Measurement Computing CB-7080 User Manual Download

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CB-7080 & CB-7080D

Counter/Timer

User’s Guide

Document Revision 2, September, 2005

Summary of Contents for CB-7080

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Page 3: ...opying recording or otherwise without the prior written permission of Measurement Computing Corp Notice Measurement Computing Corporation does not authorize any Measurement Computing Corporation product for use in life support systems and or devices without the written approval of the CEO of Measurement Computing Corporation Life support devices systems are devices or systems which a are intended ...

Page 4: ...ion 1 7 Digital output application notes 1 7 Programmable threshold voltage setting 1 8 Digital filter setting 1 8 Preset value setting 1 9 Frequency input applications 1 9 Configuration Code 1 10 2 2 2 2 Command Set 2 1 Overview 2 1 General syntax format 2 1 General Commands 2 2 Frequency commands 2 2 General counter commands 2 2 Alarm mode 0 commands 2 3 Alarm mode 1 commands 2 3 LED commands 2 ...

Page 5: ...3 AAI 2 34 AAM 2 35 AADI 2 36 AADO0D 2 38 AAEAN 2 39 AAEAT 2 40 AACA 2 41 AADA 2 42 AADAN 2 43 AAGN 2 44 AAPN data 2 45 AAPA data 2 46 AAPA data 2 47 AASA data 2 48 AASA data 2 49 AARP 2 50 AARP 2 51 AARA 2 52 AARA 2 53 3 3 3 3 Operating principle and application notes 3 1 INIT _pin operation principle 3 1 D O operation principles 3 1 ...

Page 6: ...ency without PC control Comparing the 7080 and 7080D Table 1 1 summarizes the features of the CB7080 and CB7080D modules Table 1 1 Comparison between CB 7080 and CB 7080D CB 7080 CB 7080D 5 digit LED display No Yes Response to LED command No Yes Module name programmable programmable Counter preset value Yes programmable Yes programmable Alarm on counter 0 only Yes programmable Yes programmable Ala...

Page 7: ...olated programmable Isolation input levels Logic level 0 1 V max Logic level 1 3 5 V to 30 V Isolation voltage 3750 V RMS Non isolation input threshold level Programmable Logic level 0 0 to 5 V default 0 8 V Logic level 1 0 to 5 V default 2 4 V Maximum count 32 bit 4 294 967 295 Programmable digital noise filter 2 µs to 65 ms Alarming alarm on counter 0 or counter 0 and 1 programmable Counter pres...

Page 8: ...0 W CB 7080D 2 2 W Functional block diagram Embedded Controller Programmable Digital Filter EEPROM RS 485 D D DC DC V V 5V 0V D O O C Alarm Output 5 digit LED CB 7080D 5V Counter_0 Counter_1 5V Gate0 Isolated Non isolated input selection Isolated Non isolated gate selection Gate0 5V Gate1 Gate1 In0 In0 In1 In1 Gate0 TTL Gate1 TTL In0 TTL In1 TTL Programmable threshold voltage Non isolated inputs I...

Page 9: ... drive to SSR or other load Note If the external load is resistive the 1N4001 can be omitted transistor lamp resistor etc If the external load is inductive the 1N4001 cannot be omitted relay coil etc Frequency Input Use the AABS command to select the isolated non isolated input Ext GND Ext 24V RS 485 Data RS 485 Data 7 6 5 4 3 8 2 1 9 10 GND VS Data Data In0 D Gnd Gate0 Init 12 11 Gate1 Gate1 143 ...

Page 10: ...edure to measure the frequency input of each channel Refer to Figure 1 4 for the wire connection 1 Power on and run the test exe application 2 Press 2 3 Press 012 Enter Receive 01500600 4 Press 2 5 Press 0101510600 Enter Receive 01 6 Press 2 7 Press 01B0 Enter Receive 01 8 Press 2 9 Press 010 Enter Receive 10 Press 2 11 Press 011 Enter Receive In step 3 the status of CB 7080 is COUNTER mode In ste...

