Vega VEGAMET 624 User manual

Supplementary instructions manual
Modbus-TCP,VEGA ASCII protocol
VEGAMET 624/625,VEGASCAN 693,PLICSRADIO
®
C62
Signal conditioning instruments
and communication
in out

Contents
1Function as Modbus-TCP server
1.1Modbus-TCP -general description . . . . . . . . . . 3
1.2Filing of the measured value as 2byte short . . . 3
1.3Filing of measured value as 4Byte Float. . . . . . 6
2VEGA ASCII protocol
2.1Measured value enquiry via ASCII protocol . . . . 10
2.2Overview of the commands and options . . . . . . 11
2.3Version enquiry with command VERSION . . . . . 12
2.4Help with command HELP . . . . . . . . . . . . . . . . 12
2.5Delete the settings with the command
CLEARSTORE . . . . . . . . . . . . . . . . . . . . . . . . 13
2.6Measured value enquiry with command %. . . . 13
2.7Measured value enquiry with command &. . . . . 18
2.8Measured value enquiry with command?. . . . . . 24
2.9Measured value enquiry with command $. . . . . 29
2.10 Option TIME . . . . . . . . . . . . . . . . . . . . . . . . . . 35
2.11 Option REPEAT x. . . . . . . . . . . . . . . . . . . . . . 35
2.12 Option STORE . . . . . . . . . . . . . . . . . . . . . . . . 36
2.13 Option SUM . . . . . . . . . . . . . . . . . . . . . . . . . . 36
2Modbus-TCP,VEGA ASCII protocol -VEGAMET 624/625,VEGASCAN 693,PLICSRADIO
Contents
30768-EN-070730

1Function as Modbus-TCP server
1.1Modbus-TCP -general description
VEGAMET 624/625,VEGASCAN 693 and PLICSRADIO
®
C62 signal conditioning instruments work as Modbus-TCP
server and provide the existing PC/DCS value and relay
switching conditions in a temporary storage for collection via
Modbus-TCP.
The instruments stick to the "Open Modbus-TCP-Specifica-
tion"Release 1.0of Schneider Electric.This standard is
supported by many process control systems,Remote IOs,
visualisation programs and OPC servers.Communication is
carried out via Port 502.
Apart from PC/DCS values there is the possibility to enquire
the switching conditions of the relay outputs.
The enquiry of the PC/DCS values and relay values is made
via the appropriate function code (see also Modbus specifi-
cation).
lFunction code 01:Read Coil Status (enquiry of the relay
values)
lFunction code 02:Read Input Status (enquiry of the relay
values)
lFunction code 03:Read Holding Registers (enquiry of the
PC/DCS values)
lFunction code 04:Read Input Registers (enquiry of the PC/
DCS values)
These function codes are normally available as library
enquiries in the PLC (e.g.Modicon).
VEGAMET 624/625 and PLICSRADIO
®
C62 can provide up to
six PC/DCS outputs,VEGASCAN 693 up to 30.There are also
four relay values (one fail safe relay,three level relais,with
VEGASCAN one fail safe relay).
Via the selected PC/DCS output you define where the
respective measured value can be collected within the
temporary memory.The configuration of the PC/DCS outputs
is carried out via PACTware™/DTM.
1.2Filing of the measured value as 2byte short
The adressing of the PC/DCS values for Modbus systems is
carried out "Word-orientated".In the temporary memory,aPC/
PC/DCS output
Modbus-TCP,VEGA ASCII protocol -VEGAMET 624/625,VEGASCAN 693,PLICSRADIO 3
Function as Modbus-TCP server
30768-EN-070730

DCS value is represented by two words.The first word
contains the real PC/DCS value,the next higher word the
corresponding status information.In the specification the term
register word is also used instead of word.
The filing of measured values in the temporary memory is
always sorted according to PC/DCS output number.The
following chart shows the addressing of the temporary memory
via Modbus.
Register address in
Modicon
Temporary memory of VEGAMET/PLICSRA-
DIO (1word =2byte)
30001 PC/DCS output 1:Measured value
30002 PC/DCS output 1:Status
30003 PC/DCS output 2:Measured value
30004 PC/DCS output 2:Status
30005 PC/DCS output 3:Measured value
30006 PC/DCS output 3:Status
30007 PC/DCS output 4:Measured value
30008 PC/DCS output 4:Status
30009 PC/DCS output 5:Measured value
30010 PC/DCS output 5:Status
30011 PC/DCS output 6:Measured value
30012 PC/DCS output 6:Status
Register address in
Modicon
Temporary memory of VEGASCAN (1word =
2byte)
30001 PC/DCS output 1:Measured value
30002 PC/DCS output 1:Status
30003 PC/DCS output 2:Measured value
30004 PC/DCS output 2:Status
30005 PC/DCS output 3:Measured value
30006 PC/DCS output 3:Status
30007 PC/DCS output 4:Measured value
30008 PC/DCS output 4:Status
30009 PC/DCS output 5:Measured value
30010 PC/DCS output 5:Status
30011 PC/DCS output 6:Measured value
4Modbus-TCP,VEGA ASCII protocol -VEGAMET 624/625,VEGASCAN 693,PLICSRADIO
Function as Modbus-TCP server
30768-EN-070730

