Milltronics PL-533 Manual de usuario
Technology based. Customer driven.
March 1997
Instruction Manual
PL-533
33455330
Rev 1.0
for Allen-Bradley Remote I/O
Interface Module
Thank you for purchasing Milltronics’ products. We endeavour to design equipment that
is simple to use and reliable in its operation, with the aim of satisfying our customers’ needs.
Milltronics has been designing and manufacturing process equipment since 1954. Our
fields of expertise include ultrasonic level measurement, in-line weighing of dry bulk solids
and motion sensing.
Milltronics is established world wide through associate offices and representatives. Our network
is continually being refined to provide our customers with first rate sales information, engineering
assistance and after sales support.
For more details on our products and service, please contact us and we will provide you with
a listing of the offices or representatives nearest you.
Canada : 1954 Technology Dr., P.O. Box 4225,
Peterborough, Ontario, Canada K9J 7B1
Tel.: 705-745-2431 Fax: 705-741-0466
U.S.A. : 709 Stadium Drive, Arlington, Texas U.S.A. 76011
Tel.: 817-277-3543 Fax: 817-277-3894
England : Oak House, Bromyard Road, Worcester, England WR2 5XZ
Tel.: 01905-748404 Fax: 01905-748430
France : Parc de la Sainte Victoire, Bât. 5, 13590 Meyreuil, France
Tel.: +33 4 42 65 69 00 Fax: +33 4 42 58 63 95
Belgium : August van de Wielelei 97, 2100 Deurne, Antwerp, Belgium
Tel.: 03/326 45 54 Fax: 03/326 05 25
Mexico : Amores No. 1155, Col. Del Valle, 03100 Mexico D.F., Mexico
Tel.: 575-31-44 / 575-83-13 / 575-27-78 Fax: 575-26-86
Internet : http://www.milltronics.com
TABLE OF CONTENTS ==================================================================
About this module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Physical
Hardware Set Up
Software Set Up
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Application Layer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Parameter Values
Numeric values
“Split values”
Text messages
Relay function codes
Block Transfers
Block Transfer Write
Block Transfer Read
Discrete I/O
Discrete Output Words
Discrete Input Words
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Generally…
Specifically…
3 PL-533
Milltronics SmartLink 3/31/97 1:16 PM Page 3
ABOUT THIS MODULE =================================================================
Milltronics SmartLinx module for Allen-Bradley is a ‘plug in’ communications circuit card
designed to interface any Milltronics SmartLinx compatible device to Allen-Bradley
Remote I/O.
The module may have been shipped installed in your unit, or shipped separate for site
installation. Refer to your associated Milltronics device instruction manual for details on
its location or physical installation.
SPECIFICATIONS ============================================================================
Electrical: compatible with any Milltronics SmartLinx compatible device and Allen-
Bradley Remote I/O
Physical: compatible with any Milltronics SmartLinx compatible device
Application: compatible with Allen-Bradley Remote I/O
Connection: 3-position terminal block for wire end
Termination: switch selectable, open or 82 Ωinternal
Cable: Belden 9463 ‘Blue Hose’ or equivalent
PL-533 4
Milltronics SmartLink 3/31/97 1:16 PM Page 4
INSTALLATION ================================================================================
PHYSICAL
Refer to associated Milltronics SmartLinx compatible device instruction manual for
location or installation of the module.
HARDWARE SETUP
SmartLinx module for Allen-Bradley Remote I/O
TERMINATION SWITCH
termination setting
open off
150 Ω external* off
82 Ωon
RESERVED SWITCH
setting
all on
CABLE CONNECTION
Connect using Belden 9463 ‘Blue Hose’ cable or equivalent and terminate (blue/clear)
according to Allen-Bradley specification and conventions.
5 PL-533
module connector (underside) to Milltronics device
reserved switches
status LEDs (refer to Operation)
termination
switch
cable connector
*termination resistor (as required)
clear
shield
blue
Milltronics SmartLink 3/31/97 1:16 PM Page 5
SOFTWARE SETUP
GENERAL
It is recommended to set up the Milltronics device as a 1⁄4 rack size, to conserve remote
rack space available to the PLC. As discrete I/O operation is very limited when using 1⁄4
rack size configuration, block transfer read and write commands are recommended.
Avoid discrete I/O as it does not provide any advantage over block transfers. (Transfer
speed is not an issue, as transfer rates are much greater than the rate where new
readings are generated by the Milltronics device.)
It is also recommended to exercise caution when deciding how often to trigger the BTR
and BTW instructions. Too often increases the delay of all block transfers on the
Remote I/O link. A recommended guideline is to trigger the BTR and BTW instructions
no faster than every 0.3 seconds.
SPECIFIC PARAMETERS
P751 baud rate
Sets the baud rate for Remote I/O communication between
Milltronics device and Allen-Bradley.
values: 0 = 57.6 kbaud
1 = 115.2 kbaud
2 = 230.4 kbaud
The default value is 0.
P752 rack number
Enter the rack number (octal) that the Milltronics device has been assigned
on the Remote I/O link. The valid range is 01 – 73. Check your PLC manual
for the supported range.
The default value is 2.
P753 starting group
Sets the starting group number for the Milltronics device.
starting group rack size (P754)
values: 0 1, 2, 3 or full
2 1, 2 or 3 /4
4 1 or 2 /4
6 1/4
The default value is 0.