Page 11: ... input mode selections Default settings CB 7080 and CB 7080D default settings are listed in Table 1 2 Table 1 2 Default Settings Address 01 Baud rate 9600 Checksum disabled Data bits 1 start 8 data 1 stop no parity Type 50 counter input Alarm CB 7080 High alarm on counter 0 and counter 1 CB 7080D High High High alarm on counter 0 Application notes Counter Frequency input mode selection Select the ...

Page 12: ...High alarm limit of channel 1 AASA data if counter 1 alarm limit 1 D O 1 turn ON if counter 1 alarm limit 1 D O 1 turn OFF Alarm mode 1 is used for single channel applications as follows Select alarm mode 1 AAA1 for channel 0 only Enable channel 0 AAEAT Disable channel 0 AADA Clear latch alarm AACA Set High alarm limit AAPA data Set High High alarm limit AASA data Counter 0 High alarm OFF OFF High...

Page 13: ...anged by the AA1L data command The high trigger level must be greater than the low trigger level Digital filter setting The digital filter is disabled in frequency mode 51 It is designed as a pulse width filter for both high low pulses and is valid for both non isolated and isolated inputs The digital filter can be enabled or disabled Key points of digital filter usage include 1 Use AABS to select...

Page 14: ...the module to frequency mode set the configuration code to 51in the Set module configuration command Table 1 6 Frequency mode settings Command Result Frequency 0 Result Frequency 1 AAB0 to set input mode 0 AA1H data and AA1L data Non isolated channel 0 and threshold voltage values active Non isolated channel 1 and threshold voltage values active AAB1 to set input mode 1 Isolated channel 0 Isolated...

Page 15: ... 1 AAB3 to set input mode 3 AA1H data and AA1L data Isolated channel 0 Non isolated channel 1 and threshold voltage values active Note The threshold voltage value commands AA1H data and AA1L data are effective for non isolated inputs only Configuration Codes Use the configuration codes listed in the following tables to set or read back the baud rate the status and the input type configuration code...

Page 16: ...el Table 2 6 LED Commands Get or set LED configuration To send data to the LED General syntax format Commands are constructed with individual pieces of information represented as code Each command is structured as follows One character Delimiter that indicates the type of command to execute Two character HEX module address from 00 to FF Function which indicates the task to execute Terminator chara...

Page 17: ...er Page 2 6 AAO name AA Set the module name Page 2 8 AA2 AATTCCFF Read the module configuration Page 2 17 AAF AA data Read the firmware number Page 2 33 AAI AAS Read the value of INIT pin Page 2 34 AAM AA data Read the module name Page 2 35 Frequency commands Table 2 2 Frequency Command Set Command Response Description Reference AAB AAS Read the input mode Page 2 31 AABS AA Set the input mode Page...

Page 18: ...e preset value Page 2 44 AAPN data AA Set the preset value Page 2 45 Alarm mode 0 commands Table 2 4 Alarm mode 0 Command Set Command Response Description Reference AAEAN AA Enable the alarm Page 2 39 AADAN AA Disable the alarm Page 2 43 AAPA data AA Set the counter 0 alarm value Page 2 46 AASA data AA Set the counter 1 alarm value Page 2 48 AARP AA Read the counter 0 alarm value Page 2 50 AARA AA...

Page 19: ...ble 1 9 chk 2 character checksum If checksum is disabled no chk cr 0x0D Response Valid response AA chk cr Invalid response AA chk cr No response Syntax error communication error or address error A delimiter character indicating a valid response A delimiter character indicating an invalid response AA 2 character HEX module address chk 2 character checksum If checksum is disabled no chk cr 0x0D Exam...

Page 20: ...is disabled no chk cr 0x0D Response Valid response chk data cr invalid response No Response no response Syntax error communication error or address error A delimiter character indicating a valid response data 8 character data in HEX format chk 2 character checksum If checksum is disabled no chk cr 0x0D Examples Counter 0 0x1E 30 in decimal command 012 cr response 01500600 cr command 010 cr respons...