Register address in
Modicon
Temporary memory of VEGASCAN (1word =
2byte)
30012 PC/DCS output 6:Status
… …
30057 PC/DCS output 29:Measured value
30058 PC/DCS output 29:Status
30059 PC/DCS output 30:Measured value
30060 PC/DCS output 30:Status
Aa an alternative,register address 40001 is also available as
start address (function code 03).
The actual measured values are transmitted as signed data
comprising two octets.This means that the value range
encompasses max.+32768 to -32767.In addition to the
measured value,the status of the measured value is delivered
in a second register word.
Example of the data of a PC/DCS output
Measured value Status
Register addr.30001 Register addr.30002
High-Byte/Low-Byte High-Byte/Low-Byte
The status describes the condition of the associated measured
value.The content of the measured value is only valid if the
corresponding status has the value zero.If there is a status
value unequal zero,the status value and the corresponding
value in the measured value field must be taken into account in
a detailed failure diagnosis.The following chart explains the
possible faults.
Status Measured val-
ue
Meaning
0x00 0xXXXX Valid measured value
0xXX 0x8000 An error number is transmitted in the status
corresponding to the error codes Exx (e.g.29 =
E29 =Simulation).
0xXX 0x00XX An error number is transmitted in the status and
in the measured value which corresponds to the
error codes Exx.Must be configured via DTM.
Format of the PC/DCS value
Modbus-TCP,VEGA ASCII protocol -VEGAMET 624/625,VEGASCAN 693,PLICSRADIO 5
Function as Modbus-TCP server
30768-EN-070730

Note:
When transmitting the PC/DCS value in Modbus-TCP protocol
(measured value filing as 2byte short), the decimal point is not
transmitted,the value -0,5bar is transmitted as -50.If the data
format was selected in such a way that values outside the
value range can be caused,limitation to the highest value of
the value range is made.
Example:Percent was selected as "Reference value "and #.
### as "Data format ".With this setting,the value 100 %should
be transmitted as 100000 which is outside the valid range of
max.+32767.This means that a limit will be imposed and
32767 transmitted instead.To avoid this,"Data format "#.##
should be chosen so that the value 100 %is transmitted as
10000.
Note:
With the switching inputs of PLICSRADIO
®
C62 (measure-
ment loops 4…6)the value 0(switch open)and 100 (switch
closed)are transmitted as measured values,the units are
deleted.
The switching conditions of the relay are transferred as bit
information.
The following equivalencies apply to the switching relays:
l0=Switching status Off
l1=Switching status On
The following equivalencies apply to the fail safe relay:
l0=Failure message Off,relay switching condition On
l1=Failure message Off,relay switching condition Off
The following chart shows the addressing of the temporary
memory via Modbus.
Register address in
Modicon
Temporary memory of VEGAMET/PLICSRA-
DIO (1bit)
10001 Fail safe relay
10002 Relay 1
10003 Relay 2
10004 Relay 3
1.3Filing of measured value as 4Byte Float
The filing of measured values in the temporary memory is
Filing of the relay values
6Modbus-TCP,VEGA ASCII protocol -VEGAMET 624/625,VEGASCAN 693,PLICSRADIO
Function as Modbus-TCP server
30768-EN-070730

