Omega Engineering Omega CN8240 User's Manual

Omega Engineering Omega CN8240 User's Manual
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CN8240 & CN8260 Series Communications & Options
omega.com
®
TM
®
www.omega.com
e-mail: [email protected]
CN8240 &
CN8260
SERIES
Communications &
Options Guide
User’s Guide
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CN8240 & CN8260 Series Communications & Options
omega.com
TM
®
®
OMEGAnet ® On-Line Service
www.omega.com
Internet e-mail
[email protected]
Servicing North America:
Canada:
976 Bergar
Laval (Quebec) H7L 5A1
Tel: (514) 856-6928
FAX: (514) 856-6886
e-mail: [email protected]
USA: ISO 9001 Certified
One Omega Drive, Box 4047
Stamford CT 06907-0047
Tel: (203) 359-1660
FAX: (203) 359-7700
e-mail: [email protected]
For immediate technical or application assistance:
USA and Canada:
Sales Service: 1-800-826-6342 / 1-800-TC-OMEGA®
Customer Service: 1-800-622-2378 / 1-800-622-BEST ®
Engineering Service: 1-800-872-9436 / 1-800-USA-WHEN®
TELEX: 996404 EASYLINK: 62968934 CABLE: OMEGA
Mexico:
Tel: (001) 800-826-6342
FAX: (001) 203-359-7807
~ol: (001) 203-359-7803
En Espan
e-mail: [email protected]
Servicing Europe:
Benelux:
Postbus 8034, 1180 LA Amstelveen
The Netherlands
Tel: (31) 20 6418405 FAX: (31) 20 6434643
Toll Free in Benelux: 0800 0993344
e-mail: [email protected]
Germany/Austria:
Daimlerstrasse 26, D-75392
Deckenpfronn, Germany
Tel: 49 (07056) 3017 FAX: 49 (07056) 8540
Toll Free in Germany: 0800 TC-OMEGASM
e-mail: [email protected]
Czech Republic:
Rudé armády 1868, 733 01 Karviná 8
Tel: 420 (69) 6311899 FAX: 420 (69) 6311114
Toll Free: 0800-1-66342 e-mail: [email protected]
United Kingdom: ISO 9002 Certified
One Omega Drive
River Bend Technology Centre
Northbank, Irlam
Manchester M44 5EX England
Tel: +44 (0)161 777 6611
FAX: +44 (0)161 777 6622
Freephone: 0800-488-488
e-mail: [email protected]
France:
9, rue Denis Papin, 78190 Trappes
Tel: (33) 130-621-400 FAX: (33) 130-699-120
Toll Free in France: 0800-4-06342
e-mail: [email protected]
It is the policy of OMEGA to comply with all worldwide safety and EMC/EMI regulations that apply. OMEGA is constantly pursuing certification
of its products to the European New Approach Directives. OMEGA will add the CE mark to every appropriate device upon certification.
The information contained in this document is believed to be correct, but OMEGA Engineering, Inc. accepts no liability for any errors it contains,
and reserves the right to alter specifications without notice.
WARNING: These products are not designed for use in, and should not be used for, patient-connected applications.
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CN8240 & CN8260 Series Communications & Options
Table of Contents
For information and instructions related to basic operations, refer to the CN8240/CN8260
operator’s manual supplied with your controller.
Option Wiring Diagrams
Alarm Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
24 Volt DC Alarm Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Relay, N.O. Alarm Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
RS-232 Communications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
RS-485 Communications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Transducer Excitation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Auxiliary Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Remote Analog Setpoint . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Guide to Digital Communications
Remote Communications Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Omega+ Protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
• Message Formats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-8
• Sample Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9, 10
• Request Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-13
• Response Messages. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13-15
• Communications Parameter List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15-21
• Auxiliary Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22, 23
• Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24-26
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CN8240 & CN8260 Series Communications & Options
Relay, N.O.
Alarm Output
Option -AL1, -AL2: Relay, N.O. Alarm Output
OUTPUT 2
+
N.O.
2
–
C
3
+
Load
5 amp fuse
Supply voltage*
23
24
12
13
N.O.
4
14
N.O.
5
15
16
ALARM 1
Load
5 amp fuse
C
6
N.O.
7
17
C
8
18
ALARM 2
Supply voltage*
L1
120-250 V
50-60 Hz
L2
9 21
19
22
1
0
2
0
Option Description: NO (Normally open) relay contact is closed when either alarm is active. The relay life is greater
than 100,000 operations at 5 operations per second switching full load.
*Connect load and supply voltage per the following table:
Load Type
5 A Voltage Limit
Resistive dc
30 Vdc
Inductive ac (L/R = 7 ms)
20 Vdc
Resistive ac
250 Vac
Inductive ac (pF = 0.4)
150 Vac
Motor, ac, 1/6 hp
250 Vac
Tungsten Lamp, 360 W
120 Vac
RS-232
Communications
Option -C2: RS-232 (one-to-one) Communications
RCV
B(-)
RCV
1
1
1
2
3
SIG GND
RS 232
SIGSIG
GND
GND RS 485
XMT
A(+)
XMT
23
24
12
13
Option Description: Provides a one-to-one connection between the controller and an RS-232 port. Computers,
PLCs, or dumb terminals may be used to set and access controller data.