Page 21: ...uide 2 2 Description The host sends this command to tell all modules Host is OK Syntax chk cr A delimiter character chk 2 character checksum If checksum is disabled no chk cr 0x0D Response No response Examples command cr response No Response ...

Page 22: ... checksum If checksum is disabled no chk cr 0x0D Response Valid response AASS chk cr Invalid response AA chk cr No response Syntax error communication error or address error A delimiter character indicating a valid response A delimiter character indicating an invalid response AA 2 character HEX module address SS 2 character HEX status value Bit_0 Bit_1 reserved Bit_2 0 OK 1 host watchdog time out ...

Page 23: ...cter checksum If checksum is disabled no chk cr 0x0D Response Valid response AA chk cr invalid response AA chk cr No response Syntax error communication error or address error A delimiter character indicating a valid response A delimiter character indicating an invalid response AA 2 character HEX module address chk 2 character checksum If checksum is disabled no chk cr 0x0D Examples Module status ...

Page 24: ...m If checksum is disabled no chk cr 0x0D Response Valid response AASTT chk cr invalid response AA chk cr no response Syntax error communication error or address error A delimiter character indicating a valid response A delimiter character indicating an invalid response AA 2 character HEX module address S 0 Host watchdog is disabled S 1 Host watchdog is enabled TT 2 character HEX value from 00 to F...

Page 25: ...ss from 00 to FF E 0 is disabled and 1 is enabled TT 2 character HEX value from 00 to FF unit 0 1 second chk 2 character checksum If checksum is disabled no chk cr 0x0D Response Valid response AA chk cr Invalid response AA chk cr no response Syntax error communication error or address error A delimiter character indicating a valid response A delimiter character indicating an invalid response AA 2 ...

Page 26: ...hk 2 character checksum If checksum is disabled no chk cr 0x0D Response Valid response AA chk cr invalid response AA chk cr no response Syntax error communication error or address error A delimiter character indicating a valid response A delimiter character indicating an invalid response AA 2 character HEX module address chk 2 character checksum If checksum is disabled no chk cr 0x0D Examples Set ...

Page 27: ...x error communication error or address error A delimiter character indicating a valid response A delimiter character indicating an invalid response AA 2 character HEX module address chk 2 character checksum If checksum is disabled no chk cr 0x0D Examples Change module name from 7080 to 8080 command 01M cr response 017080 cr command 01O8080 cr response 01 cr Change module name from 7080D to 8080D c...

Page 28: ...onse AA data chk cr Invalid response AA chk cr No response Syntax error communication error or address error A delimiter character indicating a valid response A delimiter character indicating an invalid response AA 2 character HEX module address data 5 character decimal value for min width at high level The unit is microseconds µs and the range can be from 2 µs to 65535 µs chk 2 character checksum...

Page 29: ...microseconds µs and the range can be from 2 µs to 65535 µs chk 2 character checksum If checksum is disabled no chk cr 0x0D Response Valid response AA chk cr invalid response AA chk cr No response Syntax error communication error or address error A delimiter character indicating a valid response A delimiter character indicating an invalid response AA 2 character HEX module address chk 2 character c...

Page 30: ... AA data chk cr invalid response AA chk cr no response Syntax error communication error or address error A delimiter character indicating a valid response A delimiter character indicating an invalid response AA 2 character HEX module address data 5 character decimal value for min width at low level The unit is microseconds and the range can be from 2 µs to 65535 µs chk 2 character checksum If chec...

Page 31: ...nds µs and the range can be from 2 µs to 65535 µs chk 2 character checksum If checksum is disabled no chk cr 0x0D Response Valid response AA chk cr invalid response AA chk cr no response Syntax error communication error or address error A delimiter character indicating a valid response A delimiter character indicating an invalid response AA 2 character HEX module address chk 2 character checksum I...

