CIO-RELAY08
CIO-RELAY16
CIO-RELAY24
CIO-RELAY32
(standard and /M versions)
User’s Guide
Revision 6
August, 2001
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HM CIO-RELAY##.lwp
Table of Contents
1 INTRODUCTION
2 INSTALLATION
2.1 SOFTWARE INSTALLATION
3 HARDWARE INSTALLATION
..............................................
...............................................
..............................
.................................
3.1 Mercury (/M) board special considerations
3.2 BASE ADDRESS
3.3 WAIT STATE
4 PROGRAMMING
...........................................
..............................................
..............................................
4.1 DIRECT I/O REGISTER PROGRAMMING
4.2 PROGRAMMING NOTES
..................................
4.3 DETAILED RELAY CONTROL I/O MAP
5 CONNECTING TO RELAYS
5.1 I/O CONNECTOR DIAGRAMS
...................................
..............................
5.2 FORM C RELAYS (standard versions)
5.3 FORM A RELAYS (/M versions)
6 SPECIFICATIONS
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............................
.....................
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1
2
2
3
3
3
4
5
5
6
6
8
8
10
10
12
126.1.1 CIO-RELAY08, 16, 24 and 32 (standard versions) ...............
126.1.2 MERCURY WETTED (/M) VERSIONS .........................
This page is blank.
1 INTRODUCTION
The CIO-RELAY16 is a 16-channel relay interface board f or ISA bus computers.
The board prov ides 16, Form-C (SPDT) relays. The CIO-RELAY08 board i s
identical to the RELAY16 board ex cept that only eight relays are installed. The
CIO-RELAY32 is two CIO-RELAY16s on a single board while the CIO-RELAY24
is a CIO-RELAY32 with only 24 relays installed.
The /M versions (e. g. CIO-RELAY16/M or CIO-RELAY08/M) are identical to the
standard versions, but use Mercury wetted relays. They offer quicker switching
times, less contact bounce and lower on-resistance than the standard models. The
CIO-RELAY16 family has been designed for control applications where a f ew
points of high voltage (or current) need to be controlled.
WARNING!
High voltages will be pr esent on the CIO-RELAY16 family boar ds when high
voltage is connected to the C IO-RELAY16 connector. Use extreme caution! N ever
handle the CIO-RELAY16 when signals are connected to the board through the
connector.
DO NOT REMOVE THE PROTECTIVE PLATES FROM THE CIO-RELAY16!
The CIO-RELAY16 family are d igital I/O b oards with relay-based signal
conditioning installed. Most accessory boards are intended to provide signal
conditioning or easy to access signal termination. In general, the CIO-RELAY16
will not require additional signal conditioning.
WARNING
We STRONGLY recommend that under no circumstance should a screw terminal
board be used to connect high vo ltages to the CIO-RELAY16 series board. The
CIO-RELAY16 is intended to control high voltages. If you use a screw terminal
board you will expose yourself and others to those high voltage signals.
We recommend that you construct a saf e cable to carry your signals directly from
your equipment to the CIO-RELAY16 connector.
NOTE: The Mercury wetted boards must be mounted in the computer such that they
will remain within 30 degrees of vertical.
Installation of these boards in most tower computer cases will require the tower be
rested on its side for proper operation of the mercury relays.
1
2 INSTALLATION
The installation and operation of all four CIO-RELAY series boards is very similar.
Throughout this manual we use CIO-RELAY as a generic designation for the
CIO-RELAY08, CIO-RELAY16, CIO-RELAY24, and CIO-RELAY32. When
required, due to the differences in the boards, the specific board name is used. The
CIO-RELAY boards are easy to use. T hese procedure will help you quickly and
easily setup, install and test your board. We assume you already know how to open
the PC and install expansion boards. If you are unf amiliar or uncomfortable with
board installation, please refer to your computer’s documentation.
We recommend you perform the software installation described in the following
TM
sections prior to installing the board in your computer. The Insta
Cal
operations
below will show you how to properly set the switches and jumpers on the board
prior to physically installing the board in your computer.
2.1 SOFTWARE INSTALLATION
The board has a variety of switches and jumpers to set before installing the board in
your computer. The simplest way to configure your board is to u se the InstaCal
program provided on the CD (or floppy disk)
.