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CN8240 & CN8260 Series Communications & Options
RS-485
Communications
Option -C4: RS-485 (one-to-many) Communications
RCV
B(-)
B(-)
XMT
A(+)
A(+)
23
24
JMP 1
1
1
1
2
SIG GND
RS 232
SIG SIG
GND
GND RS 485
12
3
13
4
14
Option Description: Provides one-to-many communications.
Terminate the controller furthest from the computer by either connecting a 120-ohm, 1/4-watt resistor between terminals 23 and 24 or using jumper 1 located on the underside of the communications board as shown above.
Transducer
Power Supply
Options -XP1, -XP2, -XP3, -XP4: Transducer Power Supply
12
3
13
4
14
5
15
6
16
7
17
8
18
9 21
1
0
19
22
2
0
–
T/C
+
RTD
– MA
MV
V
SENSOR
INPUT
+
NOTE: FOR 2 WIRE RTD
JUMPER 18 & 20
0 to1 volt out = 0 to100% RH
(6 to 30 Vdc input)
Option Description: The transducer power supply option provides power to remote transducers. The transducer
outputs, in turn, provide a signal to the controller input which can be scaled in the appropriate engineering units.
Option -XP1: 15 Vdc
Option -XP2: 12 Vdc
Option -XP3: 10 Vdc
Option -XP4: 5 Vdc
All options will provide at least 20 mA. The transducer circuitry is thermally protected from short circuits.
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CN8240 & CN8260 Series Communications & Options
Process Output
Options -PVSV1, -PVSV2: Process Output
2
23
3
24
4
14
5
15
6
16
7
17
8
9 21
1
0
Connect jumper between pins 16 and
17 for option -PVSV2
12
13
Option PVSV2
(0-5 V)
Option -PVSV1
(4-20 mA)
18
19
22
–
T/C
2
0
+
RTD
– MA
MV
V
SENSOR
INPUT
+
NOTE: FOR 2 WIRE RTD
JUMPER 18 & 20
Option Description: The Setpoint Variable or Process Variable is transmitted to a remote device (chart recorders,
indicators, data recorders, computers, process controllers, etc.) with 1 of 2 different interfaces:
Option -PVSV1: 4-20 mA
Option -PVSV2: 0-5 V
The output signal is scalable in the Auxiliary Output Menu. Multiple remote indicators may be driven by the controller.
For current (mA) options, the remote indicators are connected in series. The sum of the input resistance for all
remote indicators must be less than 400 ohms. For voltage options, the remote indicators are connected in parallel.
The sum of the currents for all remote indicators must be less than 10 mA.
Remote
Setpoint Options
Options -DIC, -RSP4, -RSP5, -RSP6, -RSP7: Remote Setpoint
Option -DIC
Options -RSP4, -RSP5, -RSP6, -RSP7
24
12
13
14
15
1
}
0-5 V/1-5 V/0-10 V
0-20 mA/4-20 mA
Enable
Switch
24
12
4
14
13
5
15
6
16
7
17
14
10K
15
16
16
17
17
Remote analog setpoint
(voltage/current input)
→
1
8
CW
9 21
Remote analog setpoint
(potentiometer with
enable switch)
Enable
Switch
18
19
22
–
T/C
RTD
– MA
MV
V
SENSOR
INPUT
Switch input only
Option Description: Remote setpoints use either voltage or current inputs, depending on the specified option:
Option -DIC: Switch Input Closed
Option -RSP4: 0-5 Vdc
Option -RSP5: 1-5 Vdc
Option -RSP6: 0-20 mA
Option -RSP7: 4-20 mA
The input signal is scalable in the Remote Analog Setpoint Menu. Activation of the analog setpoint causes the F1
indicator to illuminate. For current (mA) options, the input resistance is 255 ohms. For voltage input options, the
input resistance is greater than 10K ohms. Note: Switch input option -DIC is active when switch is closed. The digital
input option menu
controls the programming of this switch.
*Ground shield at one end, taking care not to run wires next to power circuitry. Maximum length will be determined
by noise performance.
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CN8240 & CN8260 Series Communications & Options
omega.com
®
®
CN8240/CN8260 Series
Controllers
with
Digital
Communications
Option
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CN8240 & CN8260 Series Communications & Options
Digital
Communications Option
Remote Communications Options
RS-232
This method allows bidirectional data transfer via a three-conductor cable consisting of signal ground, receive input
and transmit output. It is recommended for communication distances less than 50 feet between the computer terminal and the instrument. Note: Multiple instruments cannot be connected to the same port.
The RS232 port is optically isolated to eliminate ground loop problems. Typically, “Data Out” of the computer/
terminal connects to the “RCV” terminal. “Data In” connects to the “XMT” terminal. If shielded cable is used, it
should be connected to the frame ground at one end only. Signal ground is to be connected at appropriate ground
terminals (refer to wiring diagram on bottom of this page).
RS-485
The RS485 multipoint capability allows up to 32 controllers to be connected together in a half-duplex network or up
to 100 controllers with an appropriate communications repeater.
