanism for porting a database from one replacement instrument to another. An
instrument with this option can upload from or download to this module. The memory module
has a write protect setting to prevent accidental erasures. When a memory module is
installed in an instrument with the write protection off, the operating software keeps the
module up-to-date with all real time changes in the instrument. Enhanced security is thereby
provided through this backup database copy. Data retention is more than 10 years with
instrument un-powered.
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