Page 32: ...lid response AA data chk cr Invalid response AA chk cr no response Syntax error communication error or address error A delimiter character indicating a valid response A delimiter character indicating an invalid response AA 2 character HEX module address data 2 character decimal value for high trigger level The unit is 0 1 volt and the range can be from 0 0 to 5 0 volts chk 2 character checksum If ...

Page 33: ...rom 0 0 to 5 0V chk 2 character checksum If checksum is disabled no chk cr 0x0D Response Valid response AA chk cr Invalid response AA chk cr no response Syntax error communication error or address error A delimiter character indicating a valid response A delimiter character indicating an invalid response AA 2 character HEX module address chk 2 character checksum if checksum is disabled no chk cr 0...

Page 34: ...id response AA data chk cr Invalid response AA chk cr No response Syntax error communication error or address error A delimiter character indicating a valid response A delimiter character indicating an invalid response AA 2 character HEX module address data 2 character decimal value for low trigger level The unit is 0 1V and the range can be from 0 0 to 5 0V chk 2 character checksum If checksum is...

Page 35: ...m 0 0 to 5 0V chk 2 character checksum If checksum is disabled no chk cr 0x0D Response Valid response AA chk cr Invalid response AA chk cr no response Syntax error communication error or address error A delimiter character indicating a valid response A delimiter character indicating an invalid response AA 2 character HEX module address chk 2 character checksum If checksum is disabled no chk cr 0x0...

Page 36: ...ecksum If checksum is disabled no chk cr 0x0D Examples Address 01 counter 9600 BPS checksum disabled command 012 cr response 01500600 cr Address 02 frequency 19200 BPS checksum disabled command 022 cr response 02510700 cr Note If you use the AANNTTCCFF command to change module configuration the new configuration code is stored into EEPROM immediately The configuration code includes the module addr...

Page 37: ... 0x0D Response Valid response AA data chk cr Invalid response AA chk cr no response Syntax error communication error or address error A delimiter character indicating a valid response A delimiter character indicating an invalid response AA 2 character HEX module address data 8 character HEX value chk 2 character checksum If checksum is disabled no chk cr 0x0D Examples Counter 0 from preset value t...

Page 38: ... If checksum is disabled no chk cr 0x0D Response Valid response AA data chk cr Invalid response AA chk cr no response syntax error communication error or address error A delimiter character indicating a valid response A delimiter character indicating an invalid response AA 2 character HEX module address chk 2 character checksum If checksum is disabled no chk cr 0x0D Examples Counter 0 from preset ...

Page 39: ... Response Valid response AAS chk cr Invalid response AA chk cr no response Syntax error communication error or address error A delimiter character indicating a valid response A delimiter character indicating an invalid response AA 2 character HEX module address S 0 digital filter is disabled S 1 digital filter is enable chk 2 character checksum If checksum is disabled no chk cr 0x0D Examples Digit...

Page 40: ...haracter checksum If checksum is disabled no chk cr 0x0D Response Valid response AA chk cr Invalid response AA chk cr no response Syntax error communication error or address error A delimiter character indicating a valid response A delimiter character indicating an invalid response AA 2 character HEX module address chk 2 character checksum If checksum is disabled no chk cr 0x0D Examples Disable th...

Page 41: ... Valid response AAS chk cr Invalid response AA chk cr no response Syntax error communication error or address error A delimiter character indicating a valid response A delimiter character indicating an invalid response AA 2 character HEX module address S 0 counter is stopped is disabled S 1 counter is started enabled chk 2 character checksum If checksum is disabled no chk cr 0x0D Examples Stop Cou...

Page 42: ...ksum If checksum is disabled no chk cr 0x0D Response Valid response AA chk cr Invalid response AA chk cr no response Syntax error communication error or address error A delimiter character indicating a valid response A delimiter character indicating an invalid response AA 2 character HEX module address chk 2 character checksum If checksum is disabled no chk cr 0x0D Examples Stop counter 0 command ...