This method allows bidirectional data transfer over a twisted pair cable. The twisted pair cable is a transmission line;
therefore, terminating resistors are required at the most distant ends of the line to minimize reflections (typically 120
ohms at each end). The RS485 circuit is fully optically isolated, eliminating ground loop problems. Parallel drops
from the transmission lines should be kept as short as possible; however, the line may be daisy-chained at each
controller. The polarity of the line is important and each device will specify an “A” (+) and “B” (-) connection.
Figure 1. Wiring diagram for digital communications.
DIGITAL COMMUNICATIONS
RCV
B(-)
XMT
A(+)
23
24
3
RS 232
RS 485
1
1
1
2
SIG GND
SIG GND
12
13
4
14
5
15
6
16
Three remote communications options are available for the CN8240/CN8260 which allow interfacing to remote
devices utilizing the most common industry standards: RS232 and RS485.
Call factory for a recommended RS485 converter.
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CN8240 & CN8260 Series Communications & Options
Digital
Communications Option
Omega+ Protocol
The Omega+ Protocol provides an easy way to query and modify controller parameters using a personal computer
and the optional digital communications option of the 18C/25C.
In this manual, the word “host” refers to the personal computer that’s communicating with the controllers in the
serial link, and the word “slave” refers to the controllers themselves.
All transactions between the host and the slaves are done with messages consisting of only printable ASCII characters. There are only two primary types of messages: Requests and Responses. Messages coming from the host are
called requests and messages coming from the slaves are called responses.
With the exception of a broadcast request, for every request sent from the host, the slave will send back a response.
If a slave does not respond within 100 milliseconds, then the request can be considered lost.
A broadcast request is a request having an ID of ‘00’ (see Message Formats below). It is used to address all slaves
on the network. All slaves on the network will perform the actions requested in a broadcast message. However, a
response message will not be returned. Therefore, the host can only broadcast Write or Auxiliary Command
Requests. All slaves will ignore all Read Broadcast Requests.
Message Formats
All Omega+ messages adhere to the general format of:
[START CHAR][ID][ZONE][TYPE][PARAM][ERROR][DATA][CHKSUM][END CHAR]
START CHAR
This is a single character which designates the start of the message. For a Request message, this character is the
ASCII ‘$’ and for a Response message, this character is the ASCII ‘%’.
ID
This is a two-character ID identifying the receiving controller. Controller IDs go from 1-255 inclusively and all slaves
in the network must have unique IDs. The ID number of ‘00’, when used in a request, designates a broadcast message that is used to address all controllers in the network. See the section Request Message for an explanation of the
broadcast message.
In order to represent 255 with just two ASCII characters, a number system known as the Message Code Numbering
System is used. In this system, the most significant digit is represented with the numbers 0-9 and the letters A-Z
and the least significant digit is represented with the numbers 0-9.
The numbers 0-9 have the same values as their decimal counterparts and the letters A-Z have the values of 100 - 50
inclusively in increments of 10.
Example:
Message Code Value
=
Decimal Value
00
0 + 0 = 00
99
90 + 9 = 99
A0
100 + 0 = 100
A2
100 + 2 = 102
B8
110 + 8 = 118
P5
250 + 5 = 255
Zone
This is a two character ID identifying the Zone number in multi-zone capable controllers. For the 18C/25C, this number must be 01.
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CN8240 & CN8260 Series Communications & Options
Digital
Communications Option
Type
This is a single character identifying the type of message. The following table lists the type characters for all messages.
TYPE character
Message Type
R
Read Request or Read
Response Returning a Positive Result
r
Read Response Returning a Negative Result
W
Write Positive Value Request and Response
w
Write Negative Value Request and Response
A
Auxiliary Command
For further information, see following sections on the different message types.
PARAM
This is a two character, message specific, parameter ID. For a Read/Write Request or Response message, this
ID identifies the controller parameter. For an Auxiliary Command Request or Response message, this ID specifies
the command.
ERROR
Code
Description
0
No error.
1
Framing error.
2
Hardware error.
3
Parity error.
4
Bad character in the TYPE field.
5
Bad message. Message cannot be understood.
6
Bad checksum. The checksum received
did not match the checksum of the message.
7
Bad zone ID.
8
Bad auxiliary command ID. The auxiliary
command is not supported in this controller.
9
Bad parameter ID. The parameter is not
supported in this controller.
A
Bad data. Bad representation in the data field
or data is out of range.
B
Attempt to write to a read only parameter.
C
Cannot write to a parameter because it’s in use.
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CN8240 & CN8260 Series Communications & Options
Digital
Communications Option
Examples of valid numeric representations for a 6 character data field:
Numeric Value
ASCII Representation
3
3.0000
000003
003.00
100
100.00
0100.0
000100
3.2
003.20
0003.2
Examples of invalid numeric representations for 6 character data field:
(B represents a blank, or a space, character)
Numeric Value
Bad ASCII Representation
Why?
3
BBBBB3
Leading blanks
are not allowed.
3.0BBBB
Trailing blanks
are not allowed.
