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M-7084 User Manual, Rev. A1.3 7PH-013-A13

131

A.6 Frequency Measurement

Frequency is usually measured by one of the following two
methods.
1.

by counting number of signal pulses during a known time
interval, gate time

2.

by counting number of pulses of a reference clock during
the signal period

M-7084 uses the second method for the frequency
measurement.  It counts number of pulses of the reference
clock during one signal period.  The drawback of this method
is that the resolution will be small when the frequency is high.
M-7084 provides the high frequency measurement mode by
counting 11 signal periods, instead of only one period, to
increase resolution.  The high frequency measurement mode
can be enabled by @AAFHVV command.  Refer to Section
2.29 for details.  The side effects of the high frequency
measurement mode are that it takes longer time and the
counting may overflow when the signal frequency is very low.
M-7084 can be set to automatic frequency measurement mode
by @AAFAVV command.  Refer to Section 2.27 for details.
In automatic frequency measurement mode, the channel is
switched to the high frequency measurement mode when the
signal frequency is high and to the low frequency
measurement mode when the signal frequency is low
automatically.

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Содержание I-7000 Series

Страница 1: ...f this product ICP DAS reserves the right to change this manual at any time without notification The information furnished by ICP DAS is believed to be accurate and reliable However no responsibility...

Страница 2: ...ng 12 1 6 1 M 7084 Wiring 12 1 6 2 Wiring Recommendations 12 1 7 Quick Start 13 1 8 Default Settings 15 1 9 Configuration Tables 16 1 10 M 7000 Notes 20 1 10 1 Protocol Switching 20 1 10 2 INIT Mode 2...

Страница 3: ...AABBVV 77 2 26 AAFA 79 2 27 AAFAVV 81 2 28 AAFH 83 2 29 AAFHVV 85 2 30 AAFT 87 2 31 AAFTVV 89 2 32 AAGN 91 2 33 AAPN Data 93 2 34 AASC 95 2 35 AASCVV 97 2 36 99 2 37 AA0 100 2 38 AA1 102 2 39 AA2 104...

Страница 4: ...84 User Manual Rev A1 3 7PH 013 A13 4 A Appendix 124 A 1 INIT Mode 124 A 2 Dual Watchdog Operation 126 A 3 Frame Ground 127 A 4 Node Information Area 129 A 5 Reset Status 130 A 6 Frequency Measurement...

Страница 5: ...mmable and transmission speeds of up to 115 2 Kbps can be selected The functionality of the M 7000 series is the same as the I 7000 series with the exception that the M 7000 series offers extended sup...

Страница 6: ...guration 1 5 7000 Dimensions For details of INIT mode operation please refer to Section A 1 INIT Mode For details of module watchdog and host watchdog please refer to Section A 2 Dual Watchdog Operati...

Страница 7: ...M 7084 User Manual Rev A1 3 7PH 013 A13 7 1 2 Terminal Assignment...

Страница 8: ...y Contact Wet Sink Source NPN PNP Sink Types Counter Frequency Encoder Counter Encoder Bits 32 bit 4 294 967 295 On Voltage Level 3 5 VDC 30 VDC Off Voltage Level 1 VDC Max Programmable Digital Filter...

Страница 9: ...solation Intra module Isolation Field to Logic 3000 VDC EMS Protection ESD IEC 61000 4 2 4 kV Contact for Each Terminal EFT IEC 61000 4 4 4 kV for Power Surge IEC 61000 4 5 3 kV for Power Line Power R...

Страница 10: ...M 7084 User Manual Rev A1 3 7PH 013 A13 10 1 4 Block Diagram 1 4 1 Block Diagram for the M 7084...

Страница 11: ...M 7084 User Manual Rev A1 3 7PH 013 A13 11 1 5 Dimensions Back View Top View Front View Side View Unit mm lnit Normal...

Страница 12: ...ring Recommendations Use 26 12 AWG wire for signal connections Strip the wire to a length of 7 0 5mm Use a crimp terminal for wiring Avoid high voltage cables and power equipment as much as possible F...

