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6.4

 

C

OMMS COMMANDS

 ................................................................................................................... 20

 

(a)

 

Ethernet IP address – ‘eip’ ................................................................................................... 20

 

(b)

 

Ethernet subnet mask – ‘esm’ .............................................................................................. 20

 

6.5

 

C

HANNEL 

S

ETUP COMMANDS

 ...................................................................................................... 21

 

(a)

 

Input channel units string – ‘uiu’ .......................................................................................... 21

 

(b)

 

Input channel range – ‘uir’ ................................................................................................... 21

 

(c)

 

Input channel full scale – ‘uif’ ............................................................................................... 21

 

6.6

 

F

ILTERING COMMANDS

 ................................................................................................................ 22

 

(a)

 

Filter band – ‘flb’ ................................................................................................................... 22

 

(b)

 

Filter size – ‘fls’ ..................................................................................................................... 22

 

6.7

 

R

ELAY CONTROL COMMANDS

 ...................................................................................................... 22

 

(a)

 

Relay trip point – ‘rlt’ ............................................................................................................. 22

 

(b)

 

Relay hysteresis – ‘rlh’ .......................................................................................................... 23

 

6.8

 

O

THER COMMANDS

..................................................................................................................... 23

 

(a)

 

User input rezero – ‘irz’ ........................................................................................................ 23

 

(b)

 

Date of last factory calibration – ‘dlc?’ ................................................................................. 23

 

(c)

 

Retrieve all settings – ‘ras’ ................................................................................................... 23

 

SECTION 7 - PRINCIPLES ............................................................................................................ 24

 

7.1

 

I

NTRODUCTION

 ........................................................................................................................... 24

 

7.2

 

A

NALOGUE 

I

NPUTS

 ..................................................................................................................... 24

 

(a)

 

Range ................................................................................................................................... 24

 

(b)

 

Full Scale Voltage ................................................................................................................. 24

 

(c)

 

Units String ........................................................................................................................... 24

 

7.3

 

A

NALOGUE 

O

UTPUTS

 .................................................................................................................. 24

 

7.4

 

S

ETPOINT 

C

ONTROL

 ................................................................................................................... 25

 

(a)

 

Setpoint Mode ...................................................................................................................... 25

 

(b)

 

Setpoint Source .................................................................................................................... 25

 

7.5

 

U

SER 

R

EZERO

 ............................................................................................................................ 25

 

7.6

 

A

DAPTIVE 

F

ILTERING

 ................................................................................................................... 26

 

(a)

 

Operational band ................................................................................................................. 26

 

(b)

 

Filter size .............................................................................................................................. 26

 

SECTION 8 - SERVICE AND CALIBRATION ................................................................................ 27

 

8.1

 

S

ERVICE

 ..................................................................................................................................... 27

 

8.2

 

C

ALIBRATION

 .............................................................................................................................. 27

 

8.3

 

A

DJUSTMENT

.............................................................................................................................. 27

 

8.4

 

C

LEANING

 .................................................................................................................................. 27

 

8.5

 

E

ND OF 

L

IFE

 ............................................................................................................................... 27

 

SECTION 9 - APPENDICES .......................................................................................................... 28

 

9.1

 

A

PPENDIX 

A ............................................................................................................................... 28

 

9.2

 

A

PPENDIX 

B ............................................................................................................................... 29

 

9.3

 

A

PPENDIX 

C ............................................................................................................................... 30

 

 

TABLES 

Table 1 – CCD100 Command Set Summary .................................................................... 28

 

Table 2 – Factory Defaults ................................................................................................ 29

 

Table 3 – Settings in ‘ras’ command string ..................................................................... 30 

 

 

 

Summary of Contents for CCD100

Page 1: ...e House Folgate Road North Walsham Norfolk NR28 0AJ ENGLAND Tel 01692 500555 Fax 01692 500088 Chell Configurable Display CCD100 OPERATING MANUAL e mail info chell co uk Visit the Chell website at http...

Page 2: ...in this manual may impair the user s protection Chell Document No 900219 Issue 1 0 ECO Date 20th February 2018 Chell s policy of continuously updating and improving products means that this manual may...

Page 3: ...Main Screen changing Setpoint 7 c Main Screen Setpoint Valve Control 8 d Main Menu Screen 9 e Setpoint Screen Excitation Screen if millivolt option fitted 9 f Input Screen 10 g Comms Screen 11 h Filte...

Page 4: ...lc 23 c Retrieve all settings ras 23 SECTION 7 PRINCIPLES 24 7 1 INTRODUCTION 24 7 2 ANALOGUE INPUTS 24 a Range 24 b Full Scale Voltage 24 c Units String 24 7 3 ANALOGUE OUTPUTS 24 7 4 SETPOINT CONTRO...

Page 5: ...display the output from a pressure transducer It supports both voltage transducers typically 5 10V full scale and also millivolt transducers max 250mV full scale There is also a secondary channel whic...