-3.20000
‘-’ is not allowed.
3.2
CHKSUM
This is a two character Message Code Numbering System, representing the sum of all the ASCII values of all the
characters (excluding the START, CHAR, the END CHAR, and the CHKSM themselves) in the message. The sum
is computed using the following formula:
CHKSM = SUM(All Message Characters)%256
% represents the modulus operator.
END CHAR
This is a single character designating the end of the message. For all messages, the character used is <CR>, the
carriage return.
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CN8240 & CN8260 Series Communications & Options
Digital
Communications Option
READ COMMAND TO CONTROLLER
Read Command
Controller ID
Checksum
$0101R01B7<CR>
End of Message
Start of Message
Parameter Number
Zone Number
READ RESPONSE FROM CONTROLLER
Read Command
Data
Controller ID
Checksum
%0101R0502.0000J7<CR>
Start of Message
Parameter Number
End of Message
Zone Number
WRITE COMMAND TO CONTROLLER
Write Command
Controller ID
Checksum
Data
$0101W1025.000G7<CR>
Start of Message
Parameter Number
Zone Number
9
End of Message
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CN8240 & CN8260 Series Communications & Options
Digital
Communications Option
WRITE RESPONSE FROM CONTROLLER
Write Command
Checksum
No Error
Controller ID
%0101W090H8<CR>
Parameter Number
Start of Message
End of Message
Zone Number
AUXILIARY COMMAND TO CONTROLLER
Auxiliary
Command
Checksum
Data
Controller ID
$0101A020.0000000067<CR>
Start of Message
End of Message
Parameter Number
Zone Number
AUXILIARY RESPONSE FROM CONTROLLER
Auxiliary
Command
Controller ID
No Error
Checksum
%0101A020E9<CR>
Start of Message
Parameter Number
Zone Number
10
End of Message
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CN8240 & CN8260 Series Communications & Options
Digital
Communications Option
The Read Request:
The Read Request is used to query parameter values and it has the following message format:
[START CHAR][ID][ZONE][TYPE][PARAM][CHKSUM][END CHAR]
Field Description: TYPE Must contain the uppercase letter ‘R’.
Request Message
Description
$Ø1Ø1RØ5C1<CR>
Queries the value of the Process Variable
of Controller #1.
$Ø1Ø1RØ9C5<CR>
Queries the value of the EEPROM
Setpoint 1 of Controller #1
$Ø2Ø1RØ9C6<CR>
Queries the value of the EEPROM
Setpoint 1 of Controller #2.
END CHAR
CHKSUM
PARAM
TYPE
ZONE
ID
START CHAR
Request Messages are sent from the host to the slaves. Each request will have an ID identifying the intended
recipient of the request. If the ID is ‘00’ (zero), then the request is a broadcast message.
All slaves will perform the action requested in the broadcast request. However, a response message will not be
returned. Therefore, it only makes sense to send Write or Auxiliary Command Requests as broadcast requests.
There are three types of Request Messages: Read, Write, and Auxiliary Commands.
*Examples of the responses to these requests are given in later sections on Response Messages.
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CN8240 & CN8260 Series Communications & Options
Digital
Communications Option
The Write Request:
The Write Request is used to modify parameter values and it has the following message format: [START
CHAR][ID][ZONE] [TYPE][PARAM][DATA][CHKSUM][END CHAR]
Field Description:
TYPE
This field must contain one of the following
two characters.
W – Value in DATA is a positive value.
w – Value in DATA is a negative value.
DATA
A six-character ASCII representation of a numeric value.
Request Message
Description
$Ø1Ø1WØ91Ø.123G7<CR>
Change both the RAM and EEPROM
copies of Setpoint #1 in controller #1
to the value of 10.123
$Ø1Ø1w1Ø1Ø.123J1<CR>
Change only the RAM copy of setpoint #1
in controller #1 to the value of -10.123
(notice the lowercase ‘w’).
END CHAR
CHKSUM
DATA
PARAM
TYPE
ZONE
ID
START CHAR
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CN8240 & CN8260 Series Communications & Options
Digital
Communications Option
The Auxiliary Command Request:
The Auxiliary Command Request is used to issue commands to the controllers and it has the following message format:
Field Description:
TYPE
This field must contain the uppercase letter ‘A’
DATA
A ten-character ASCII representation of a numeric value or
10 alphanumeric ASCII characters.
Request Message
Description
$Ø1Ø1AØ1XXXXXXXXXXL2<CR>
Tell controller #1 to load all
parameters with their defaults.
The 10 X’s are padding characters.
$Ø2Ø1AØ2ØØØ1.ØØØØØ69<CR>
Tell controller #2 to perform a low
RTD calibration.
END CHAR
CHKSUM
DATA
PARAM
TYPE
ZONE
ID
START CHAR
Response Messages:
Response Messages are replies to the requests sent from the host. For each
request received, the slave will reply back with a response.
For all requests, the Omega+ Protocol specifies a maximum response time
of 100 milliseconds. If the controller does not start responding within 100
milliseconds after the last request character is received, that request can be
considered lost. See Figure 2 below.
