YOKOGAWA ASGW, User Manual

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5-3
IM 12Y04D01-01
4.4. Setting
This file consists of text characters. Editing can be done with “Notepad” software, but “MS-Excel” software
is recommended. The edited file should be saved with “CSV” as an extension.
Each line has meaning in the map file. A line beginning with character # is interpreted as a meaningful line.
And a comment line does not begin with character “# “.
#SLAVE, n
This n is the Slave ID when DCS accesses to ASGW with Modbus interface.
#RETRY, m
This m is the number of retry times when a write error occurs.
#TOUT, t
This t is time-out value of characters in the communication between DCS and Modbus RTU. Adjust the
value depending on communication speed. Unit is ms [millisecond] and range is 10 to 5000.
Definition of GC1000MkII/ASIU
This is the setting of analyzer ID. The number of analyzer units that is connected to one ASGW is 31 sets
Every analyzer should be defined by unique StnID number. This StnID is key data on Modbus interface.
#STN Key word
StnID ID number of analyzer (1-254)
StnType Type of analyzer “GC1000” or “ASIU”
IP_Address IP address of GC1000MkII/ASIU
Example “#STN, GC1000,3,192.168.0.1”
Definition of Mapping
This is setting of Modbus address
Refer to the Modbus address tables (Table 3.3-7) for available mapping conditions.
#MAP Key word
StnID ID number of analyzer (defined in #STN)
ASGW_Address Modbus address of ASGW
Target_Address Modbus
address of target analyzer
Example: “#MAP,3,11001,10001”
The order of line is not restricted, and blank line is ignored.