Page 6: ...accuracy 15 minutes assumes unit already stabilised at ambient and excludes transducer warm up time 2 3 Measurement and Outputs Power supply out 15V dc 250mA max 24V dc 300mA max Use 15V or 24V trans...

Page 7: ...V Supply 15 Earth Chassis All other pins Not Connected If the transducer is being powered from another source e g a mains powered supply it will only be necessary to connect to the two signal pins Not...

Page 8: ...positive conductor to the centre pin Connect the negative 0V conductor to the outer of the jack If requested a compatible AC DC switch mode power supply will have been supplied with the unit Cautions...

Page 9: ...lection This may be to go to a sub menu or to an editable or information screen see HMI breakdown for more details b Editable screens On any screen that has editable fields switches move the selection...

Page 10: ...t mode override active for 2 seconds override mode Change setpoint mode to AUTO Change setpoint value main screen changes as below override mode Change setpoint mode to OPEN Change setpoint value main...

Page 11: ...a specific value the setpoint mode can be changed to Open or Closed which overrides any previously set value Again the main screen shows everything as normal but with the addition of the OPEN or CLOSE...

Page 12: ...for selection of any menu item Special note for millivolt option If the millivolt option is fitted then the Setpoint menu option will be listed as Excitation to allow for configuration of the initial...

Page 13: ...assign a units label up to 5 characters for the channel data The number of decimal places selected on the range field dictates the number of decimal places shown for the input channel data on the Main...

Page 14: ...and buffer size of the adaptive filter The filter only applies to the display and comms output readings The band is represented as a percentage of FS and can be set between 0 00 OFF and 1 00 and also...

Page 15: ...xt character when in edit mode Move edit field selection up Move edit field selection down Zero Go to edit mode for currently selected field j Factory Defaults Confirmation Screen If Factory Defaults...

Page 16: ...ote for TCP streaming to work a TCP connection on port 101 must be pre established the unit does not data stream over the HTTP port 80 5 2 Live data The live data page is the first page the user will...

Page 17: ...is the maximum Voltage output of the transducer Source is where the setpoint is referenced from Internal will output the number entered as the setpoint value and Slave will output a percentage of the...

Page 18: ...in the image above the input must get to Trip point 2 of fullscale and the relay will not switch off until the input drops to Trip point 2 of fullscale The trip point is the Engineering unit at which...

Page 19: ...c command query query identification p parameter separated by commas if more than one The first letter to be entered on the command line before any command or query is the address identifier The is a...

Page 20: ...rrect invalid parameters e ERROR if there was some internal comms error w BUSY if the comms is currently busy 6 3 Main commands a Output current readings r This command tells the CCD to get the curren...

Page 21: ...n decided that when 100ms repeated output is used the data will be taken every 100ms and buffered up to be sent out every 500ms in blocks of 5 readings This has proven to be a more robust output metho...

Page 22: ...command above is not non volatile This command can be used to set an initial setpoint value on system startup It takes one parameter which is the initial setpoint value The current value of the setpoi...

Page 23: ...IP address To retrieve the current IP address use the query eip The returned data is IP ADDRESS xxx xxx xxx xxx where xxx is always a three digit octet b Ethernet subnet mask esm This command changes...

Page 24: ...The number of decimal places passed in the range value dictates the number of decimal places shown for the main data output up to a max of 4 decimal places any more will get chopped off The current ra...

Page 25: ...buffer size in seconds between 0 and 6 seconds 0 can be used to effectively turn the adaptive filtering off To retrieve the current filter size use the query fls The returned data is FILTERING SIZE x...

Page 26: ...nction although it can take an optional parameter of 0 which clears any value already generated by a previous rezero To find the current user rezero value use the query irz The data returned is as fol...

Page 27: ...Scale Voltage Each device attached to the CCD will have a full scale voltage which is the maximum voltage the device should output under normal operating conditions Typical values are 10V 5V and 1V Th...

Page 28: ...ltage is 0 25V b Setpoint Source The setpoint source dictates where the setpoint value comes from assuming the mode is set to Auto see above This can be one of two possibilities Internal or Slave Inte...

Page 29: ...of the filtering irrespective of the band setting It should be noted that this type of adaptive filtering can cause readings to be displayed abnormally particularly if the buffer size is one of the l...

Page 30: ...within the instrument means that the user is strictly forbidden from removing the covers without invalidating Chell s obligations under both Warranty and COSSH 8 4 Cleaning A dirty instrument may be...

Page 31: ...as Comma separated string returned See Table 3 for actual settings Ethernet IP address eip eip IP octets P1 xxx xxx xxx xxx Ethernet subnet mask esm esm IP octets P1 xxx xxx xxx xxx Input channel unit...

Page 32: ...Range 10 000 Input Channel Full Scale 10 000 V or 100 00 mV If millivolt option fitted Input Channel Display Precision 3 3 decimal places Input Channel User Rezero 0 0 No rezero set Setpoint Value 0...

Page 33: ...byte 0 1 as for sps query initial value 8 char string representation of a float initial slave value 8 char string representation of a float initial mode 1 byte 0 2 as for sim query Adaptive filter ban...

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