There are three types of Response Messages:
Read, Write, and Auxiliary Commands.
Figure 2. Maximum Time Interval Between Host Request and
Slave (Controller) Response.
100 ms max.
Request Message
Response Message
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CN8240 & CN8260 Series Communications & Options
Digital
Communications Option
The Read Response:
The Read Response will be sent in response to a Read Request. Some examples:
Request Message
Description
%Ø1Ø1RØ5Ø21.123K8<CR>
The value of the Process
Variable is 21.123 Degrees C.
%Ø2Ø1R1Ø1G7<CR>
A serial transmission has occurred:
Framing Error
%Ø1Ø1rØ9Ø21.ØØØN8<CR>
The value of the EEPROM setpoint #1 is
-21 Degrees C (notice the lowercase ‘r’).
END CHAR
CHKSUM
DATA
STATUS
PARAM
TYPE
ZONE
ID
START CHAR
The Write Response:
The Write Response will be sent in response to a Write Request. Some examples:
Request Message
Description
%Ø1Ø1WØ93I1<CR>
A serial transmission error has occurred:
Parity error. Write failed.
%Ø1Ø1w1ØØK2<CR>
RAM copy of setpoint #1
modified successfully.
END CHAR
CHKSUM
STATUS
PARAM
TYPE
ZONE
ID
START CHAR
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CN8240 & CN8260 Series Communications & Options
Digital
Communications Option
The Auxiliary Command Response:
The Auxiliary Command Response will be sent in response to an Auxiliary Command Request. Some examples are:
Request Message
Description
%Ø1Ø1AØ1ØXXXXXXXXXXØ4<CR>
Default load all parameters
has started.
%Ø2Ø1AØ2ØØ.ØØØØØØØØB6<CR>
RTD low calibration on controller
#2 has started.
END CHAR
CHKSUM
DATA
STATUS
PARAM
TYPE
ZONE
ID
START CHAR
Table 1. Communications Parameter List (Omega+ Protocol)
Number
Name
Read
Write
Data Field Value
1
Controller Type
X
0
3
2
Software Version
X
0
3
Communications Version
X
0
4
Status Byte
X
0
This field contains the ASCII
representation of an 8-bit value
in which the bit assignments are as follows (starting
from the least significant bit):
X
X
0
CN8240/CN8260 Parameter Codes
X
“X”s mark parameters that are supported by
the CN8240 and CN8260 and “O”s indicate
parameters that are not supported.
X
X
0
0
Process Input Error
RAS Error
Always Zero
Loop Break
Alarm 1 Active
Alarm 2 Active
Always Zero
Always Zero
If a bit at a location marked as “X”
is set, then the condition is TRUE.
For example, a “48.000” in the data field means that
both alarm 1 and alarm 2 are active and everything
else is FALSE.
15
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Page 19
CN8240 & CN8260 Series Communications & Options
Digital
Communications Option
Table 1. Continued
Number
Name
Read
5
Process Value
X
0
6
Operating Mode
X
X
1 - Manual
2 - Standby
3 - Normal (automatic)
4 - Initiate Autotune
5 - Recipe Run
6 - Recipe Hold
7
Access Level
X
X
1 - Lockout
2 - Setpoint
3 - Setpoint Plus
4 - User
5 - Configuration
6 - Factory
8
Contact/Digital Input State
X
0
0 - Switch Open
1 - Switch Closed
9
Setpoint, RAM, EEPROM
X
X
10
Setpoint, RAM Only
X
X
11
Second Setpoint,
RAM, EEPROM
X
X
12
Second Setpoint,
RAM only
X
X
13
Remote Analog Setpoint
X
0
14
Recipe Setpoint
X
0
16
Output 1 Percentage
X
0
17
Output 2 Percentage
X
0
18
Manual Control
Output 1 Percentage
X
X
19
Manual Control
Output 2 Percentage
X
X
20
Output 1 Deadband
X
X
21
Output 1 Hysteresis
X
X
22
Output 1 Proportional
Band
X
X
23
Output 2 Proportional
Band
X
X
30
Rate (Derivative) Value
X
X
32
Reset (Integral) Value
X
X
34
Manual Reset
(Integral) Value
X
X
37
Output 2 Deadband
X
X
38
Output 2 Hysteresis
X
X
16
Write
Data Field Value
10002 Athena Omega:900M124U00.qxd
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Page 20
CN8240 & CN8260 Series Communications & Options
Digital
Communications Option
Table 1. Continued
Number
Name
Read
Write
Data Field Value
39
Autotune Damping
X
X
1 - Low
2 - Normal
3 - High
40
Recipe Option
X
X
X
X
X
X
0 - Disabled
1 - Single Step
2 - Multi-Step
41
Single-Setpoint
Ramp Time
X
X
42-49
Ramp Times 1-8
X
X
50-57
Ramp Events 1-8
X
X
58-65
Soak Levels 1-8
X
X
66-73
Soak Times 1-8
X
X
74-81
Soak Events 1-8
X
X
82
Recycle Number
X
X
83
Holdback Band
X
X
84
Termination State
X
X
0 - Last Setpoint
1 - Default Setpoint
2 - Recipe to Standby Mode
85
Power Fail Resume
Enable
X
X
1 - Resume Off
2 - Resume On
86
Input Bias