always sorted according to PC/DCS output number.The
following chart shows the addressing of the temporary memory
via Modbus.The values are accessed via FC 3and 4.The
status information is also transmitted as float value.8byte are
needed for one output,corresponding to 4registers.
Information:
Note:Afloat value comprises 2registers,i.e.a total of 4bytes!
Register address in
Modicon
Temporary memory of VEGAMET/PLICSRA-
DIO (2words =4byte)
31001 PC/DCS output 1:Measured value
31003 PC/DCS output 1:Status
31005 PC/DCS output 2:Measured value
31007 PC/DCS output 2:Status
31009 PC/DCS output 3:Measured value
31011 PC/DCS output 3:Status
31013 PC/DCS output 4:Measured value
31015 PC/DCS output 4:Status
31017 PC/DCS output 5:Measured value
31019 PC/DCS output 5:Status
31021 PC/DCS output 6:Measured value
31023 PC/DCS output 6:Status
Register address in
Modicon
Temporary memory of VEGASCAN (2words =
4byte)
31001 PC/DCS output 1:Measured value
31003 PC/DCS output 1:Status
31005 PC/DCS output 2:Measured value
31007 PC/DCS output 2:Status
31009 PC/DCS output 3:Measured value
31011 PC/DCS output 3:Status
31013 PC/DCS output 4:Measured value
31015 PC/DCS output 4:Status
31017 PC/DCS output 5:Measured value
31019 PC/DCS output 5:Status
31021 PC/DCS output 6:Measured value
Modbus-TCP,VEGA ASCII protocol -VEGAMET 624/625,VEGASCAN 693,PLICSRADIO 7
Function as Modbus-TCP server
30768-EN-070730

Register address in
Modicon
Temporary memory of VEGASCAN (2words =
4byte)
31023 PC/DCS output 6:Status
… …
31113 PC/DCS output 29:Measured value
31115 PC/DCS output 29:Status
31117 PC/DCS output 30:Measured value
31119 PC/DCS output 30:Status
As an alternative,register address 41001 is also available as
start address (function code 03).
The actual measured values are transmitted as signed data
comprising four octets.In addition to the measured value,the
status of the measured value is supplied in a second register
word.
Example of the data of a PC/DCS output
Float Bit 15…0Float Bit 31…16
Register addr.31001 Register addr.31002
High-Byte/Low-Byte High-Byte/Low-Byte
Note:
With the switching inputs of PLICSRADIO
®
C62 (measure-
ment loops 4…6)the value 0(switch open)and 100 (switch
closed)are transmitted as measured values,the units are
deleted.
984 Floating point:Intel single precision real.First register
contains bits 15 …0of 32 bit number (bits 15 …0of
significand). Second register contains bits 31 …16 of 32 bit
number (exponent and bits 23 …16 of significand).
The status describes the condition of the associated measured
value.The content of the measured value is only valid if the
corresponding status has the value zero.If there is a status
value unequal zero,the status value and the corresponding
value in the measured value field must be taken into account in
a detailed failure diagnosis.The following chart explains the
possible faults.
Format of the PC/DCS value
Floating point of OPEN MOD-
BUS/TCP SPECIFICATION
8Modbus-TCP,VEGA ASCII protocol -VEGAMET 624/625,VEGASCAN 693,PLICSRADIO
Function as Modbus-TCP server
30768-EN-070730

Status Measured val-
ue
Meaning
0XXXX Valid measured value
<> 0 0 An error number is transmitted in the status
corresponding to the error codes Exx (e.g.29 =
E29 =Simulation).
<> 0XX0XX An error number is transmitted in the status and
in the measured value which corresponds to the
error codes Exx.Must be configured via DTM.
The switching conditions of the relay are transferred as bit
information.
The following equivalencies apply to the switching relays:
l0=Switching status Off
l1=Switching status On
The following equivalencies apply to the fail safe relay:
l0=Failure message Off,relay switching condition On
l1=Failure message Off,relay switching condition Off
The following chart shows the addressing of the temporary
memory via Modbus.
Register address in
Modicon
Temporary memory of VEGAMET/PLICSRA-
DIO (1bit)
10001 Fail safe relay
10002 Relay 1
10003 Relay 2
10004 Relay 3
As an alternative,register address 00001 is also available as
start address.
Filing of the relay values
Modbus-TCP,VEGA ASCII protocol -VEGAMET 624/625,VEGASCAN 693,PLICSRADIO 9
Function as Modbus-TCP server
30768-EN-070730

