Rockwell Automation 1785-LTx,D17856.2.1 Classic PLC-5 Programmable Controllers Users Manual - Manual (Page 26)

Choosing Hardware
Chapter 2
2-7
Table 2.G
Guidelines for Selecting an Operator Interface
Choose this
operator interface:
For these types of
operations (examples):
Explanation:
PanelView 1 Starts/stops, auto/manual operations,
setpoints, outputs, alarms
Used as an operator window to enter commands that make process adjustments such
as starts/stops and loop changes. Can also be used for alarming operations. Can
communicate with a single PLCĆ5 processor on a remote I/O link. Has a fixed number
of devices and amount of data that it can handle. Has builtĆin error checking. Is an
industrialĆhardened CRT with pushbuttons, solid state memory and processor, and no
moving parts (i.e., disk drive).
Utilizes pass through, which is the ability to download/upload via DH+/remote I/O links.
ControlView 1 Store, display, and manipulate data
on process performance (i.e., trends,
process graphics, formulas, reports,
and journals)
Used as an operator window that communicates with a PLCĆ5 processor on Data
Highway Plus (DH+) link. Designed for use as an information link. Can communicate
to multiple PLC processors. ControlView is a software package that runs on an IBMr
DOSĆbased personal computer.
1
Refer to your local AllenĆBradley sales office or AllenĆBradley distributor for more information on PanelView and ControlView.
Table 2.H
Comparison of PanelView and ControlView Features
Category PanelView ControlView
Communication with
PLC processor
Remote I/O
5 block transfers per terminal maximum (32 words per transfer)
1 discrete transfer per terminal (64 words maximum, one way)
This is 8 racks of transfer
DH+ link
Data Highway
Data Highway II Native Mode
Graphics Character graphics
Create screens with PanelBuilder software
Monochrome or color (8 of 16 colors displayed at a time)
Pixel Graphics
Create screens with Mouse Grafix editor option or C Toolkit
EGA, VGA, or equivalent with 256K RAM
Monochrome or color monitor
Number of
Screens per
Terminal/Workstation
8 to 12 screens of medium complexity typical
200 objects maximum per screen
Limited by terminal memory size: 128 Kbytes
Limited only by hard disk capacity
50 data entry locations per screen
50 tags per command list per screen
300 tags/points maximum per screen
Data Capacity 200 objects maximum per screen 10,000 points maximum in database
Communication
Rate
Limited by blockĆtransfer and discreteĆtransfer timing
Depends on PLC processor and remote I/O link size
8 scan classes, each with userĆconfigurable foreground and
background update times; limited by performance of Data
Highway, DH+, or Data Highway II link
Hardware Keypad or Touchscreen terminals, color or monochrome
AllenĆBradley, IBM, or compatible computer required for
PanelBuilder software
AĆB, IBM, or compatible computer with 286 or 386
processor, math coprocessor, hard disk required at each
operator station
Programming PanelBuilder software
MenuĆdriven with fillĆinĆtheĆblank information entry
Use PanelBuilder to create application file that defines
screens, messages, alarms, then download application file to
PanelView terminal
Create data base online via the menu. MenuĆdriven,
fillĆinĆtheĆblank information entry, or import data via the ASCII
import capability
Create screens with the mouse GRAFIX editor option or C
toolkit option
Messages 496 maximum per terminal Not Applicable
Alarms 496 maximum per terminal 2000 points with Alarming option
Security 8 levels 16 levels with individual operator login capability
Individual objects with security
Screen lockout
Options Remote serial port
EEPROM or EPROM memory
Lots of software options