Aalborg I/o 232 Manuel utilisateur

CAUTION:

THIS PRODUCT DOES NOT PROVIDE GALVANIC ISOLATION. DO NOT ATTEMPT USE OF

THIS PRODUCT WHERE COMMON MODE VOLTAGES EXIST BETWEEN INPUTS, OUTPUTS,

POWER SUPPLY, OR THE SERIAL COMMUNICATIONS TERMINALS.

OPERATING MANUAL

I/O SIGNAL

CONDITIONER

Technical Data Sheet No. TD9809M Rev. F

Date of Issue: December 9, 2009

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TABLE OF CONTENTS

(a) UNPACKING THE I/O SIGNAL CONDITIONER................................

a.1 Inspect Package for External Damage.....................................

a.2 Unpack the Signal Conditioner...............................................

a.3 Returning Merchandise for Repair..........................................

(b) DESCRIPTION......................................................................

(d) SPECIFICATIONS..................................................................

d.1 General Attributes....................................................................

d.2 CE Compliance.........................................................................

(e) ELECTRICAL CONNECTIONS....................................................

e.1 Connector Pin Assignments....................................................

e.2 Jumper Assignments...............................................................

(f) PROGRAMMING..................................................................

(g) CALIBRATION PROCEDURES...................................................

g.1 Equipment Required for Calibration........................................

g.2 Calibration..............................................................................

(h) SELECTING THE MODE OF OPERATION.......................................

(i) COMMANDS......................................................................

(j) TROUBLESHOOTING GUIDE.....................................................

(k) TECHNICAL ASSISTANCE.......................................................

APPENDIX 1 COMPONENT DIAGRAM

APPENDIX 2 DIMENSIONS

APPENDIX 3 CONNECTION DIAGRAM FOR RS232 and RS485

APPENDIX 4 WARRANTY

(a) UNPACKING THE I/O SIGNAL CONDITIONER

a.1 Inspect Package for External Damage

Your I/O Signal Conditioner was carefully packed in a sturdy cardboard

carton, with anti-static cushioning materials to withstand shipping shock.

Upon receipt, inspect the package for possible external damage. In case

of external damage to the package contact the shipping company imme-

diately.

a.2 Unpack the I/O Signal Conditioner

Open the carton carefully from the top and inspect for any sign of con-

cealed shipping damage. In addition to contacting the shipping carrier

please forward a copy of any damage report to your distributor or Aalborg

directly.

When unpacking the instrument please make sure that you have all the

items indicated on the Packing List. Please report any shortages promptly.

a.3 Returning Merchandise for Repair

Please contact the customer service representative of your distributor or

Aalborg if you purchased your I/O directly, and request a Return

Authorization Number (RAN). Equipment returned without an RAN

will not be accepted. Aalborg reserves the right to charge a fee to the

customer for equipment returned under warranty claims if the instruments

are tested to be free from warrantied defects.

Shipping charges are borne by the customer. Items returned "collect"

will not be accepted!

It is mandatory that any equipment returned for servicing be purged and

neutralized of any dangerous contents including but not limited to toxic,

bacterially infectious, corrosive or radioactive substances. No work shall

be performed on a returned product unless the customer submits a fully

executed, signed SAFETY CERTIFICATE. Please request form from the

Service Manager.

(b) DESCRIPTION

This Signal Conditioner allows analog voltage levels to be set and read

via its RS-232 serial port. Commands are provided to perform various

functions: an analog output, read an analog input, verify the communica-

tions link, programming, and enter calibration mode.

The I/O is capable of operating in a voltage output mode or a current out-

put mode. When operating in the voltage mode the analog input and out-

put range is 0.00 to 5.00 volts. In the current mode the analog input and

output range is 4.00 to 20.0 milliamps. See Selecting the Operating Mode.

(d) SPECIFICATIONS

d.1 General Attributes

INPUT AND OUTPUT ANALOG RANGE: 0 - 5 Vdc or 4 - 20 mA, jumpers selectable.

INPUT OVERVOLTAGE/OVERCORRECT PROTECTION: 15 Vdc, 50 mA.

MINIMUM OUTPUT VOLTAGE COMPLIANCE IN 4-20 mA MODE: 8 Vdc.

MAXIMUM INPUT VOLTAGE DROP IN 4-20 mA MODE: 5 Vdc.

POWER SUPPLY REQUIREMENTS: 10 to 30 Vdc, less than 0.75 watts (OPTIONAL).

OPERATING TEMPERATURE RANGE: 0 FC to 70 FC.

ALTITUDE: to 10,000 feet.

DIGITAL VOLTAGE STANDARD: RS-232 or RS-485 (not galvanically isolated).

COMMUNICATIONS PARAMETERS: 8 bits, one stop bit no parity (N,8,1).

RS-232 COMMON MODE CAPABILITY: +10 volts.

