Aalborg i/o 232 Operating Manual Download Page 10

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

8

Summary of Contents for i/o 232

Page 1: ...COMMUNICATIONS TERMINALS OPERATING MANUAL I O SIGNAL CONDITIONER Technical Data Sheet No TD9809M Rev F Date of Issue December 9 2009 7 77172 727 132 844 278 03 48 473 204 51 73 343 384 55 89 843 206...

Page 2: ...E 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...

Page 3: ...ing 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...

Page 4: ...s 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 MIN...

Page 5: ...n 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...

Page 6: ...A 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 compatibilit...

Page 7: ...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 communication...

Page 8: ...alog 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 her...

Page 9: ...mmand 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...

Page 10: ...nd 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...

Page 11: ...tly Is the power supply correctly selected according to requirements When several meters are used a power supply with appropriate current rating should be selected Were the connector pinouts matched p...

Page 12: ...10 APPENDIX 1 Components Diagram NOTE Aalborg7 reserves the right to change designs and dimensions at its sole discretion at any time without notice For certified dimensions please contact Aalborg7...

Page 13: ...OTE Aalborg7 reserves the right to change designs and dimensions at its sole discretion at any time without notice For certified dimensions please contact Aalborg7 3 000 76 2 4 166 105 8 1 750 44 5 1...

Page 14: ...2 6 1 GFM HOST PC RS232 PORT Fig 1 Connection diagram GFM to I O232 5 9 4 8 3 7 2 6 1 COMMON 10 30 VDC RX TX OUT OUT IN IN 8 7 6 5 4 3 2 1 SIGNAL CONDITIONER 8 15 7 14 6 13 5 12 4 11 3 10 2 9 1 5 9 4...

Page 15: ...the liability of Aalborg and the provisions of this warranty Defective products will be repaired or replaced solely at the discretion of Aalborg at no charge Shipping charges are borne by the custome...

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