InstaCal will show you all available options, how to configure the various switches
and jumpers (as applicable) to match your application requirements. It will create a
configuration file that y our application software (and the Universal L ibrary) will
refer to so the software you use will automatically have access to the exact
configuration of the board.
Please refer to the Extended Software Installation Manual regarding the installation
and operation of InstaCal. The following hard copy information is provided as a
matter of completeness, and will allow you to set the hardware configuration of the
board if you do not have immediate access to InstaCal and/or your computer.
TM
2
3 HARDWARE INSTALLATION
3.1 MERCURY (/M) BOARD SPECIAL CONSIDERATIONS
The Mercury wetted boards must be m ounted in the computer such that they will
remain within 30 degrees of vertical.
NOTE: Installation of these boards in most tower computer cases will require the
tower be rested on its side for proper operation of the mercury relays.
3.2 BASE ADDRESS
The base address switch controls the I/O location where the CPU can access the
registers of the CIO-RELAY board. The factory default is 300h (768D). If you have
a board installed at address 300h, you will have to choose a new address from those
available on your computer. You may use the list of PC I/O address assignments
found on the following page and add notes about the b oards you have installed in
your computer. Choose a new base address f rom those available and set th e switch
using the guide below.
NOTE: The switch shown below in Figure 3-1 is for the CIO-RELAY08 and
CIO-RELAY16 boards. Since the CIO-RELAY32 and CIO-RELAY24 board
require four I/O addresses, their
base address switch does not
provide switch #2. All other
settings are identical.
If address 300h is available on your
computer, we recommend that you
select it for your board. The
software examples are written for
base = 300h.
Figure 3-1. Base Address Switches -
3
FUNCTIONHEX
RANGE
070-071
CMOS RAM & NMI MASK (AT)
3.3 WAIT STATE
Table 3-1. PC I/O Addresses
FUNCTIONHEX
RANGE
EGA2C0-2CF8237 DMA #1000-00F
EGA2D0-2DF8259 PIC #1020-021
GPIB (AT)2E0-2E78253 TIMER040-043
SERIAL PORT2E8-2EF8255 PPI (XT)060-063
SERIAL PORT2F8-2FF8742 CONTROLLER (AT)060-064
PROTOTYPE CARD300-30F
PROTOTYPE CARD310-31FDMA PAGE REGISTERS080-08F
HARD DISK (XT)320-32F8259 PIC #2 (AT)0A0-0A1
PARALLEL PRINTER378-37FNMI MASK (XT)0A0-0AF
SDLC380-38F8237 #2 (AT)0C0-0DF
SDLC3A0-3AF80287 NUMERIC CO-P (AT)0F0-0FF
MDA3B0-3BBHARD DISK (AT)1F0-1FF
PARALLEL PRINTER3BC-3BFGAME CONTROL200-20F
EGA3C0-3CFEXPANSION UNIT (XT)210-21F
CGA3D0-3DFBUS MOUSE238-23B
SERIAL PORT3E8-3EFALT BUS MOUSE23C-23F
FLOPPY DISK3F0-3F7PARALLEL PRINTER270-27F
SERIAL PORT3F8-3FFEGA2B0-2BF
There is a wait state jumper on CIO-RELAY series boards. The factory default is
wait state d isabled. You will probably never need the wait state because PC
expansion slot busses are limited to 8 or 10 MHz.
If you were to get intermittent operation from your CIO-RELAY board, you can try
enabling the wait state to see if that solves the problem.
4
4 PROGRAMMING
The CIO-RELAY boards are easy to program. From one to f our eight-bit registers
are written to control relays or can be read to determine the state of relays.
In addition to direct I/O programming, the boards are f ully supported by the
powerful Universal Library program as well as most third-party application
programs.
4.1 DIRECT I/O REGISTER PROGRAMMING
The CIO-RELAY family uses between one and four I/O addresses. Each address
controls eight relay s. Relays are co ntrolled by writing to these register(s). T he
address map of the CIO-RELAY boards is shown below.
BASE ADDRESS Relays 0-7 Read/Write (All CIO-RELAY boards
BASE + 1 Relays 8-15 Read/Write (CIO-RELAY16, -24, -32)
BASE + 2 Relays 16-23 Read/Write (CIO-RELAY24, -32)
BASE + 3 Relays 24-31 Read/Write (CIO-RELAY32 only)
The registers are written to and read from as a single, 8-bit byte. Each bit controls an
output to a relay (write) or represents the state of a relay (read).