RESOLUTION: 10 bits (0.1%).

DATA FORMAT: ASCII.

DATA TRANSFER RATE: 300 baud to 9600 baud.

MODULE CONNECTION METHOD: Pinch Type terminals.

d.2 CE Compliance

Any model I/O Signal Conditioner bearing a CE marking on it, is in com-

pliance with the below stated test standards currently accepted.

EMC Compliance with 89/336/EEC as amended;

Emission Standard: EN 55011:1991, Group 1, Class B

Immunity Standard: EN 55082 1:1992

Environmental (per IEC 664): Installation Level II; Pollution Degree II

(e) ELECTRICAL CONNECTIONS

e.1 Connector Pin Assignments

All connections are made at connector J1. This is a pinch type connector.

Insert a small flat blade screwdriver into the slot along the top of J1 and

press down. This will cause the pinch clamp to open allowing the stripped

wire to be inserted. Remove the screwdriver and the connection is made.

Pin 1 - Analog input from sensor IN+

Pin 2 - Analog input from sensor IN-

Pin 3 - Analog output to sensor OUT+

Pin 4 - Analog output to sensor OUT-

Pin 5 - Data output from module TX (-)

Pin 6 - Data input to module RX (+)

Pin 7 - Power supply input to module 10VDC - 30VDC

Pin 8 - Power supply return (GND)

Terminal Number Maximum Voltage VDC) Mode

voltage input

current input

(see note)

voltage output

current output

(see note)

RS-232

RS-485

RS-232

RS-485

733all

CAUTION: Exceeding the following voltages will cause device

failure and/or hazardous conditions to exist.



Note: The applicable terminals are utilized as outputs. Do not

apply any external voltage or current sources to these terminals.



The power input is protected by a 1A re-settable fuse. If a shorting con-

dition or polarity reversal occurs, the fuse will cut power to the flow trans-

ducer circuit. Disconnect the power to the unit, remove the faulty condi-

tion, and reconnect the power. The fuse will reset once the faulty condi-

tion has been removed.

e.2 Jumper Assignments

JP1 - Program mode jumper

Pins 1 and 2 select Run mode

Pins 2 and 3 select Program mode

JP3 - Input mode jumper

Pins 1 and 2 select 0 - 5VDC mode (factory default)

Pins 2 and three select 4 - 20 mA mode

JP2, JP4, JP5 - Output mode jumpers

Pins 1 and 2 select 0 - 5VDC mode (factory default)

Pins 2 and 3 select 4 - 20mA mode

(f) PROGRAMMING

Programming the module allows the user to set the communications baud

rate, module address and, whether to use error checking. Note that the

address is included only for compatibility with the RS-485 version of this unit.

Connect a dumb terminal or PC running a communications program,

such as Procomm, to the unit.

RS232 APPLICATION:

Connect the unit TX line to the terminal RX line, connect the unit RX line

to the terminal TX line. Connect the I/O GND (pin 8) to SG Terminal.

CAUTION: Make sure power is OFF when connecting or

disconnecting any cables in the system.



CAUTION: Improper setting of jumpers may result in incorrect

operation of the unit and could cause damage to the connected

equipment.



Note: All I/O conditioners are programmed on the factory by

default settings: address 1, baud rate 9600, and error checking

OFF.



RS485 APPLICATION:

Make sure RS485 Terminal Equipment (RS-485 to RS232 Converter) is con-

figured for bidirectional Multi drops Two-Wire Half-Duplex operation (TX+ is

connected to RX+ and TX- is connected to RX-). Connect the unit TX(-) line

(pin 5) to the terminal TX- line, connect the unit RX+ line (pin 6) to the termi-

nal TX+ line. Connect the I/O GND (pin 8) to terminal GND (if applicable).

To program the module remove power from the unit and install the short-

ing plug on jumper JP1 between pins 2 and 3.

Apply power to the unit and follow the on screen instructions. When pro-

gramming is completed turn the unit off, place the shorting plug on jumper

JP1 on pins 1 and 2 to return the module to run mode, the new settings will

take affect when the unit is powered on. The initial power on defaults are

9600 baud, 8 data bits, 1 stop bit, no parity, error checking off, address 0.

(g) CALIBRATION PROCEDURE

g.1 Equipment Required for Calibration

You will need a 3-1/2 digit DMM set to the selected analog output range

(see Selecting Operating Mode), a power supply and, a dumb terminal or

PC running a communications program, such as Procomm.

g.2 Calibration

Connect the dumb terminal or PC.

RS232 APPLICATION: Connect the unit TX line to the terminal RX line,

connect the unit RX line to the terminal TX line. Connect the I/O GND (pin

8) to the SG line terminal.