Страница 13: ...nge of 10 to 30 VDC 4 Configure the module by sending the AANNTTCCFF command and the AA7CNRVV command See Section 2 1 and 2 17 for details For M 7000 modules using the Modbus RTU protocol configure th...

Страница 14: ...Please refer to the I 7000 Bus Converter User s Manual and Getting Started For I 7000 Series Modules manuals for more details The Getting Started For I 7000 Series Modules manual can be downloaded fr...

Страница 15: ...M 7084 User Manual Rev A1 3 7PH 013 A13 15 1 8 Default Settings Default settings for the M 7084 modules are as follows Protocol Modbus RTU Module Address 01 Type Type 50 up counter Baud Rate 9600 bps...

Страница 16: ...9600 07 19200 08 38400 09 57600 0A 115200 Data Data Format 0 eight data bits no parity and one stop bit 1 eight data bits no parity and two stop bit 2 eight data bits even parity and one stop bit 3 ei...

Страница 17: ...ecimal point This data format is only for the frequency type 10 Hexadecimal CS Checksum setting 0 Disabled 1 Enabled RD Reserved Note The reserved bits should be zero Counter Type and Data Format Tabl...

Страница 18: ...unter will be increased by one for every falling edge of InA0 and decreased by one for every falling edge of InB0 Pulse direction Counting The InB0 is used for direction counting When InB0 is high the...

Страница 19: ...re Counting When InA0 is used as the A signal and InB0 is used as the B signal the counter will be increased by one when the InA0 phase leads by 90 degrees to InB0 and the counter will be decreased by...

Страница 20: ...Switching To switch to the DCON protocol 1 Set Modbus register 00257 to 0 See Section 3 1 for details 2 After a power on reset the communication protocol will be changed to DCON To switch to the Modbu...

Страница 21: ...for details and the communication settings are as follows 1 Address 00 2 Baud Rate 9600 bps 3 No checksum 4 Protocol DCON If communication with the module is not possible set the module to the INIT mo...

Страница 22: ...available Each is made of stainless steel which is stronger than those made of aluminum There is a screw at one end and a ring terminal is included so that it can be easily connected to the earth gro...

Страница 23: ...3 23 Part number Max number of modules Dimensions DRS 240 3 240mm x 35mm Part number Max number of modules Dimensions DRS 125 2 125mm x 35mm Note It is recommended that a 16 14 AWG wire is used to con...

Страница 24: ...M 7084 User Manual Rev A1 3 7PH 013 A13 24 1 11 2 Piggyback Mounting...

Страница 25: ...M 7084 User Manual Rev A1 3 7PH 013 A13 25 1 11 3 Wall Mounting...

Страница 26: ...hed to the cover of the module 2 Firmware version See Sections 2 19 and 3 1 for information regarding the command used to identify the firmware version 3 Host configuration type and operating system 4...

Страница 27: ...ommand All commands to the modules contain the ID address meaning that only the addressed module will respond The only exception to this is command Section 2 36 which is sent to all modules but the mo...

Страница 28: ...by 0FFh Example Command string 012 CR 1 Sum of the string 0 1 2 24h 30h 31h 32h B7h 2 Therefore the checksum is B7h and so CHKSUM B7 3 The command string with the checksum 012B7 CR Response string 01...

Страница 29: ...43 AARDVV AA Sets the Response Delay Time 2 44 AATnn AA Sets the Software INIT Timeout 2 45 Counter Frequency Command Sets Command Response Description Section AA Data Reads the Input Data of All Cha...

Страница 30: ...ncy Mode Status 2 27 AAFH AAVV Reads the High Frequency Mode Status 2 28 AAFHVV AA Sets the High Frequency Mode Status 2 29 AAFT AAVV Reads the Frequency Measurement Timeout 2 30 AAFTVV AA Sets the Fr...

Страница 31: ...to 00 for the M 7084 CC New Baud Rate code see Section 1 9 for details The INIT pin must be connected to ground in order to change Baud Rates For the module with frame ground this is achieved by movi...