PL-533 6
Milltronics SmartLink 3/31/97 1:16 PM Page 6
P754 rack size
Sets the discrete I/O address space. Valid settings are 1 to 4 quarter racks,
dependent upon the starting group (P753).
rack size starting group (P753)
values: 1/4 0, 2, 4 or 6
2/4 0, 2 or 4
3/4 0 or 2
full 0
The default value is 0.
P755 last rack
The last rack is defined as the highest numbered rack on the Remote I/O link.
Determine the position of Milltronics device and set this parameter
accordingly.
value: 0 = not last
1 = last
The default value is 0.
OPERATION =======================================================================================
Communication on the Remote I/O link is indicated by the SmartLinx LEDs.
on module is powered
off no communication between bus and module
flash bus intact, Allen-Bradley PLC in program; or
Milltronics device set to different rack size
than PLC
on active communication
on not being scanned by PLC
7PL-533
Milltronics SmartLink 3/31/97 1:16 PM Page 7
APPLICATION LAYER ===================================================================
The application layer is the name given to the organization and format of the discrete
I/O and block transfer communications areas of the Milltronics device . All transactions
between the PLC and the Milltronics device are either reading parameter values from
the Milltronics device, or setting parameter values in the Milltronics device.
This manual refers to a 10 point level instrument; if your device has fewer than 10
points, you should ignore data in registers which represent non-existing points. Those
registers will still be present, but will contain undefined values.
PARAMETER VALUES
The Milltronics device parameters take on many values in various formats, as discussed
in the Milltronics device manual. For the convenience of the PLC programmer, those
values are converted to and from a 16-bit integer number, since those are easily
handled by most PLCs. This section describes that conversion process; later sections
detail where those values are in discrete I/O and block transfer addresses, and how to
get the parameters you need.
Numeric values
Numeric parameter values are by far the most common. For example, parameter P920
(Reading), returns a number representing the current reading (either level or volume,
depending on the Milltronics device configuration).
Numeric values may be requested or set in either units or percent of span, and may be
specified with a number of decimal places.
Numeric values must be in the range -10,000 to +10,000 to be valid. If a parameter is
requested and its value is more than +10,000, the number 32,767 is returned; if it is less
than -10,000, the number -32,768 is returned. If this happens, increase the number of
decimal places for that parameter.
If a parameter cannot be expressed in terms of percent (e.g. span), or has no
meaningful value, the special number 22,222 is returned. Try requesting the parameter
in units, or refer to the Milltronics device manual to understand the requested
parameter.
“Split” Values
Certain parameters are actually a pair of numbers separated by a colon, in the format
xx:yy.
One example is P807, Transducer Noise, where:
xx = the average noise value in dB
yy = the peak noise in dB.
PL-533 8
Milltronics SmartLink 3/31/97 1:16 PM Page 8
The number which corresponds to xx:yy, either for reading or setting a parameter, is
determined by the following formula:
– for storing to the Milltronics device:
value = (xx + 128) x 256 + (yy + 128)
– for reading from the Milltronics device:
xx = (value / 256) - 128
yy = (value % 256) - 128
where % is the modulus operator. This can be computed by finding
the remainder of an integer divide-by-256.
It may simplify programming to notice:
xx = (most significant byte of value) - 128
yy = (least significant byte of value) - 128
Text messages
If an Milltronics device parameter returns a text message, that message is converted to
a corresponding number shown in the table below:
22222 invalid value
30000 off
30001 on
30002 ≡≡≡≡
30003 [ - - ]
30004 err
30005 err1
30006 open
30007 shrt
30008 pass
30009 fail
30010 hold
30011 lo
30012 hi
30013 de
30014 en
-32768 value is less than -10,000
32767 value is greater than 10,000
9PL-533
Milltronics SmartLink 3/31/97 1:16 PM Page 9
Relay function codes (parameter P111 only)
Relay function codes are represented by unique numbers.
.
OFF 0
ALARM 1
LL_ALARM 2
L_ALARM 3
H_ALARM 4
HH_ALARM 5
INSIDE_BAND 6
INSIDE_BAND_1 7
INSIDE_BAND_2 8
OUTSIDE_BAND 9
OUTSIDE_BAND_1 10
OUTSIDE_BAND_2 11
RATE_ALARM 12
RATE_ALARM_1 13
RATE_ALARM_2 14
TEMPERATURE_ALARM 15
LOE_ALARM 20
NON_SEQD 25 (for pump control)
UNKNOWN_MODE 200
PL-533 10
Milltronics SmartLink 3/31/97 1:16 PM Page 10
Tabla de contenidos
Otros manuales de Equipo de grabación de Milltronics
Manuales populares de Equipo de grabación de otras marcas
Strymon
Strymon NIGHTSKY Manual de usuario
Mitsubishi Electric
Mitsubishi Electric 16CH DIGITAL RECORDER DX-TL5000U Manual de usuario
Tews Technologies
Tews Technologies TPMC465 Manual de usuario
Honeywell
Honeywell Excel 50 Manual de usuario
SeaLevel
SeaLevel COMM+8.LPCI Manual de usuario
Arturia
Arturia AUDIOFUSE STUDIO Manual de usuario