RS485 APPLICATION: Make sure RS485 Terminal Equipment (RS-485

to RS232 Converter) is configured for bidirectional Multi drops Two-Wire

Half-Duplex operation (TX+ is connected to RX+ and TX- is connected to

RX-). Connect the unit TX(-) line (pin 5) to the terminal TX- line, connect

the unit RX+ line (pin 6) to the terminal TX+ line. Connect the I/O GND

(pin 8) to terminal GND (if applicable).

Apply power to the I/O, issue the calibrate command and follow the on

screen instructions. See Host C command for format.

Note: All I/O conditioners are calibrated on the factory for

0 - 5V mode. Usually it is not necessary to calibrate unit,

unless 4 to 20 mA mode is required.



(h) SELECTING THE MODE OF OPERATION

Before operating in the desired mode the I/O has to be calibrated in the

same mode.

To set the unit to operate in 0 - 5V mode install shorting plugs between

pins 1 and 2 on JP2, JP3, JP4 and, JP5. If 4 - 20mA current mode is

desired install the shorting plugs between pins 2 and 3 on JP2, JP3, JP4

and, JP5. See Jumper Definitions for more detail.

(i) COMMANDS

The following is a list of the valid commands, command format and, unit

response.

Host Command format:

> address command X X X X crc CR

Where: > message start character

Address unit address is any single printable ASCII

command character one of the commands from below

X X X X optional four ASCII characters, used by the unit to set

the analog output

crc optional error checking characters, the crc is composed

of two ASCII characters

CR ASCII carriage return character

There are no spaces in the transmitted command, spaces are inserted here only to

make the command easier to read. If a crc is not used it is not sent in the com-

mand line. Commands sent by the host are preceded with a start character sym-

bol, >. All commands are terminated with a CR. If data bytes are not required by

the command they are not included in the command line.

I/O Module Response format:

# X X X X X crc CR

Where: # message start character

command one of the commands listed below

X X X X X up to five ASCII characters, used to report

the analog input of the unit back to the host

crc optional error checking characters, the crc is

composed of two ASCII characters

CR ASCII carriage return character

There are no spaces in the transmitted response, spaces are inserted here only to

make the response easier to read. If a crc is not required it is not sent in the

response line. Responses sent by the I/O Module are preceded with a start char-

acter symbol, #. All responses are terminated with a CR. Only the number of data

bytes required by the response are sent. Leading zeroes are stripped.

Host S Command:

S or s - This command queries the I/O Module for its communication status.

If the communications line is intact the I/O Module responds to the host

with an “OK”.

An example of a valid command to a unit with address M:

> M S crc CR

> M s crc CR

The reply format is:

#OK crc CR

If the command is not recognized, the I/O Module responds with “Bad Command”.

An example of an invalid command:

> M x crc CR

The reply format is:

#Bad Command crc CR

If the command is not received no response is sent.

Host T Command:

T or t - This command tells the I/O Module to transmit its current reading. Up

to five ASCII characters are sent by the I/O Module. The returned data is in

millivolts if the module is operating in a 0 - 5V mode. If the module is

operating in a 4 - 20mA mode the data is in microamps.

An example of a valid command to a unit with address 5:

> 5 T crc CR

> 5 t crc CR

The reply format is:

#1000 crc CR which corresponds to 1000 mV

#19500 crc CR which corresponds to 19500uA

If the command is not recognized “Bad Command” is returned.

An example of an invalid command to a unit with address 5:

> 5 x crc CR

The reply format is:

#Bad Command crc CR

If the command is not received no response is sent. The module returns the ana-

log input data if the command was received and understood.

Host R Command:

R or r - This command tells the I/O Module to receive a new set point. Four

characters must be sent and one of these characters is always a decimal point.

If the set point does not fill all four characters trailing zeroes are added. A crc

is added if error checking is enabled, otherwise it is not sent. If the command

is not recognized “Bad Command” is returned.

An example of a valid command to a unit with address >:

> > R 1.00 crc CR

> > r 1.00 crc CR

An example of an invalid command to a unit with address r:

> r W 1.00 crc CR

The reply format is:

#Bad Command crc CR

If the command is not received no response is sent. The module sends “OK”

if the command was received and understood.

The reply format is:

#OK crc CR

Host C Command:

C or c - This command tells the I/O Module to enter calibration mode.

Calibration instructions are sent to the terminal display. See Calibrating the I/O

Module for calibration procedure. If the command is received and understood

the unit enters calibration mode.

An example of a valid command to a unit with address @:

> @C crc CR

> @c crc CR

If the command is not recognized “Bad Command” is returned.

An example of an invalid command to a unit with address @:

> @q crc CR

The reply format is:

#Bad Command crc CR

Host G Command:

G or g - This command tells the I/O Module to accept a global command. This

is included for compatibility with the RS-485 version of this unit. The syntax is

the same as the R command except the address is 0 and no response is sent

by the module.

An example of a valid command is:

> 0 G crc CR

> 0 g c crc CR

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