All registers are read left to right. The leftmost bit (the eighth bit) being the most
significant bit. Following this format, bit seven (OP7) of BASE + 0 corresponds to
relay number 7 and bit 0 to relay number 0.
To construct a control word, use Table 4.1 for bit weights.
Table 4-1. Bit Weights
HEX VALUEDECIMAL VALUEBIT POSITION
110
221
442
883
10164
20325
40646
801287
For example, to assemble the control byte that will turn on relays 0, 1, 3, 5, and 7,
we see in Table 4-2 that we need to write HEX AB or decimal 171.
5
Table 4-2. Sample Coding to Turn ON Relays 0, 1, 3, 5, & 7
DECIMALWEIGHTON=1HEXRELAY
Totals AB 171
ON=1
WEIGHT
128112880180OP7
00640040OP6
32132201200P5
00160010OP4
818818OP3
004004OP2
212212OP1
111111OP0
4.2 PROGRAMMING NOTES
WRITE = CONTROL: Write a byte to the register to control the relays. A one in the
relay bit position turns the relay on.
READ = STATUS: Read the status of the relay control register. A one in the relay
bit position indicates the relay is on.
ON & OFF for FORM C RELAYS:
ON means that FORM C relay common terminal is in contact with the No rmally
Open contact.
OFF means that FORM C relay common terminal is in contact with the no rmally
closed contact.
4.3 DETAILED RELAY CONTROL I/O MAP
The following section provides a detailed description of the register map and relay
control registers.
Base Address +0
RELAY OP7 OP6 OP5 OP4 OP3 OP2
BIT No.
HEX Value
DECIMAL
80 40 20 10 8 4 2 1
128 64 32 16 8 4 2 1
(applicable to all CIO-RELAY series boards).
OP1 OP0
7 6 5 4 3 2 1 0
6
Base Address + 1
(applicable to CIO-RELAY16, -24, and -32 only).
RELAY OP
BIT No.
HEX Value
DECIMAL
15 OP14 OP13 OP12 OP11 OP10 OP9 OP8
7 6 5 4 3 2 1 0
80 40 20 10 8 4 2 1
128 64 32 16 8 4 2 1
Base Address + 2
RELAY OP
BIT No.
HEX Value
DECIMAL
23 OP22 OP21 OP20 OP19 OP18 OP17 OP16
7 6 5 4 3 2 1 0
80 40 20 10 8 4 2 1
128 64 32 16 8 4 2 1
Base Address + 3
RELAY OP
BIT No.
HEX Value
DECIMAL
31 OP30 OP29 OP28 OP27 OP26 OP25 OP24
7 6 5 4 3 2 1 0
80 40 20 10 8 4 2 1
128 64 32 16 8 4 2 1
(applicable to CIO-RELAY24, and -32 only).
(applicable to CIO-RELAY32 only).
7
5 CONNECTING TO RELAYS
5.1 I/O CONNECTOR DIAGRAMS
The CIO-RELAY08 and CIO-RELAY16 boards use a s ingle 50-pin connector for
signal interfacing. The CIO-RELAY24 and CIO-RELAY32 use two, 50-pin
connectors. The pin-outs of the connectors are shown in Figures 5-1 through 5-4.
Figure 5-1. CIO-RELAY08 & 16 Figure 5-2. CIO-RELAY08/M & 16/M
Connector Connector
PINS corresponding to relays 8 through 15 are not connected on the RELAY08
version (Figure 5-1).
NO
and
COM
Note that the form A relays used on the /M versions have
connections only (Figure 5-2).
WARNING!
High voltages will be present on the CIO-RELAY boards when you have connected
high voltage inputs or outputs to the CIO-RELAY connector. Use extreme caution!
Never handle the CIO-RELAY board when high voltage signals are connected to it.
DO NOT REMOVE THE PROTECTIVE PLATES FROM THE BOARD .
8
Figure
5-3.
CIO-RELAY24 & 32 Figure 5-4. CIO-RELAY24/M & 32M
Connector Connector
The CIO-RELAY24 & 32 connector (Figure 5-3) is the center of the board.
The connector for relays 0 through 15 is closest to the computer back-plate.
The Form-A relays of the /M versions have NO and COM connections only
(Figure 5-4).