Page 43: ... cr 0x0D Response Valid response AA chk cr Invalid response AA chk cr no response Syntax error communication error or address error A delimiter character indicating a valid response A delimiter character indicating an invalid response AA 2 character HEX module address chk 2 character checksum If checksum is disabled no chk cr 0x0D Examples Reads preset value of Counter 0 command 01G0 cr response 0...

Page 44: ...abled no chk cr 0x0D Response Valid response AAS chk cr Invalid response AA chk cr no response Syntax error communication error or address error A delimiter character indicating a valid response A delimiter character indicating an invalid response AA 2 character HEX module address S 0 no overflow S 1 overflowed chk 2 character checksum If checksum is disabled no chk cr 0x0D Examples Counter 0 has ...

Page 45: ...rror communication error or address error A delimiter character indicating a valid response A delimiter character indicating an invalid response AA 2 character HEX module address S 0 Show counter frequency channel 0 S 1 Show counter frequency channel 1 S 2 HOST control chk 2 character checksum If checksum is disabled no chk cr 0x0D Examples LED shows the value of channel 0 command 018 cr response ...

Page 46: ...um If checksum is disabled no chk cr 0x0D Response Valid response AA chk cr Invalid response AA chk cr no response Syntax error communication error or address error A delimiter character indicating a valid response A delimiter character indicating an invalid response AA 2 character HEX module address chk 2 character checksum If checksum is disabled no chk cr 0x0D Examples LED shows channel 1 comma...

Page 47: ...ecksum is disabled no chk cr 0x0D Response Valid response AA chk cr Invalid response AA chk cr no response Syntax error communication error or address error A delimiter character indicating a valid response A delimiter character indicating an invalid response AA 2 character HEX module address chk 2 character checksum If checksum is disabled no chk cr 0x0D Examples Show max 99999 command 01999999 c...

Page 48: ...response AAG chk cr Invalid response AA chk cr no response Syntax error communication error or address error A delimiter character indicating a valid response A delimiter character indicating an invalid response AA 2 character HEX module address G 0 Gate is low active G 1 Gate is high active G 2 Gate is disabled chk 2 character checksum If checksum is disabled no chk cr 0x0D Examples Module 1 gate...

Page 49: ...id response AA chk cr Invalid response AA chk cr no response Syntax error communication error or address error A delimiter character indicating a valid response A delimiter character indicating an invalid response AA 2 character HEX module address G 0 Gate is low active G 1 Gate is high active G 2 Gate is disabled chk 2 character checksum If checksum is disabled no chk cr 0x0D Examples Module 1 ga...

Page 50: ...g a valid response A delimiter character indicating an invalid response AA 2 character HEX module address S 0 channel 0 is non isolated channel 1 is non isolated S 1 channel 0 is isolated channel 1 is isolated S 2 channel 0 is non isolated channel 1 is isolated S 3 channel 0 is isolated channel 1 is non isolated chk 2 character checksum If checksum is disabled no chk cr 0x0D Examples Counter frequ...

Page 51: ...f checksum is disabled no chk cr 0x0D Response Valid response AA chk cr Invalid response AA chk cr no response Syntax error communication error or address error A delimiter character indicating a valid response A delimiter character indicating an invalid response AA 2 character HEX module address chk 2 character checksum If checksum is disabled no chk cr 0x0D Examples Counter frequency channel 0 i...

Page 52: ...ponse Valid response AA data chk cr Invalid response AA chk cr no response Syntax error communication error or address error A delimiter character indicating a valid response A delimiter character indicating an invalid response AA 2 character HEX module address data 5 character for version number chk 2 character checksum If checksum is disabled no chk cr 0x0D Examples Version A2 0 command 01F cr r...

Page 53: ...no response Syntax error communication error or address error A delimiter character indicating a valid response A delimiter character indicating an invalid response AA 2 character HEX module address S 0 INIT pin is connected to GND pin S 1 INIT pin is open chk 2 character checksum If checksum is disabled no chk cr 0x0D Examples INIT pin is connected to GND pin command 01I cr response 010 cr INIT p...

