Fluke 960CD-220 User Manual
®
Victoreen
960CD-220, 960CD-221
960CD-222 and 960CD-223
March 2005
Manual No. 960CD-220-1 Rev. 2
©2004, 2005 Fluke Corporation, All rights reserved. Printed in U.S.A.
All product names are trademarks of their respective companies
Controller Modules
Operators Manual
Fluke Biomedical
Radiation Management Services
6045 Cochran Road
Cleveland, Ohio 44139
440.498.2564
www.flukebiomedical.com/rms
Table of Contents
Section 1: Introduction................................................................................................ 1-1
1.1 General Description ..................................................................................... 1-1
1.2 Specifications............................................................................................... 1-2
1.3 Applications ................................................................................................. 1-4
1.4 Receiving Inspection and Storage ............................................................... 1-8
1.5 Procedures, Warnings, and Cautions .......................................................... 1-9
1.6 Installation.................................................................................................... 1-9
Section 2: Theory of Operation................................................................................... 2-1
2.1 Bus Interface Logic ...................................................................................... 2-1
2.2 Address Decoding Circuitry ......................................................................... 2-1
2.3 Communication Support .............................................................................. 2-2
2.4 Display/Channel ID ...................................................................................... 2-2
2.5 Switch Settings ............................................................................................ 2-3
Section 3: Maintenance, Calibration and Troubleshooting...................................... 3-1
3.1 Maintenance ................................................................................................ 3-1
3.2 Calibration.................................................................................................... 3-1
3.3 Troubleshooting ........................................................................................... 3-1
Appendix A: Connector Designations ...........................................................................A-1
A.1 Connector Designation ................................................................................ A-1
Appendix B: Applicable Drawings and Bill of Materials ............................................... B-1
B.1 Applicable Drawings ....................................................................................B-1
B.2 Applicable Bill of Materials ........................................................................... B-1
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Introduction
General Description
Section 1
Introduction
1.1 General Description
The 960CD-220 series Controller Modules are the intelligent controlling modules designed for use in
Victoreen's 960 Digital Radiation Monitoring System. There are four different modules included in the
960CD-220 series. All are built on the same processed circuit board. Differences include a
communications option and the related components installed on the module.
Components
The 960CD-220 Controller Module is a self-contained microcomputer on a single printed circuit board.
The module contains the following components.
Motorola MC6809 microprocessor
32K x 8 EPROM
24K x 8 static RAM
Two serial asynchronous communication links with switch selectable baud rates
Optional RS-232, isolated fiber optics transmit or receive communications
Memory protection with battery backup static RAM (battery included on the module)
Buffered 8 bit data bus
Buffered 16 bit address bus
16 Decoded device selects
64 Channel identification codes
6 Digit, seven-segment display driver
1
The modules are rated for nuclear safety-related applications. They are assembled using techniques and
parts selected for the reliability required in a nuclear application. Any non-Victoreen repairs made to the
modules will void their safety-related rating. These modules must be returned to the factory for
authorized, qualified (ANSI 45.2.6. 1978, Skill Level II) service.
1-1
Victoreen 960CD-220,221,222,223
Operators Manual
1.2 Specifications
Dimensions (H x W) 7.5 x 11.5 in (19.1 x 29.2 cm)
Weight 1 lb, 3 oz (0.5 kg)
Operating Temperature 32°F to 122°F (0°C to 50°C)
Relative Humidity 0 to 95% non-condensing
Microprocessor Motorola MC6809
Data Bus 8 Data Lines – D0-D7
Address Bus 16 Address Lines – A0-A15
Control and Timing 1 MHz clock
R/W READIWRITE
SHORT 02 Early 02 for WRITE
RESET Reset
MICRO RESTART External reset originated by scaler
Display Data Sa, Sb, Sc, Sd, Se, Sf, Sg
Display Control DIGIT 1 SELECT
DIGIT 2 SELECT
DIGIT 3 SELECT
DIGIT 4 SELECT
DIGIT 5 SELECT
DIGIT 6 SELECT
Display Driver Capable of driving 6 digit, 7-segment display (externally supplied) on 960
front panel.
