Bailey Infi 90 INPCI01, Instruction, Page: 10 / 43

OVERVIEW
I-E96-620A 1 - 1
SECTION 1 - INTRODUCTION
OVERVIEW
The Plant Loop to Computer Interface (INPCI01) is a communi-
cation interface that enables a computer to communicate with
modules on an INFI 90 Plant Loop. Three modules make up the
interface. The Loop Interface Module (INLIM03) handles the
module bus to Plant Loop communication transfer. The Point
Table Module (INPTM01) does report routing, interprets com-
mands to and from the computer and holds point tables (data
storage). The Serial Interface Module (INSIM01) provides an
RS-232-C interface to the computer. It translates information
from the computer and sends it to the PTM on the module bus.
Figure
1-1 shows an example of the INPCI01 within the INFI 90
hierarchy.
Figure 1-1. The INPCI01 within the INFI 90 Hierarchy
COMMUNICATION HIGHWAY (PLANT LOOP)
MODULE BUS
NTCL01
INLIM03 INPTM01 INSIM01
NTCU01
COMPUTER
T00406A
COAX OR
TWINAX CABLE
NKLM01
DMA CABLE
NKTU01
RS-232-C