Page 54: ... AA data chk cr Invalid response AA chk cr no response Syntax error communication error or address error A delimiter character indicating a valid response A delimiter character indicating an invalid response AA 2 character HEX module address data 4 character for module name chk 2 character checksum If checksum is disabled no chk cr 0x0D Examples Module name of 01 is 7080 command 01M cr response 01...

Page 55: ...esponse AA chk cr no response Syntax error communication error or address error A delimiter character indicating a valid response A delimiter character indicating an invalid response AA 2 character HEX module address D 0 D O0 D O1 OFF D 1 D O0 ON D O1 OFF D 2 D O0 OFF D O1 ON D 3 D O0 D O1 ON Alarm mode 0 S 0 counter 0 alarm disabled counter 1 alarm disabled S 1 counter 0 alarm enabled counter 1 a...

Page 56: ...CB 7080 CB 7080D Counter Timer User s Guide AADI 2 37 Examples Alarm disabled D O0 D O1 OFF command 01DI cr response 0100000 cr Alarm enabled D O0 ON D O1 OFF command 02DI cr response 0230100 cr ...

Page 57: ... chk cr no response Syntax error communication error or address error A delimiter character indicating a valid response A delimiter character indicating an invalid response AA 2 character HEX module address chk 2 character checksum If checksum is disabled no chk cr 0x0D Examples Turn all D O OFF command 01DO00 cr response 01 cr Turn D O ON Turn D O 1 OFF command 02DO01 cr response 02 cr Note If th...

Page 58: ...unter 1 chk 2 character checksum If checksum is disabled no chk cr 0x0D Response Valid response AA chk cr Invalid response AA chk cr no response Syntax error communication error or address error A delimiter character indicating a valid response A delimiter character indicating an invalid response AA 2 character HEX module address chk 2 character checksum If checksum is disabled no chk cr 0x0D Exam...

Page 59: ... chk cr no response Syntax error communication error or address error A delimiter character indicating a valid response A delimiter character indicating an invalid response AA 2 character HEX module address chk 2 character checksum If checksum is disabled no chk cr 0x0D Examples Latch alarm for module 1 command 01EAL cr response 01 cr Momentary alarm for module 2 command 02EAM cr response 02 cr No...

Page 60: ...m is disabled no chk cr 0x0D Response Valid response AA chk cr Invalid response AA chk cr no response Syntax error communication error or address error A delimiter character indicating a valid response A delimiter character indicating an invalid response AA 2 character HEX module address chk 2 character checksum If checksum is disabled no chk cr 0x0D Examples Clear the latch alarm for module 1 com...

Page 61: ...sum is disabled no chk cr 0x0D Response Valid response AA chk cr Invalid response AA chk cr no response Syntax error communication error or address error A delimiter character indicating a valid response A delimiter character indicating an invalid response AA 2 character HEX module address chk 2 character checksum If checksum is disabled no chk cr 0x0D Examples Disable the alarm for module 1 comma...

Page 62: ...er checksum If checksum is disabled no chk cr 0x0D Response Valid response AA chk cr Invalid response AA chk cr no response Syntax error communication error or address error A delimiter character indicating a valid response A delimiter character indicating an invalid response AA 2 character HEX module address chk 2 character checksum If checksum is disabled no chk cr 0x0D Examples Disable the alar...

Page 63: ...If checksum is disabled no chk cr 0x0D Response Valid response AA data chk cr invalid response AA chk cr no response Syntax error communication error or address error A delimiter character indicating a valid response A delimiter character indicating an invalid response AA 2 character HEX module address data 8 character HEX value chk 2 character checksum If checksum is disabled no chk cr 0x0D Examp...

Page 64: ... chk 2 character checksum If checksum is disabled no chk cr 0x0D Response Valid response AA data chk cr invalid response AA chk cr no response Syntax error communication error or address error A delimiter character indicating a valid response A delimiter character indicating an invalid response AA 2 character HEX module address chk 2 character checksum If checksum is disabled no chk cr 0x0D Exampl...