Страница 32: ...le in hexadecimal format 00 to FF There will be no response if the command syntax is incorrect there is a communication error or there is no module with the specified address Examples Command 01020006...

Страница 33: ...and is received Changes to the Baud Rate and checksum settings take effect on the next power on reset 2 For the M 7084 changing the Baud Rate and checksum settings can be achieved using software only...

Страница 34: ...imiter character for an invalid response Data Data from every input channels see Section 1 9 for the details of data format There will be no response if the command syntax is incorrect there is a comm...

Страница 35: ...valid Response AA CHKSUM CR Delimiter character for a valid response Delimiter character for an invalid response An invalid command is returned if the specified channel is incorrect Data Input data of...

Страница 36: ...nse 00001234 Reads data from channel 2 of module 03 Command 029 Response 02 Reads data from channel 9 of module 02 An error is returned because channel 9 is invalid Related Commands Section 2 1 AANNTT...

Страница 37: ...he channel to be read 0 7 Response Valid command AA Data CHKSUM CR Invalid command AA CHKSUM CR Delimiter character for a valid command Delimiter character for an invalid command AA Address of the res...

Страница 38: ...pass filter time should be the same for channel 0 and 1 When it is set to either one of the channel 0 or 1 both channels will be set to the same value 2 The low pass filter time should be the same fo...

Страница 39: ...es the channel to be read 0 7 Data Low pass filter time is micro seconds consisting of 5 decimal digits in the range 00001 32767 Response Valid command AA Data CHKSUM CR Invalid command AA CHKSUM CR D...

Страница 40: ...r time should be the same for channel 0 and 1 When it is set to either one of the channel 0 or 1 both channels will be set to the same value 2 The low pass filter time should be the same for channel 2...

Страница 41: ...CHKSUM CR Delimiter character for a valid command Delimiter character for an invalid command AA Address of the responding module 00 to FF TT Type code of the module should be 00 for M 7084 CC Baud Ra...

Страница 42: ...084 User Manual Rev A1 3 7PH 013 A13 42 Examples Command 012 Response 01000600 Reads the configuration of module 01 Related Commands Section 2 1 AANNTTCCFF Related Topics Section 1 9 Configuration Tab...

Страница 43: ...channel N Specifies the channel to be read 0 7 Response Valid command AA Data CHKSUM CR Invalid command AA CHKSUM CR Delimiter character for a valid command Delimiter character for an invalid command...

Страница 44: ...2 Response 01FFFFFFFF Reads the channel 2 maximum counter value of module 01 and the module responds with FFFFFFFF Related Commands Section 2 8 AA3N Data Note The maximum counter value is only availab...

Страница 45: ...f a channel N Specifies the channel to be read 0 7 Data The maximum counter value in eight hexadecimal digits Response Valid command AA Data CHKSUM CR Invalid command AA CHKSUM CR Delimiter character...

Страница 46: ...2F0000000 Response 01 Sets the channel 2 maximum counter value of module 01 to 0xF0000000 and returns a valid response Related Commands Section 2 7 AA3N Note The maximum counter value is only availabl...

Страница 47: ...M CR Delimiter character for a valid command Delimiter character for an invalid command AA Address of the responding module 00 to FF VV A two digit hexadecimal value where bit 0 corresponds to channel...

Страница 48: ...mmand 014 Response 013A Reads the low pass filter enabled disabled status for module 01 and returns a response of 3A meaning that low pass filter for channels 1 3 4 and 5 are enabled and disabled for...

Страница 49: ...channel 0 bit 1 corresponds to channel 1 etc When the bit is 1 it means that the low pass filter is enable for the channel and 0 means that the low pass filter is disabled for the channel Response Va...

Страница 50: ...A1 3 7PH 013 A13 50 Examples Command 0143A Response 01 Enables the low pass filter of channels 1 3 4 and 5 and disables all other channels of module 01 The module returns a valid response Related Com...

Страница 51: ...d command Delimiter character for an invalid command AA Address of the responding module 00 to FF S Reset status of the module 1 This is the first time the command has been sent since the module was p...

