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General Reference Guide IO Servers Configuration After the numerical value, the characters F, L, I, D or W can be used to specify how to read the value. The following table describes the different character meaning. Character Description (*) Important: To avoid loss of precision due to Integer to float conversion, choose the right storage DataType for your Tag. See "DataType of Tags" on page 75 When reading a 32 bits value, two consecutive registers or coils are read and combined e.g. 40001L,11 to access in Long representation the reg 1 on the slave 11. examples: Automatic Tag type W Reads 1 register considered as 16 bits unsigned integer (DEFAULT IF NOT SPECIFIED) DWord I Reads 1 register considered as 16 bits signed integer Integer D Reads 2 regs R1, R2 as a DWORD R1 is Less significant, R2 is most significant (32 bits, unsigned) (*) DWord E Reads 2 regs R1, R2 as a DWORD R2 is Less significant, R1 is most significant (32 bits, unsigned) (*) DWord L Reads 2 regs R1, R2 as a LONG R1 is Less significant, R2 is most significant (32 bits, signed) (*) Integer M Reads 2 regs R1, R2 as a LONG R2 is Less significant, R1 is most significant (32 bits, signed) (*) Integer F Reads 2 regs R1, R2 as a FLOAT R1 is Less significant, R2 is most significant (32 bits, signed) Float H Reads 2 regs R1, R2 as a FLOAT R2 is Less significant, R1 is most significant (32 bits, signed) Float Table 68: the characters used to specify how to read the value address meaning 40001,10 access the Holding Register at address 1 on the UnitID 10 1,11 access the Coil at address 1 on the UnitID 11 +320234,12 access the Input Register at address 20234 on the UnitID 12 40001,100,10.0.0.53 access the Hoding Register at address 1 on the UnitID 100 at IP address 10.0.0.53 40010L,12 access the LONG Holding Register at address 10 (and 11) on the UnitID 12 40008F,15 access the FLOAT Holding Register at address 8 (and 9) on the UnitID 15 Table 69: Modbus address examples STATUS TAG: The STATUS Tag is a special Tag that returns information about the current state of the communication for a given device. As for other Tags, the status Tag ItemName is composed of: Status,Address If the address is omitted, the Topic address will be used (e.g.: status,11) points to the status of the slave 11 You can define a status Tag for each address used. If you use the status MODBUS address, the Tag must be configured as analog: Tag value Meaning 0 Communication not initialized. Status UNKNOWN. If no Tag is polled on that device address, the communication status is unknown. 1 Communication OK. 2 Communication NOT OK. Table 70: MODBUS status values RG-001-0-EN ver 1.14 eWON® - 02/05/2012 - ©eWON sa Page 101
5.3.3.2 Slave Address This is the address of the slave device that you want to access. It is a number from 0 to 255. Example: General Reference Guide IO Servers Configuration 5.3.3.3 IP Address This is the IP address of the device on an Ethernet network. It is composed of 4 numbers separated by a dot. Example: 5.3.3.4 Device specific information Warning for new users of WAGO modules: Keep in mind that coil read and write don’t use the same address (offset of 0x200); please consult the Wago documentation. Example: If you use Wago systems with two digital inputs and two digital outputs, inputs have addresses 1 and 2, and outputs have the same. The only way to distinguish them it’s the read-only access or R/W access. Tags: station 11 30001,11 Polls a RTU device at address 11. 30001,11,10.0.0.50 Polls a device configured with IP address 10.0.0.50 and with Modbus slave address 11. Tag Modbus address Comment MB_DigIn1 10001,11 Digital input module 1 -- read-only MB_DigIn2 10002,11 Digital input module 2 -- read-only MB_DigOut1 00001,11 Digital output module 1 for writing - Encode all leading zeroes! MB_DigOut1Read 10513,11 Digital output module 1 for reading only MB_DigOut2 00002,11 Digital output module 2 for writing Encode all leading zeroes! MB_DigOut2Read 10514,11 Digital output module 2 for reading only Table 71: Wago modules - addresses examples In View I/O page, you can change the value of MB_DigOut1 with the update link (set to 1), and if you do that, you view that the value read is always 0. Why? Because the eWON reads the value at the WAGO address 1 (thus, DigIn1)! If you want to read the state of the DigOut1, you must read it at WAGO address 513! The same remark is applied for analog Modbus registers. It’s the documented behavior of Wago-Modbus modules; keep it in mind. RG-001-0-EN ver 1.14 eWON® - 02/05/2012 - ©eWON sa Page 102
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eWON Family 500, 2001, 2001CD, 4001
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Table of content 5.4.3 Tag name con
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Table of content 8.3.3 $dtRL [Real
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2 The eWON login page 2.1 Access fr
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3.2 Users Setup The Users Setup pag
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3.2.5 User’s directory restrictio
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3.3 System Setup General Reference
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3.3.1.2 Alarms (globals parameters)
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3.3.1.5 Task Planner Since Firmware
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3.3.1.5.2 Edit Action page When you
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General Reference Guide eWON Config
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When using modem port for VCOM, the
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3.3.2.7 SNMP Setup 3.3.2.7.1 Commun
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3.3.3 Diagnosis 3.3.3.1 Overview Ge
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3.3.3.4 Debug Control Description L
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3.3.4.1.1 Modem setup page Warning:
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3.3.4.1.1.4 PSTN: Leased line confi
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3.3.4.1.2 Ethernet LAN & WAN From t
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Each mechanisms provides you all or
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Select next server in case of error
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3.3.4.2.3 ADSL General Reference Gu
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VPN between two eWONs General Refer
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General Reference Guide IO Servers
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5.15.2.2 Topic configuration Genera
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General Reference Guide IO Servers
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5.16.3 Tag name convention General
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5.17 MITSUBISHI MELSEC IO Server 5.
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Note: The Modifier can be omitted,
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6.1 Real-time screen General Refere
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General Reference Guide Monitoring
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6.4 Real time Alarm screen Figure 1
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6.6 Files transfer This link gives
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General Reference Guide Monitoring
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6.7.2.1 Memory Information 6.7.2.2
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6.7.2.5 Info 6.7.3 Scheduled Action
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6.7.4.2 Activate Energy debug mode
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6.7.5 ADSL Log General Reference Gu
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General Reference Guide Retrieving
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8 Export Block Descriptor Exports a
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8.2.3 $st [Start Time] and $et [End
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8.3 Data Types description and synt
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8.3.2 $dtHT [Historical Table] Gene
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8.3.3 $dtRL [Real time Logging] Gen
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8.3.5 $dtAR [Alarm Real time] 8.3.5
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8.3.7 $dtSS [Scheduled Status] Gene
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8.3.9 $dtUF [User File] 8.3.9.1 Exp
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8.3.10 $dtIV [Instant Values] Gener
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General Reference Guide Export Bloc
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8.3.12 $dtPP General Reference Guid
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8.3.15 $dtRE [Real Time Diagnostic]
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8.3.16.5 Examples $dtTR $fnmytar.ta
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The new firmware is uploaded to the
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9.3 Upgrading the eWON firmware by
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10 Appendix 10.1 Access to the eWON
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10.5 Resetting the eWON 10.5.1 Over
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10.6 Table of comparisons between e
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10.9 GSM modem Led behavior Figure
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