Serial Communication Interface, Maintenance | Chromalox 1604-7

Operative mode : High or low programmable.

Threshold : programmable from - 500 to +500 units.

Hysteresis : programmable from 0.1 % to 10.0 % of the input span or 1 LDS.

SERIAL COMMUNICATION INTERFACE

Type: RS-485

Protocol type: MODBUS, JBUS, ERO polling/ selecting.

Baud rate: programmable from 600 to 19200 BAUD.

Byte format: 7 or 8 bit programmable.

Parity: even, odd or none programmable.

Stop bit : one.

Address :

-from 1 to 95 for ERO protocol

-from 1 to 255 for all the other protocols

Output voltage levels: according to EIA standard.

MAINTENANCE

1) REMOVE POWER FROM THE POWER

SUPPLY TERMINALS AND FROM RELAY OUTPUT TERMINALS

2)Remove the instrument from case.

3)Using a vacuum cleaner or a compressed air jet (max. 3 kg/cm2) remove all deposit of dust and dirt which may be present on the louvers and on the internal circuits trying to be careful for not damage the electronic components.

4)To clean external plastic or rubber parts use only a cloth moistened with:

-Ethyl Alcohol (pure or denatured) [C2H5OH] or

-Isopropil Alcohol (pure or denatured)

[(CH3)2CHOH] or

- Water (H2O)

5)Verify that there are no loose terminals.

6)Before re-inserting the instrument in its case, be sure that it is perfectly dry.

7)re-insert the instrument and turn it ON.

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Chromalox 1604-7 user manual Serial Communication Interface, Stop bit one Address, Maintenance

Contents

Chromalox Contents Model identification III Mounting Requirements Screw Outline and CUT OUT Dimensions Outline and CUT-OUT Dimensions Connection Diagrams Measuring Inputs TC Input RTD Input Linear Input Relay Outputs Logic Input Safety noteOUT Linear Output Inductive LoadsLoad Operating Voltage Power Line Wiring Serial Interface When the Neutral line is present, connect it to terminal Type TC-RTD Preliminary Hardware SettingsInput Open Input Circuit SEr3 = Baude rate for serial link SEr1 = Serial interface protocolOFF SEr4 = Byte format for serial link P4 = Full scale value P2 = Decimal point positionP3 = Initial scale value P5 = Output 1 function P8 = analog retransmission full scale value P10 = Alarm 1 operating modeP7 = analog retransmission initial scale value P9 = Output 2 function. nonE = output not used P14 = Alarm 2 threshold value P12 = Alarm 2 operating modeP15 = Alarm 2 hysteresis value P20 = Secondary control output action P19 = Displayed value of the main power outputP18 = Main control output action P22 = Cooling media P28 = Offset adjustment added to the measured value P24 = Alarm 1 actionP26 = Alarm 2 action P29 = Displayable protected parameters P38 = Output safety value P36 = Timeout selectionP34 = Manual function P43 = Set point indication P41 = Control action typeP44 = Operative set point alignment at instrument start up Display Function IndicatorsREM SP2 MAN MAN = SP SP2 Selection Manual Function Direct Access to SET PointLamp Test Smart function Serial Link HSA1 Alarm 1 hysteresis RSt Manual reset of the alarmsAL1 Alarm 1 threshold AL2 Alarm 2 threshold Relative Cooling gain Output 3 cycle timeHysteresis for ON/OFF control action Integral time TOL Time duration of the output power limiter soft start Grd1 Ramp applied to an increasing set point change Overrange Error MessagesError Messages Underrange Error List General Informations General SpecificationsInputs Thermocouple Linear Inputs Logic Input Control Actions SET PointsOutputs Alarms Output Serial Communication Interface MaintenanceStop bit one Address = OFF Appendix a Default ParametersParameter Default Value HSA1, HSA2 Para ER0 P44 Appendix A.3 Appendix A.4 Chromalox Emerson Electric CO