Mode Select 4 Position keylock switch:
Remote
Calibrate
Test
Local
Channel lD 64 Codes, switch selectable
Communication LOOP 1 and LOOP 2 asynchronous serial ports with watchdog timer
Optional RS-232C asynchronous serial port (960CD-221 only)
Optional fiber-optic isolator (960CD-222 and 960CD-223 only)
Baud Rate See Table 4-2
Memory Protect POWER FAIL input on loss of AC power, prevents loss of RAM data
Power +5 V @ 1.4 A, +15 V @ 20 mA, -15 V @ 15 mA
Battery Lithium iodide, 10 year Life
1-2
Introduction
Specifications
Figure 1-1. 960CD-220 Series Controller Block Diagram
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1-3
Victoreen 960CD-220,221,222,223
Operators Manual
1.3 Applications
The 960CD-220 series Controller Modules are compatible with both the 960MB Motherboard and the
961MB Motherboard bus structure. There is total compatibility with all of the 960 data acquisition and
input/output modules. The actual operations performed by the specific controller module are dependent
more on the firmware employed than with the hardware utilized. Refer to the operation section of the
system manual for a total description of the 960 monitor's operation and the types of communications
provided for the specific application.
Module functions and applications are discussed in the following paragraphs. Table 1-1 compares the
960CD Modules. Table 1-2 lists communications loop connections to a minicomputer or safety related
display. Table 1-3 lists communications loop connections. Figure 1-2 illustrates standard minicomputer
communications. Figure 1-3 illustrates fiber optically isolated minicomputer communications with a control
room safety-related display. Figure 1-4 illustrates safety related display communications. Figure 1-5
illustrates an RS-232 interface to a Victoreen 977 Series Preamplifier/Electrometer. Figure 1-6 illustrates
safety related communications with an RS-232 Interface to a Victoreen 977 Series
Preamplifier/Electrometer.
Controller Module 960CD-220
The 960CD-220 Module is supplied with a Motorola 6809 microprocessor, 24K of RAM, 32K of EPROM,
and two Victoreen communication loops. Also integral to this module are decoder/drivers for a six-digit
panel display. The 960CD-220 Controller Module contains selected components necessary to operate in
applications where nuclear safety-related rated equipment is required. The installed components are all
rated Class IE quality.
Controller Module 960CD-221
The 960CD-221 Module is supplied with a Motorola 6809 microprocessor, 24K of RAM, 32K of EPROM,
two Victoreen communication loops and an RS-232C communications loop. Also integral to this module
are decoder/drivers for a six-digit panel display. The module is utilized when an RS-232C
communications loop with a 977 series Ion Chamber Detector or a 943-27-31 Current Mode Beta
Scintillation Detector is used in the 960 Radiation Monitoring System. The 960CD-221 Controller Module
contains selected components necessary to operate in applications where nuclear safety-related rated
equipment is required. The installed components are all rated Class IE quality.
Controller Module 960CD-222
The 960CD-222 Module is supplied with a Motorola 6809 microprocessor, 24 K of RAM, 32K of EPROM,
two Victoreen communication loops, and a receive only fiber optics link. The module is utilized as a
communications isolator in Class 1E radiation monitoring systems. The 960CD-222 Controller Module
contains selected components necessary to operate in applications where nuclear safety-related rated
equipment is required. The installed components are all rated Class IE quality.
Controller Module 960CD-223
The 960CD-223 Module is supplied with a Motorola 6809 microprocessor, 24K of RAM, 32K of EPROM, a
Victoreen communication loop, and a transmit only fiber optics link. Also integral to this module are
decoder/drivers for a six-digit panel display. The module is utilized as a communications isolator in the
Class 1E section of nuclear safety-related rated radiation monitoring systems. The 960CD-223 Controller
Module contains selected components necessary to operate in applications where nuclear safety-related
rated equipment is required. The installed components are all rated Class IE quality.
Display Module 960CD-200-15
The 960CD-200-15 Display Module is a six digit, seven-segment display board. The display board
receives decoder/driver inputs from a controller module and displays monitor data. The module is
designed to interface with all variations of the 960CD Controller Module. It is normally mounted on the
front panel of a local control unit. The 960CD-200-15 Display Module contains selected components
1-4
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