Страница 52: ...ule 01 The response shows that it is the first time the AA5 command has been sent since the module was powered on Command 015 Response 010 Reads the reset status of module 01 The response shows that t...

Страница 53: ...the bit is 1 it means that the channel is counting and 0 means that the channel is not counting Response Valid Response AA CHKSUM CR Invalid Response AA CHKSUM CR Delimiter character for a valid respo...

Страница 54: ...le 01 The module returns a valid response Command 016 Response 013A Reads the counting status of module 01 and returns a response of 3A meaning that channels 1 3 4 and 5 are counting and all other cha...

Страница 55: ...Response AA CHKSUM CR Delimiter character for a valid response Delimiter character for an invalid response AA Address of the responding module 00 to FF VV A two digit hexadecimal value where bit 0 cor...

Страница 56: ...e 01 The module returns a valid response Command 016 Response 013A Reads the counting status of module 01 and returns a response of 3A meaning that channels 1 3 4 and 5 are counting and all other chan...

Страница 57: ...mmand to clear the counter value N Specifies the channel to be cleared 0 7 Response Valid command AA CHKSUM CR Invalid command AA CHKSUM CR Delimiter character for a valid command Delimiter character...

Страница 58: ...ears the counter value of channel 1 of module 01 and the module returns a valid response Related Commands Section 2 15 AA7 Notes 1 The overflow status is cleared by the command too 2 The command is no...

Страница 59: ...elimiter character for a valid command Delimiter character for an invalid command AA Address of the responding module 00 to FF VV A two digit hexadecimal value where bit 0 corresponds to channel 0 bit...

Страница 60: ...no module with the specified address Examples Command 017 Response 013A Reads the counter overflow status for module 01 and returns a response of 3A meaning that counters of channels 1 3 4 and 5 are o...

Страница 61: ...e where bit 0 corresponds to channel 0 bit 1 corresponds to channel 1 etc When the bit is 1 it means that the counter overflow status of the channel should be cleared Response Valid Command AAVV CHKSU...

Страница 62: ...nd 0173A Response 01 Clears the counter overflow status of channels 1 3 4 and 5 for module 01 and returns a valid response Related Commands Section 2 15 AA7 Note The command is not available to the ch...

Страница 63: ...nel to be set 0 7 RVV VV represents the type code of the channel to be set Refer to the Analog Input Type Setting table in Section 1 9 for details Response Valid Response AA CHKSUM CR Invalid Response...

Страница 64: ...sponse Command 037C1R30 Response 03 Sets the type code for channel 1 of module 03 to be 30 The module returns an invalid response because the type code is invalid Related Commands Section 2 18 AA8CN R...

Страница 65: ...ess for the type code information N 0 7 Response Valid Response AACNRVV CHKSUM CR Invalid Response AA CHKSUM CR Delimiter character for a valid response Delimiter character for an invalid response or...

Страница 66: ...is incorrect there is a communication error or there is no module with the specified address Examples Command 018C0 Response 01C0R50 Reads the channel 0 input range of module 01 and returns 50 up coun...

Страница 67: ...racter for a valid command Delimiter character for an invalid command AA Address of the responding module 00 to FF Data Firmware version string of the module There will be no response if the command s...

Страница 68: ...S CHKSUM CR Invalid Response AA CHKSUM CR Delimiter character for a valid response Delimiter character for an invalid response AA Address of the responding module 00 to FF S INIT status 0 the INIT pin...

Страница 69: ...M 7084 User Manual Rev A1 3 7PH 013 A13 69 Examples Command 01I Response 010 Reads the INIT status of module 01 and the module responds with 0 meaning that the INIT pin is shorted to GND...

Страница 70: ...command AA CHKSUM CR Delimiter character for a valid command Delimiter character for an invalid command AA Address of the responding module 00 to FF Name Name string of the module There will be no re...

Страница 71: ...nse Delimiter character for an invalid response AA Address of the responding module 00 to FF S The protocols supported by the module 0 only DCON protocol is supported 1 both the DCON and Modbus RTU pr...