X
X
87
Input Low Scale
X
X
88
Input High Scale
X
X
89
Lower Setpoint Limit
X
X
90
Upper Setpoint Limit
X
X
91
Input Filter
X
X
17
0 - Disabled
1 - Event 1 On
2 - Event 1 Off
3 - Event 2 On
4 - Event 2 Off
0 - Disabled
1 - Event 1 On
2 - Event 1 Off
3 - Event 2 On
4 - Event 2 Off
10002 Athena Omega:900M124U00.qxd
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Page 21
CN8240 & CN8260 Series Communications & Options
Digital
Communications Option
Table 1. Continued
Number
Name
Read
Write
Data Field Value
92
Input Type
X
X
0 - B Thermocouple
1 - C Thermocouple
2 - E Thermocouple
3 - J Thermocouple
4 - K Thermocouple
5 - N Thermocouple
6 - NNM Thermocouple
7 - R Thermocouple
8 - S Thermocouple
9 - T Thermocouple
10 - Platinel II Thermocouple
11 - RTD (Integer)
12 - RTD (Decimal)
13 - 0-20 mA
14 - 4-20 mA
15 - 0-10 mV
16 - 0-50 mV
17 - 0-100 mV
18 - 10-50 mV
19 - 0-1 V
20 - 0-5 V
21 - 0-10 V
22 - 1-5 V
94
Output 1 Type
X
X
1 - Inactive/Disabled
2 - PID
4 - On/Off
95
Output 1 Action
X
X
1 - Direct
2 - Reverse
18
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Page 22
CN8240 & CN8260 Series Communications & Options
Digital
Communications Option
Table 1. Continued
Number
Name
Read
Write
Data Field Value
A2
Output 1 Cycle Time
X
X
A3
Output 1 Low Limit
X
X
A4
A5
Output 1 High Limit
Output 2 Type
X
X
X
X
A6
Output 2 Action
X
X
B3
Output 2 Cycle Time
X
X
B4
Output 2 Low Limit
X
X
B5
B6
B7
Output 2 High Limit
TC/RTD Decimal Position
Linear Decimal Position
X
X
X
X
X
X
B8
Display Filter
X
X
B9
Display Units
X
X
C1
Display Blanking
X
X
C2
Alarm 1 Action
C3
Alarm 1 Operation
C4
Alarm 1 Delay
X
X
C5
Alarm 1 Inhibit
X
X
C6
Alarm 1 Process Setpoint
X
X
C7
Alarm 1 Deviation Setpoint
X
X
C8
Alarm 2 Action
X
X
1 - Off
2 - Normal
3 - Latched
4 - Event
C9
Alarm 2 Operation
X
X
1 - Process High
2 - Process Low
3 - Deviation High
4 - Deviation Low
5 - Normal Band
6 - Inverse Band
1 - Inactive/Disabled
2 - PID
4 - On/Off
1 - Direct
2 - Reverse
1 - Fahrenheit
2 - Celsius
3 - Kelvin
1- Off
2 - Normal
3 - Latched
4 - Event
X
X
19
1- Process High
2 - Process Low
3 - Deviation High
4 - Deviation Low
5 - Normal Band
6 - Inverse Band
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Page 23
CN8240 & CN8260 Series Communications & Options
Digital
Communications Option
Table 1. Continued
Number
Name
Read
Write
D0
Alarm 2 Delay
X
X
D1
Alarm 2 Inhibit
X
X
D2
Alarm 2 Process Setpoint
X
X
D3
Alarm 2 Deviation Setpoint
X
X
D4
Communications Protocol
X
0
D5
Communications ID
X
X
D6
Baud Rate
X
X
D7
Data Format
X
X
D8
Communications
Transmit Delay
X
X
E1
Output 1 Failsafe %
X
X
E2
Output 2 Failsafe %
X
X
E3
Loop Break Time
X
X
E4
Highest Reading
X
X
E5
Lowest Reading
X
X
E8
Option Selection
X
0
E9
TC Zero Calibration
X
X
F0
TC Span Calibration
X
X
F1
RTD Zero Calibration
X
X
F2
RTD Span Calibration
X
X
F3
Low-Voltage Zero
Calibration
X
X
F4
Low-Voltage Span
Calibration
X
X
F5
High-Voltage Zero
Calibration
X
X
20
Data Field Value
1 - Omega +
0 - 75
1 - 150
2 - 300
3 - 600
4 - 1200
5 - 2400
6 - 4800
7 - 9600
0 - 7-0-1
1 - 7-E-1
2 - 7-N-2
3 - 7-0-2
4 - 7-E-2
5 - 8-N-1
6 - 8-0-1
7 - 8-E-1
8 - 8-N-2
1 - Comm Option
10002 Athena Omega:900M124U00.qxd
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Page 24
CN8240 & CN8260 Series Communications & Options
Digital
Communications Option
Table 1. Continued
Number
Name
Read
Write
F6
High-Voltage Span
Calibration
X
X
F7
Current Zero Calibration
X
X
F8
Current Span Calibration
X
X
G1
Auxiliary Output Variable
X
X
G2
Auxiliary Output Scale Low
X
X
G3
Auxiliary Output Scale High
X
X
G5
RAS Scale Low
X
X
G6
RAS Scale High
X
X
G7
Contact/Digital Switch
X
X
1 - Disabled
2 - Second Setpoint Select
3 - Standby Select
4 - Run/Hold Switch
H2
Autotune State
X
0
0 - Success
1 - Aborted
2 - Error: No PID Output
3 - Error: No Deviation
4 - Error: No Output
5 - Error: Timed out
6 - Error: Bad Tune
7 - Waiting for PV to settle
8 - Reverse Tune In Progress
9 - Direct Tune In Progress
H3
Recipe State
X
0
H5
Current Recipe Statement
X
0
H6
Active Setpoint
X
X
H7
Resume Exhaustion Flag
X
0
H8
LED Status Indicator
X
0
H9
RTD Decimal Zero
Calibration
X
X
I0
RTD Decimal Span
Calibration
X
X
I1
1-5 V, 0-10 V
Zero Calibration
X
X
I2
1-5 V, 0-10 V
Span Calibration.