NOTE: Pins for relays 24 through 31 are open on the CIO-RELAY24 & -24/M
versions.
WARNING!
High voltages will be present on the CIO-RELAY boards when you have connected
high voltage inputs or outputs to the CIO-RELAY connector. Use extreme caution!
Never handle the CIO-RELAY board when HV signals are connected to the board.
DO NOT REMOVE THE PROTECTIVE PLATES FROM THE BOARD.
9
5.2 FORM C RELAYS (STANDARD VERSIONS)
Figure 5-5 is the schematic for a Form-C relay as used on the standard
CIO-RELAY08, -16, -24 and -32 boards.
The Form-C relay has a COMMON (COM), a normally open (NO), and a normally
closed (NC) contact. When a 0 is written to an output (OPn), the common and NC
are in contact. When a “1” is written to an output (OPn), the common and NO are in
contact.
Figure 5-5. Form C Relay
5.3 FORM A RELAYS (/M VERSIONS)
Figure 5-6 is the schematic for a Fo rm-A relay as used on mercury wetted (/M)
models.
A Form-A relay has COMMON (COM) and normally open (NO) con nections.
When a “0” is written to the output, the common and NO are disconnected. When a
“1” is written to the output (OPn), the common and NO are in contact.
Figure 5-6. Form A Relay
10
6 SPECIFICATIONS
6.1.1 CIO-RELAY08, 16, 24 and 32 (standard versions)
POWER CONSUMPTION
+5V supply 510 mA typical plus 22 mA per active (on) relay
GENERAL SPECIFICATIONS
Number 8, 16, 24, or 32
Contact arrangement Form C (SPDT)
Contact rating 3A @ 120VAC or 28VDC resistive
Contact type Gold-overlayed silver
Contact resistance 100 milliohms max.
Operate time 20 milliseconds
Release time 10 milliseconds max.
Life expectancy 10 million mechanical operations minimum
ENVIRONMENTAL
Vibration 10 to 55 Hz (Dual amplitude 1.5mm)
Shock 10G (11 milliseconds)
Dielectric isolation 500V (1 minute)
Life Expectancy 1 Million Operations Electrical
100,000 Operations @ Full Load
6.1.2 MERCURY WETTED (/M) VERSIONS
POWER CONSUMPTION
CIO-RELAY 510 mA + (22 mA per activated relay max)
GENERAL SPECIFICATIONS
Number 8 /16
Contact arrangement Form A (SPST)
Contact rating 50 Watts @ 1 Amp or 500VDC resistive
Contact type Mercury wetted
Contact resistance 50 milliohms max.
Operate time 2 milliseconds
Release time 2 milliseconds max.
Dielectric isolation 500V (1 minute)
Life Expectancy 107 Operations (Full Load)
11
ENVIRONMENTAL
Operating temperature 0 to 70 °C
Storage temperature -40 to 100 °C
Humidity 0 to 90% non-condensing
Weight 8 oz.
NOTE: The Mercury wetted boards must be mounted in the computer such that they
will remain within 30 degrees of vertical.
Installation of these boards in most tower computer cases will require the tower be
rested on its side for proper operation of the mercury relays.
12
For Your Notes
13
For Your Notes
14
EC Declaration of Conformity
We, Measurement Computing Corp., declare under sole responsibility that the
product:
8, 16, 24 or 32 channel relay boardCIO-RELAY##
DescriptionPart Number
to which this declaration relates, meets the essential requirements, is in conformity
with, and CE marking has been applied according to th e relevant EC Directives
listed below using the relevant sectio n of the f ollowing EC stand ards and other
normative documents:
EU EMC Directive 89/336/EEC: Essential req uirements relating to
electromagnetic compatibility.
EU 55022 Class B: Limits and methods of measurements of radio interference
characteristics of information technology equipment.
EN 50082-1: EC generic immunity requirements.
IEC 801-2: Electrostatic discharge requirements for industrial process measurement
and control equipment.
IEC 801-3: Radiated electromagnetic field requirements for industrial process
measurements and control equipment.
IEC 801-4: Electrically fast transients for industrial process measurement and
control equipment.
Carl Haapaoja, Director of Quality Assurance
Measurement Computing Corporation
10 Commerce Way
Suite 1008
Norton, Massachusetts 02766
(508) 946-5100
Fax: (508) 946-9500
E-mail: info@mccdaq.com
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