Micromod RetroPAK: SLC Installation Manual - Manual (Page 30)

MOD 30ML Multiloop Controller
PRODUCT DESCRIPTION
6
1.3 BASIC HARDWARE
1.3.1 RETROPAK CONTROLLER
The SLC RetroPAK controller, Figure 1-1, s designed for mounting in a panel with a 15.75-
inch depth. The instrument housing contains a 50-point termination facility which accepts all
instrument I/O, communications, and power connections. A separate grounding stud
provides a safety ground connection. This assembly is designed to allow termination signal
entry from either top or bottom, allowing for flexibility in signal separation for wiring
considerations. The instrument connects to the terminals via an edge connector at the back
of the carrier board, permitting interchangeability without disconnecting field wiring.
The carrier board provides the connection locations for the modular I/O. There are eleven
locations for single width I/O modules, however, the SLC RetroPAK controller is already
equipped with process I/O equivalent to the SLC and/or CLC controller. The carrier board
also contains the built-in I/O and communications circuits. Four direct connected analog
inputs accept 4-20mA inputs. A 24V dc transmitter power supply for 2-wire transmitters is
available on all inputs. Two outputs provide a 4-20 mA dc signal. The built-in
communications circuits terminate in five multi-purpose terminals for connection to RS-232
Modbus. The modular communication circuit provides connection to the peer-to-peer
Instrument Communication Network (ICN).
The 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.
Catalog Number Description for SLC RetroPAK
BASE NUMBER SLCRETRO SLC RetroPAK Controller
POWER SUPPLY 0 24 Vdc (20 – 50 Vdc)
1 85 – 250 Vac, 50 – 400 Hz
CONFIGURATION 000 None (user configured)
SLC Factory configured to match existing SLC program
CLC Factory configured to match existing CLC program