X
X
I3
10-050 mV, 0-100 mV
Zero Calibration
X
X
I4
10-50 mV, 0-100 mV
Span Calibration
X
X
21
Data Field Value
10002 Athena Omega:900M124U00.qxd
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Page 25
CN8240 & CN8260 Series Communications & Options
Digital
Communications Option
Auxiliary Commands:
Command:
Load Parameter Defaults
Parameter #:
01
Description
Restore all menu parameters to their default values.
Request Data Field:
Ignored.
Response Data Field:
Ignored.
Command:
Perform Process Low Calibration
Parameter #:
02
Description:
Performs a Low Calibration. The data field in the request
message specifies the process. Make sure the prerequisite
for the calibration is satisfied before issuing a calibration
command. For instance, the RTD calibration command must
only be used when the input sensor type is chosen as RTD
or RTD w/ Decimal.
22
10002 Athena Omega:900M124U00.qxd
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Page 26
CN8240 & CN8260 Series Communications & Options
Digital
Communications Option
Request Data Fields:
A 10-character ASCII representation of a numeric value
specifying what to calibrate.
0 - Thermocouple
1 - RTD, Resistive Thermal Device
2 - Linear
3 - RAS, Remote Analog Setpoint
Response Data Field:
Ignored.
Command:
Perform Process High Calibration
Parameter #:
03
Description:
Performs a High Calibration. The data field in the request
message specifies the process. Make sure the prerequisite
for the calibration is satisfied before issuing a calibration
command. For instance, the RTD calibration command must
only be used when the input sensor type is chosen as RTD
or RTD w/ Decimal.
Request Data Field:
A 10-character ASCII representation of a numeric value
specifying what to calibrate.
0 - Thermocouple
1 - RTD, Resistive Thermal Device
2 - Linear
3 - RAS, Remote Analog Setpoint
Command:
Retrieve Display
Parameter #:
05
Description:
Retrieves the string currently displayed on the slave’s display.
The data field in the request message specifies which display
and the data field in the response message contains the string.
Request Data Field:
A 10 character ASCII representation of a numeric value
specifying which display to retrieve data from.
0 - Lower Display
1 - Upper Display
Response Data Field:
The ASCII string.
Command:
Clear Latched Alarms
Parameter #:
10
Description:
Clear all latched alarms.
Request Data Field:
Ignored.
Response Data Field:
Ignored.
23
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Page 27
CN8240 & CN8260 Series Communications & Options
Notes
24
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Page 28
CN8240 & CN8260 Series Communications & Options
Notes
25
10002 Athena Omega:900M124U00.qxd
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Page 29
CN8240 & CN8260 Series Communications & Options
Notes
26
10002 Athena Omega:900M124U00.qxd
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Page 30
WARRANTY / DISCLAIMER
OMEGA ENGINEERING, INC. warrants this unit to be free of defects in materials and workmanship for a period of 25
months from date of purchase. OMEGA's Warranty adds an additional one (1) month grace period to the normal two (2)
year product warranty to cover handling and shipping time. This ensures that OMEGA’s customers receive maximum coverage on each product.
If the unit malfunctions, it must be returned to the factory for evaluation. OMEGA’s Customer Service Department will issue an
Authorized Return (AR) number immediately upon phone or written request. Upon examination by OMEGA, if the unit is found to be
defective it will be repaired or replaced at no charge. OMEGA’s WARRANTY does not apply to defects resulting from any action of the
purchaser, including but not limited to mishandling, improper interfacing, operation outside of design limits, improper repair, or
unauthorized modification. This WARRANTY is VOID if the unit shows evidence of having been tampered with or shows evidence of
having been damaged as a result of excessive corrosion; or current, heat, moisture or vibration; improper specification; misapplication; misuse or other operating conditions outside of OMEGA’s control. Components which wear are not warranted, including but not
limited to contact points, fuses, and triacs.