2VEGA ASCII protocol
2.1Measured value enquiry via ASCII protocol
With the VEGA ASCII protocol you have the ability to enquire
PC/DCS values via the Ethernet or RS232 interface.By using
ASCII characters,a measured value enquiry is possible with
easy terminal programs such as HyperTerminal.
The PC/DCS values are retrieved by special commands.It is
possible to get the measured value in different resolutions,
with/without unit or with current date/time.
The activation of the VEGA ASCII protocol is carried out by
means of the instrument DTM under "Device settings -RS232
interface".For the VEGA ASCII protocol the following interface
parameters are set per default:
lCoding system:8Bits,ASCII
lBaud rate:9600 Bits/sec
lData bits:8
lParity:none
lStop bits:1
For direct connection between signal conditioning instrument
and PC or DCS,the RS232 modem connection cable and an
additionally connected interlink cable from the scope of
delivery will be required.If connection is provided via modem,
only the attached RS232 modem connection cable is used.
You will find further information in chapter "Connection".
The VEGA ASCII protocol is handled via the TCP/IP -Port 503.
When using the terminal program HyperTerminal,the following
settings are required:
lIP addr.of the signal conditioning instrument:
192.168.200.200 (default setting)
lTCP/IP Port:503
lConnection:TCP/IP
Access via RS232
Access via Ethernet
10 Modbus-TCP,VEGA ASCII protocol -VEGAMET 624/625,VEGASCAN 693,PLICSRADIO
VEGA ASCII protocol
30768-EN-070730

Fig.1:Connection via HyperTerminal
The setting of "telnet:\\192.168.200.200:503"in the address
field of the Internet Explorers starts the terminal program
HyperTerminal automatically.Max.four simultaneous con-
nections are possible.
2.2Overview of the commands and options
The following ASCII signs are interpreted as commands:
Command Description
Version Enquiry of the protocol version
help Indication of the command formats
clearstore Settings of the option Store will be deleted in the EEPROM
memory
%Measured value enquiry with three places in front of the
decimal point and one place after the decimal point without
unit
&Measured value enquiry with six places after the decimal point
and without unit
?Measured value enquiry with six positions after the decimal
point and with unit
Commands
Modbus-TCP,VEGA ASCII protocol -VEGAMET 624/625,VEGASCAN 693,PLICSRADIO 11
VEGA ASCII protocol
30768-EN-070730

Command Description
$Measured value enquiry with 11 places as floating point and
with unit
Note:
With the switching inputs of PLICSRADIO
®
C62 (measure-
ment loops 4…6)the value 0(switch open)and 100 (switch
closed)are transmitted as measured values,the units are
deleted.
The above commands of the measured value enquiry can be
also combined with the following options:
Option Description
TIME The current date/time is added to the answer
REPEAT xThe measured value is sent automatically by the signal
conditioning instrument every x seconds
STORE The enquiry is saved up to the STORE option and executed
after a restart (only available with RS232 interface)
SUM Acheck sum is transmitted for each line which is sent
Information:
For commands and options no difference is made between
small and capital letters.Each character string is terminated
with Carriage Return CR =CHR (13). The individual
commands and options are described below more in detail.
2.3Version enquiry with command VERSION
With the command VERSION,the current protocol version can
be determined.
Example
lEnquiry:version
lAnswer:VEGA ASCII Version 1.00
2.4Help with command HELP
With the command HELP,a short information can be retrieved.
Options
12 Modbus-TCP,VEGA ASCII protocol -VEGAMET 624/625,VEGASCAN 693,PLICSRADIO
VEGA ASCII protocol
30768-EN-070730

2.5Delete the settings with the command
CLEARSTORE
With the command CLEARSTORE,the settings of the option
STORE are deleted in the EEPROM and the automatic
repetition of the measured values is stopped.
2.6Measured value enquiry with command %
2.6.1%individual enquiry
As answer on the individual enquiry,the PC/DCS value stated
in the enquiry is delivered.The measured value is transmitted
with three positions in front of the decimal point and one
position after the decimal point without unit.
Number of bytes Sign
Identifier 1%
Begin 1…3 001 …030 or 1…30
End identification 1CR
lIdentifier:"%" (1character)
lStart:No.of the requested PC/DCS output (1…3signs)
lEnd identification:Carriage Return CR (1sign)
Total length of the telegram:3…5signs
Number of bytes Sign
T11=
DCS no.3 001 …030
T21 #
Value 5…6-067.3
T31%
End identification 1CR
lT1:"=" (1sign)
lDCS no.: No.of the PC/DCS output as 3-digit decimal
number
lT2:"#"(1character)
lValue:Numerical value of the PC/DCS output or with
interferred measured value the text "FAULT"
Formatting of the value:
Enquiry of the control system
Answer from the signal con-
ditioning instrument
Modbus-TCP,VEGA ASCII protocol -VEGAMET 624/625,VEGASCAN 693,PLICSRADIO 13
VEGA ASCII protocol
30768-EN-070730