Page 65: ...sum If checksum is disabled no chk cr 0x0D Response Valid response AA chk cr Invalid response AA chk cr no response Syntax error communication error or address error A delimiter character indicating a valid response A delimiter character indicating an invalid response AA 2 character HEX module address chk 2 character checksum If checksum is disabled no chk cr 0x0D Examples The alarm limit of count...

Page 66: ...If checksum is disabled no chk cr 0x0D Response Valid response AA data chk cr Invalid response AA chk cr no response Syntax error communication error or address error A delimiter character indicating a valid response A delimiter character indicating an invalid response AA 2 character HEX module address chk 2 character checksum If checksum is disabled no chk cr 0x0D Examples The Hi alarm limit of c...

Page 67: ...m If checksum is disabled no chk cr 0x0D Response Valid response AA chk cr Invalid response AA chk cr no response Syntax error communication error or address error A delimiter character indicating a valid response A delimiter character indicating an invalid response AA 2 character HEX module address chk 2 character checksum If checksum is disabled no chk cr 0x0D Examples The alarm limit of counter...

Page 68: ... If checksum is disabled no chk cr 0x0D Response Valid response AA chk cr Invalid response AA chk cr no response Syntax error communication error or address error A delimiter character indicating a valid response A delimiter character indicating an invalid response AA 2 character HEX module address chk 2 character checksum If checksum is disabled no chk cr 0x0D Examples The Hi Hi alarm limit of co...

Page 69: ... cr 0x0D Response Valid response AA chk cr Invalid response AA chk cr no response Syntax error communication error or address error A delimiter character indicating a valid response A delimiter character indicating an invalid response AA 2 character HEX module address data 8 character HEX value chk 2 character checksum If checksum is disabled no chk cr 0x0D Examples The alarm limit of counter 0 is...

Page 70: ...0x0D Response Valid response AA data chk cr Invalid response AA chk cr no response Syntax error communication error or address error A delimiter character indicating a valid response A delimiter character indicating an invalid response AA 2 character HEX module address data 8 character HEX value chk 2 character checksum If checksum is disabled no chk cr 0x0D Examples The Hi alarm limit of counter ...

Page 71: ... cr 0x0D Response Valid response AA chk cr Invalid response AA chk cr no response Syntax error communication error or address error A delimiter character indicating a valid response A delimiter character indicating an invalid response AA 2 character HEX module address data 8 character HEX value chk 2 character checksum If checksum is disabled no chk cr 0x0D Examples The alarm limit of counter 1 is...

Page 72: ...0D Response Valid response AA data chk cr invalid response AA chk cr no response Syntax error communication error or address error A delimiter character indicating a valid response A delimiter character indicating an invalid response AA 2 character HEX module address data 8 character HEX value chk 2 character checksum If checksum is disabled no chk cr 0x0D Examples The Hi Hi alarm limit of counter...

Page 73: ... the module The module returns EPROM data 4 Record the EEPROM data 5 Power down the module and disconnect the INIT _pin from the GND pin 6 Power up the module D O operation principles Refer to Digital output application notes on page 1 7 for more information The D O outputs of CB 7080 and CB 7080D modules are OFF on the first power up The D O outputs are changed to the desired state if the AADO0D ...

Page 74: ...d below using the relevant section of the following EC standards and other normative documents EU EMC Directive 89 336 EEC Essential requirements relating to electromagnetic compatibility EU 55022 Class B 1995 Radiated and conducted emission requirements for information technology equipment EN 50082 1 1997 EC generic immunity requirements EN 61000 4 2 1995 Electrostatic discharge immunity EN 61000...

Page 75: ...Measurement Computing Corporation 16 Commerce Boulevard Middleboro Massachusetts 02346 508 946 5100 Fax 508 946 9500 E mail info mcc com www mcc com ...

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