OMEGA is pleased to offer suggestions on the use of its various products. However, OMEGA neither assumes
responsibility for any omissions or errors nor assumes liability for any damages that result from the use of its
products in accordance with information provided by OMEGA, either verbal or written. OMEGA warrants only
that the parts manufactured by it will be as specified and free of defects. OMEGA MAKES NO OTHER
WARRANTIES OR REPRESENTATIONS OF ANY KIND WHATSOEVER, EXPRESS OR IMPLIED, EXCEPT THAT OF
TITLE, AND ALL IMPLIED WARRANTIES INCLUDING ANY WARRANTY OF MERCHANTABILITY AND FITNESS
FOR A PARTICULAR PURPOSE ARE HEREBY DISCLAIMED. LIMITATION OF LIABILITY: The remedies of
purchaser set forth herein are exclusive, and the total liability of OMEGA with respect to this order, whether
based on contract, warranty, negligence, indemnification, strict liability or otherwise, shall not exceed the
purchase price of the component upon which liability is based. In no event shall OMEGA be liable for
consequential, incidental or special damages.
CONDITIONS: Equipment sold by OMEGA is not intended to be used, nor shall it be used: (1) as a “Basic Component” under
10 CFR 21 (NRC), used in or with any nuclear installation or activity; or (2) in medical applications or used on humans.
Should any Product(s) be used in or with any nuclear installation or activity, medical application, used on humans, or
misused in any way, OMEGA assumes no responsibility as set forth in our basic WARRANTY/ DISCLAIMER language, and,
additionally, purchaser will indemnify OMEGA and hold OMEGA harmless from any liability or damage whatsoever arising
out of the use of the Product(s) in such a manner.
RETURN REQUESTS / INQUIRIES
Direct all warranty and repair requests/inquiries to the OMEGA Customer Service Department. BEFORE RETURNING ANY
PRODUCT(S) TO OMEGA, PURCHASER MUST OBTAIN AN AUTHORIZED RETURN (AR) NUMBER FROM OMEGA’S CUSTOMER SERVICE DEPARTMENT (IN ORDER TO AVOID PROCESSING DELAYS). The assigned AR number should then be
marked on the outside of the return package and on any correspondence.
The purchaser is responsible for shipping charges, freight, insurance and proper packaging to prevent breakage in transit.
FOR WARRANTY RETURNS, please have the
following information available BEFORE contacting
OMEGA:
1. Purchase Order number under which the
product was PURCHASED,
2. Model and serial number of the product under
warranty, and
3. Repair instructions and/or specific problems
relative to the product.
FOR NON-WARRANTY REPAIRS, consult OMEGA
for current repair charges. Have the following
information available BEFORE contacting OMEGA:
1. Purchase Order number to cover the COST
of the repair,
2. Model and serial number of the product, and
3. Repair instructions and/or specific problems
relative to the product.
OMEGA’s policy is to make running changes, not model changes, whenever an improvement is possible. This affords our customers the
latest in technology and engineering.
OMEGA is a registered trademark of OMEGA ENGINEERING, INC.
© Copyright 2008 OMEGA ENGINEERING, INC. All rights reserved. This document may not be copied, photocopied, reproduced, translated, or
reduced to any electronic medium or machine-readable form, in whole or in part, without the prior written consent of OMEGA ENGINEERING, INC.
10002 Athena Omega:900M124U00.qxd
5/13/08
2:39 PM
Page 31
Where Do I Find Everything I Need for
Process Measurement and Control?
OMEGA…Of Course!
TEMPERATURE
– Thermocouple, RTD & Thermistor Probes, Connectors,
Panels & Assemblies
– Wire: Thermocouple, RTD & Thermistor
– Calibrators & Ice Point References
– Recorders, Controllers & Process Monitors
– Infrared Pyrometers
PRESSURE, STRAIN AND FORCE
–
–
–
–
Transducers & Strain Gages
Load Cells & Pressure Gages
Displacement Transducers
Instrumentation & Accessories
FLOW/LEVEL
–
–
–
–
Rotameters, Gas Mass Flowmeters & Flow Computers
Air Velocity Indicators
Turbine/Paddlewheel Systems
Totalizers & Batch Controllers
pH/CONDUCTIVITY
–
–
–
–
pH Electrodes, Testers & Accessories
Benchtop/Laboratory Meters
Controllers, Calibrators, Simulators & Pumps
Industrial pH & Conductivity Equipment
DATA ACQUISITION
–
–
–
–
–
Data Acquisition & Engineering Software
Communications-Based Acquisition Systems
Plug-in Cards for Apple, IBM & Compatibles
Datalogging Systems
Recorders, Printers & Plotters
HEATERS
–
–
–
–
–
Heating Cable
Cartridge & Strip Heaters
Immersion & Band Heaters
Flexible Heaters
Laboratory Heaters
ENVIRONMENTAL
MONITORING AND CONTROL
–
–
–
–
–
–
900M124U00B
Metering & Control Instrumentation
Refractometers
Pumps & Tubing
Air, Soil & Water Monitors
Industrial Water & Wastewater Treatment
pH, Conductivity & Dissolved Oxygen Instruments
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