Sign Meaning
1"-":Minus with negative numbers
" ":Space with positive numbers
2…4 3-digit number
5".":Decimal point
6 1-digit number (after the decimal point)
lT3:"%" (1character)
lEnd identification:Carriage Return CR (1sign)
Total length of the telegram:12 …13 signs
Note:
The %sign is a separator,not the unit %
Enquiry:
%001
Answer:
=001# 067.3%
2.6.1%Block enquiry
As answer on the block enquiry,all PC/DCS values assigned
in the instrument are delivered.The measured value is
transmitted with three positions in front of the decimal point
and one position after the decimal point without unit.
Number of bytes Sign
Identifier 1%
End identification 1CR
lIdentifier:"%" (1character)
lEnd identification:Carriage Return CR (1sign)
Total length of the telegram:2characters
"N"-times repetition of the following telegram
(N=total number of assigned PC/DCS outputs)
Number of bytes Sign
T11=
DCS no.3 001 …030
T21 #
Value 5…6-067.3
Example:
Enquiry of the control system
Answer from the signal con-
ditioning instrument
14 Modbus-TCP,VEGA ASCII protocol -VEGAMET 624/625,VEGASCAN 693,PLICSRADIO
VEGA ASCII protocol
30768-EN-070730

Number of bytes Sign
T31%
End identification 1CR
lT1:"=" (1sign)
lDCS no.: No.of the PC/DCS output as 3-digit decimal
number
lT2:"#"(1character)
lValue:Numerical value of the PC/DCS output or in case of
faulty measured value the text "FAULT"
Formatting of the value:
Sign Meaning
1"-":Minus with negative numbers
" ":Space with positive numbers
2…4 3-digit number
5".":Decimal point
6 1-digit number (after the decimal point)
lT3:"%" (1character)
lEnd identification:Carriage Return CR (1sign)
Total length of the telegram:N*12 …13 signs
Note:
The %sign is a separator,not the unit %
Enquiry:
%
Answer:
=001# 067.3%
=002# 824.6%
=003#-067.3%
=004# 824.6%
2.6.1%Block enquiry with length
As answer to the range enquiry,the range stated in the enquiry
with PC/DCS values is delivered.The measured value is
transmitted with three decimal places in front of the decimal
point and one decimal place after the decimal point without
unit.
Example:
Modbus-TCP,VEGA ASCII protocol -VEGAMET 624/625,VEGASCAN 693,PLICSRADIO 15
VEGA ASCII protocol
30768-EN-070730

Number of bytes Sign
Identifier 1%
Begin 1…3 001 …030 or 1…30
Separator 1Lor I
Quantity 1…3 001 …030 or 1…30
End identification 1CR
lIdentifier:"%" (1character)
lStart:No.of the requested PC/DCS output (1…3signs)
lSeparator:"L"or "I"(1sign)
lQuantity:Number of requested PC/DCS outputs (1…3
signs)
lEnd identification:Carriage Return CR (1sign)
Total length of the telegram:5…9signs
"Quantity"-times repetition of the following telegram
Number of bytes Sign
T11=
DCS no.3 001 …030
T21 #
Value 5…6-067.3
T31%
End identification 1CR
lT1:"=" (1sign)
lDCS no.: No.of the PC/DCS output as 3-digit decimal
number
lT2:"#"(1character)
lValue:Numerical value of the PC/DCS output or in case of
faulty measured value the text "FAULT"
Formatting of the value:
Sign Meaning
1"-":Minus with negative numbers
" ":Space with positive numbers
2…4 3-digit number
5".":Decimal point
6 1-digit number (after the decimal point)
Enquiry of the control system
Answer from the signal con-
ditioning instrument
16 Modbus-TCP,VEGA ASCII protocol -VEGAMET 624/625,VEGASCAN 693,PLICSRADIO
VEGA ASCII protocol
30768-EN-070730