Страница 72: ...1P Response 0110 Reads the communication protocol of module 01 and returns a response of 10 meaning that it supports both the DCON and Modbus RTU protocols and the protocol that will be used at the ne...

Страница 73: ...mmand the rear slide switch must be in the INIT position The new protocol is saved in the EEPROM and will be effective after the next power on reset Response Valid Response AASC CHKSUM CR Invalid Resp...

Страница 74: ...Sets the communication protocol of module 01 to Modbus RTU and returns an invalid response because the module is not in INIT mode Command 01P1 Response 01 Sets the communication protocol of module 01...

Страница 75: ...limiter character for a valid command Delimiter character for an invalid command AA Address of the responding module 00 to FF VV A two digit hexadecimal value where bit 0 corresponds to channel 0 bit...

Страница 76: ...counter status for module 01 and returns a response of 3A meaning that battery backup counter for channels 1 3 4 and 5 are enabled and disabled for all other channels Related Commands Section 2 25 AAB...

Страница 77: ...nds to channel 0 bit 1 corresponds to channel 1 etc When the bit is 1 it means that the battery backup counter is enabled for the channel and 0 means that the battery backup counter is disabled for th...

Страница 78: ...esponse 01 Sets the battery backup counter function of channels 1 3 4 and 5 for module 01 to be enabled and returns a valid response Related Commands Section 2 24 AABB Note The command is not availabl...

Страница 79: ...limiter character for a valid command Delimiter character for an invalid command AA Address of the responding module 00 to FF VV A two digit hexadecimal value where bit 0 corresponds to channel 0 bit...

Страница 80: ...01 and returns a response of 3A meaning that automatic frequency mode for channels 1 3 4 and 5 are enabled and disabled for all other channels Related Commands Section 2 27 AAFAVV Related Topics Sect...

Страница 81: ...annel 0 bit 1 corresponds to channel 1 etc When the bit is 1 it means that the automatic frequency mode is enabled for the channel and 0 means that the automatic frequency mode is disabled for the cha...

Страница 82: ...es the automatic frequency mode of channels 1 3 4 and 5 for module 01 and returns a valid response Related Commands Section 2 26 AAFA Related Topics Section A 6 Frequency Measurement Note The command...

Страница 83: ...limiter character for a valid command Delimiter character for an invalid command AA Address of the responding module 00 to FF VV A two digit hexadecimal value where bit 0 corresponds to channel 0 bit...

Страница 84: ...1 and returns a response of 3A meaning that battery backup counter for channels 1 3 4 and 5 are enabled and disabled for all other channels Related Commands Section 2 29 AAFHVV Related Topics Section...

Страница 85: ...l 0 bit 1 corresponds to channel 1 etc When the bit is 1 it means that the high frequency mode is enabled for the channel and 0 means that the high frequency mode is disabled for the channel Response...

Страница 86: ...3 4 and 5 for module 01 and returns a valid response Related Commands Section 2 28 AAFH Related Topics Section A 6 Frequency Measurement Note 1 The command is only available to the channels that are...

Страница 87: ...Valid Command AAVV CHKSUM CR Invalid Command AA CHKSUM CR Delimiter character for a valid command Delimiter character for an invalid command AA Address of the responding module 00 to FF VV Two hexade...

Страница 88: ...hat frequency measurement timeout value is 1 second Related Commands Section 2 31 AAFTVV Related Topics Section A 6 Frequency Measurement Note 1 The command is only available to the channels that are...

Страница 89: ...wo hexadecimal digits to represent the timeout value in tenths of a second for example 01 denotes 0 1 seconds and FF denotes 25 5 seconds Response Valid Command AA CHKSUM CR Invalid Command AA CHKSUM...

Страница 90: ...nd returns a valid response Related Commands Section 2 30 AAFT Related Topics Section A 6 Frequency Measurement Note 1 The command is only available to the channels that are set to type code 51 freque...

Страница 91: ...channel N Specifies the channel to be read 0 7 Response Valid command AA Data CHKSUM CR Invalid command AA CHKSUM CR Delimiter character for a valid command Delimiter character for an invalid command...

