Configuring the Bridge
27
3.1.3Files Generated orModified bytheBridge
When the bridge is configured using the CFGUTIL program,itwritesASCII text
filesthatrecordthe bridge’scurrentconfiguration and networkmapping.The files
areretainedinthe bridge and referenced forconfiguration on subsequentstartups.
Table 16 FilesGenerated orModified bytheBridge
FilePurpose
RTE.CFGContainsthebridge’sMB+and TCPmapping
WATTCP.CFGContainsthebridge’sIPsetup and networkparameters
RTE.OLD ContainstheRTE.CFGversion priortothe lastwrite
WATTCP.OLD ContainstheWATTCP.CFGversionpriortothe lastwrite
Thesefiles can be uploaded and stored in a host. They can be downloaded to
restoreabridge’sconfiguration.Sections5.2 and 5.3 describe these procedures.
NotethatRTE.CFGmustberenamed toRTE.TXTpriorto downloading.
Figure13 SampleFileContents:RTE.CFG(orRTE.TXT)and WATTCP.CFG
Sample:RTE.CFGorRTE.TXTSample:WATTCP.CFG
mbp_1=1.0.0.0.0
mbp_2=2.0.0.0.0
mbp_3=1.0.0.0.0
mbp_4=2.0.0.0.0
...
mbp_249=3.2.57.0.0
tcp_1=205.167.7.1
tcp_2=205.167.7.2
tcp_3=205.167.7.3
tcp_4=205.167.7.4
...
tcp_255=205.167.7.255
my_ip=205.167.7.65
ip_address=205.167.7.65
netmask=255.255.255.0
nameserver=205.167.7.2
gateway=205.167.7.2
domainslist=mydomain.com
idle_timeout=300
3.1.4TheSoftwareStartup Sequence
On power--upthe bridge software performsthe following sequence.
HCONFIG.SYS loadsthe ModbusPlusdriverMBPHOST.SYS.
HAUTOEXEC.BATcallsGATELOOP.BAT.
HGATELOOP.BATexecutesBDRESET.EXE,initializingthe ModbusPlus card.
HGATELOOP.BATexecutesthe EthernetdriverprogramPNPPD.COM.
HGATELOOP.BATexecutesthe bridge application programSGATE.EXE.