lT3:"%" (1character)
lEnd identification:Carriage Return CR (1sign)
Total length of the telegram:"Number"*12 …13 signs
Note:
The %sign is a separator,not the unit %
Enquiry:
%001L003
Answer:
=001# 067.3%
=002# 824.6%
=003#-067.3%
2.6.1%Block enquiry with range
As answer to the range enquiry,the range stated in the enquiry
with PC/DCS values is delivered.The measured value is
transmitted with three decimal places in front of the decimal
point and one decimal place after the decimal point without
unit.
Number of bytes Sign
Identifier 1%
Begin 1…3 001 …030 or 1…30
Separator 1-
End 1…3 001 …030 or 1…30
End identification 1CR
lIdentifier:"%" (1character)
lStart:Start no.of the requested PC/DCS output (1…3
signs)
lSeparator:"-"(1sign)
lEnd:End no.of the requested PC/DCS output (1…3
signs)
lEnd identification:Carriage Return CR (1sign)
Total length of the telegram:5…9characters
(End-Start+1)-times repetition of the following telegram
Number of bytes Sign
T11=
DCS no.3 001 …030
Example:
Enquiry of the control system
Answer from the signal con-
ditioning instrument
Modbus-TCP,VEGA ASCII protocol -VEGAMET 624/625,VEGASCAN 693,PLICSRADIO 17
VEGA ASCII protocol
30768-EN-070730

Number of bytes Sign
T21 #
Value 5…6-067.3
T31%
End identification 1CR
lT1:"=" (1sign)
lDCS no.: No.of the PC/DCS output as 3-digit decimal
number
lT2:"#"(1character)
lValue:Numerical value of the PC/DCS output or in case of
faulty measured value the text "FAULT"
Formatting of the value:
Sign Meaning
1"-":Minus with negative numbers
" ":Space with positive numbers
2…4 3-digit number
5".":Decimal point
6 1-digit number (after the decimal point)
lT3:"%" (1character)
lEnd identification:Carriage Return CR (1sign)
Total length of the telegram: (End-Start+1)*12 …13
Note:
The %sign is a separator,not the unit %
Enquiry:
%002-004
Answer:
=002# 067.3%
=003# 824.6%
=004#-067.3%
2.7Measured value enquiry with command &
2.7.1&Single enquiry
As answer to the individual enquiry,the PC/DCS value stated
in the enquiry is delivered.The measured value is transmitted
Example:
18 Modbus-TCP,VEGA ASCII protocol -VEGAMET 624/625,VEGASCAN 693,PLICSRADIO
VEGA ASCII protocol
30768-EN-070730

with six decimal places without decimal point and unit.
Number of bytes Sign
Identifier 1&
Begin 1…3 001 …030 or 1…30
End identification 1CR
lIdentifier:"&"(1sign)
lStart:No.of the requested PC/DCS output (1…3
characters)
lEnd identification:Carriage Return CR (1sign)
Total length of the telegram:3…5characters
Number of bytes Sign
T11=
DCS no.3 001 …030
T21 #
Value 7-000673
T31%
End identification 1CR
lT1:"=" (1sign)
lDCS no.: No.of the PC/DCS output as 3-digit decimal
number
lT2:"#"(1character)
lValue:Numerical value of the PC/DCS output or in case of
faulty measured value the text "FAULT"
Formatting of the value:
Sign Meaning
1"-":Minus with negative numbers
" ":Space with positive numbers
2…7 6-digit number after the decimal point
lT3:"%" (1character)
lEnd identification:Carriage Return CR (1sign)
Total length of the telegram:14 characters
Enquiry of the control system
Answer from the signal con-
ditioning instrument
Modbus-TCP,VEGA ASCII protocol -VEGAMET 624/625,VEGASCAN 693,PLICSRADIO 19
VEGA ASCII protocol
30768-EN-070730

Note:
The %sign is a separator,not the unit %
Enquiry:
&001
Answer:
=001#-000673%
2.7.1&Block enquiry
As answer to the block enquiry,all assigned PC/DCS values in
the instrument are delivered.The measured value is trans-
mitted with six decimal places without decimal point and unit.
Number of bytes Sign
Identifier 1&
End identification 1CR
lIdentifier:"&"(1sign)
lEnd identification:Carriage Return CR (1sign)
Total length of the telegram:2characters
"N"-times repetition of the following telegram
(N=total number of assigned PC/DCS outputs)
Number of bytes Sign
T11=
DCS no.3 001 …030
T21 #
Value 7-000673
T31%
End identification 1CR
lT1:"=" (1sign)
lDCS no.: No.of the PC/DCS output as 3-digit decimal
number
lT2:"#"(1character)
lValue:Numerical value of the PC/DCS output or in case of
faulty measured value the text "FAULT"
Formatting of the value:
Example:
Enquiry of the control system
Answer from the signal con-
ditioning instrument
20 Modbus-TCP,VEGA ASCII protocol -VEGAMET 624/625,VEGASCAN 693,PLICSRADIO
VEGA ASCII protocol
30768-EN-070730