Страница 92: ...2 Response 0100000000 Reads the channel 2 maximum counter value of module 01 and the module responds with 00000000 Related Commands Section 2 33 AAPN Data Note The preset counter value is only availab...

Страница 93: ...f a channel N Specifies the channel to be read 0 7 Data The preset counter value in eight hexadecimal digits Response Valid command AA Data CHKSUM CR Invalid command AA CHKSUM CR Delimiter character f...

Страница 94: ...P2F0000000 Response 01 Sets the channel 2 preset counter value of module 01 to 0xF0000000 and returns a valid response Related Commands Section 2 32 AAGN Note The preset counter value is only availabl...

Страница 95: ...limiter character for a valid command Delimiter character for an invalid command AA Address of the responding module 00 to FF VV A two digit hexadecimal value where bit 0 corresponds to channel 0 bit...

Страница 96: ...erflow status for module 01 and returns a response of 3A meaning that stop counting on overflow for channels 1 3 4 and 5 are enabled and disabled for all other channels Related Commands Section 2 35 A...

Страница 97: ...nel 0 bit 1 corresponds to channel 1 etc When the bit is 1 it means that the stop counting on overflow is enabled for the channel and 0 means that the stop counting on overflow is disabled for the cha...

Страница 98: ...1SC3A Response 01 Enables the stop counting on overflow of channels 1 3 4 and 5 for module 01 and returns a valid response Related Commands Section 2 34 AASC Note The command is only available to the...

Страница 99: ...ost is OK Syntax CHKSUM CR Delimiter character Host OK command Response No response Examples Command No response Sends a Host OK command to all modules Related Commands Section 2 37 AA0 Section 2 38 A...

Страница 100: ...r character for a valid command Delimiter character for an invalid command AA Address of the responding module 00 to FF SS Two hexadecimal digits that represent the host watchdog status where Bit 7 0...

Страница 101: ...00 Reads the host watchdog status of module 01 and returns 00 meaning that the host watchdog is disabled and no host watchdog timeout has occurred Command 020 Response 0204 Reads the host watchdog sta...

Страница 102: ...00 to FF 1 Command to reset the host watchdog timeout status Response Valid command AA CHKSUM CR Invalid command AA CHKSUM CR Delimiter character for a valid command Delimiter character for an invalid...

Страница 103: ...urred Command 011 Response 01 Resets the host watchdog timeout status of module 01 and returns a valid response Command 010 Response 0100 Reads the host watchdog status of module 01 and shows that no...

Страница 104: ...command AA CHKSUM CR Delimiter character for a valid command Delimiter character for an invalid command AA Address of the responding module 00 to FF E 1 the host watchdog is enabled 0 the host watchd...

Страница 105: ...host watchdog timeout value of module 01 and returns FF which denotes that the host watchdog is enabled and the host watchdog timeout value is 25 5 seconds Related Commands Section 2 36 Section 2 37 A...

Страница 106: ...g 0 disable the host watchdog VV Two hexadecimal digits to represent the timeout value in tenths of a second for example 01 denotes 0 1 seconds and FF denotes 25 5 seconds Response Valid command AA CH...

Страница 107: ...s the host watchdog timeout value of module 01 The module returns 164 which denotes that the host watchdog is enabled and the host watchdog timeout value is 10 0 seconds Related Commands Section 2 36...

Страница 108: ...Response Valid Response AA CHKSUM CR Invalid Response AA CHKSUM CR Delimiter character for a valid response Delimiter character for an invalid response AA Address of the responding module 00 to FF Th...

Страница 109: ...M 7084 User Manual Rev A1 3 7PH 013 A13 109 Related Topics Section A 1 INIT Mode Note The AATnn command should be sent prior to sending this command see Section 2 45 for details...

Страница 110: ...set the module name Name New name of the module max 6 characters Response Valid command AA CHKSUM CR Invalid command AA CHKSUM CR Delimiter character for a valid command Delimiter character for an inv...

Страница 111: ...3 A13 111 Examples Command 01O7084N Response 01 Sets the name of module 01 to be 7084N and returns a valid response Command 01M Response 017084N Reads the name of module 01 and returns the name 7084N...

Страница 112: ...VV CHKSUM CR Invalid command AA CHKSUM CR Delimiter character for a valid command Delimiter character for an invalid command AA Address of the responding module 00 to FF VV Two hexadecimal digits to r...

Страница 113: ...Rev A1 3 7PH 013 A13 113 Examples Command 01RD Response 0102 Reads the response delay time value of module 01 and returns 02 which denotes that the response delay time value is 2ms Related Commands S...

Страница 114: ...o represent the response delay time value in milli second for example 01 denotes 1ms and 1E denotes 30s The max allowable value is 30 1Eh Response Valid command AA CHKSUM CR Invalid command AA CHKSUM...

Страница 115: ...nse 01 Sets the response delay time value to 6ms The module returns a valid response Command 01RD Response 0106 Reads the response delay time value of module 01 The module returns 06 which denotes tha...

Страница 116: ...ting the time out value in seconds The max time out value is 60 seconds When changing the Baud Rate or checksum settings without altering the INIT pin the AAI and AANNTTCCFF commands should be sent co...

Страница 117: ...01 Sets the soft INIT of module 01 and returns a valid response Command 0101000700 Response 01 Attempts to change the Baud Rate of module 01 to 19200 without first altering the INIT pin The module re...

Страница 118: ...118 Related Commands Section 2 1 AANNTTCCFF Section 2 41 AAI Related Topics Section A 1 INIT Mode Note It is recommended that the soft INIT time out value is reset to 0 once any changes to Baud Rate a...

Страница 119: ...ity data bits and stop bits can be set as N81 N82 E81 and O81 The following Modbus functions are supported Function code Description 01 0x01 Read coils 02 0x02 Read discrete inputs 03 0x03 Read multip...

Страница 120: ...1 32767 R W 40164 Low pass filter time for channel 4 to 7 in us 1 32767 R W 40257 40264 Type code of channel 0 to 7 R W 40481 Firmware version low word R 40482 Firmware version high word R 40483 Modu...

Страница 121: ...ost watch dog timeout status R W 00273 Reset status 1 first read after powered on 0 not the first read after powered on R 00513 00520 Write 1 to clear counter 0 7 W 00769 00776 Enable battery backup f...

Страница 122: ...bleshooting If you are having difficulty using the I 7000 or M 7000 module here are some suggestions that may help If you cannot find the answers you need in these guides contact ICP DAS Product Suppo...

Страница 123: ...her the module has received a command sent from the host If possible use another device to check whether the host can communicate with the device through the same RS 485 network If the host is a PC in...

Страница 124: ...s unknown To help avoid this problem the I 7000 and M 7000 series has a special mode called INIT mode When the module is powered on in INIT mode the configuration of the module is reset as follows all...

Страница 125: ...connecting the INIT terminal to the GND terminal New I 7000 and M 7000 modules have the INIT switch located on the rear side of the module to allow easier access to the INIT mode For these modules IN...

Страница 126: ...on that monitors the operating status of the host Its purpose is to prevent problems due to network communication errors or host malfunctions When a host watchdog timeout occurs the module will reset...

Страница 127: ...ssing ESD allowing enhanced static protection ESD capability and ensures that the module is more reliable Either of the following options will provide a better protection for the module 1 If the modul...

Страница 128: ...an easily be connected to the earth ground Each is made of stainless steel which is stronger than those made of aluminum There is a screw at one end and a ring terminal is included as shown in the fig...

Страница 129: ...tc One minor drawback is that there are no visual indications of the configuration of the module New I 7000 and M 7000 modules include node information areas that are protected by a cover as shown bel...

Страница 130: ...t AA5 command This can be used to check whether the module had been reset When the AA5 command responds that the reset status is cleared that means the module has not been reset since the last AA5 com...

Страница 131: ...84 provides the high frequency measurement mode by counting 11 signal periods instead of only one period to increase resolution The high frequency measurement mode can be enabled by AAFHVV command Ref...

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