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Sierra Raven EDGE Network Card User Manual

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Configuring Modbus/BSAP

Rev 3.0B Feb.08 65

Thedestinationportforthemodematthehostneedstomatch

thedeviceportinuseonallthemodemsattheremotesites.

Forexample,iftheremotemodem’sdeviceport(seebelow)is

“12345”,thentheModbushostmodem’sS53destinationport

shouldbesetto“12345”.

Setthedestinationport(S53)tomatchthedeviceportofthe

hostmodem(*DPORT).Makesurethe deviceportofthe

remotemodem(*DPORT)matchesthedestina tion portofthe

hostmodem(S53).

2. Configure IP addresses for the host.

IftheHostmodemhasastaticIPaddress,enteritintheDesti‐

nationAddressforS53.

Note: With a name instead of

IPs for the host modem, the

remote modems will query the

DNS server for the current IP

assigned to the host modem

before sending data back to the

host.

IfthemodematthehosthasadynamicIPandisusingIP

Manager,insteadofanIPaddressforS53,specifythenameof

thehostmodem(*MODEMNAME).Iftheremotemodemsare

usingadifferentDDNSthanthehostmodem,youwillneedto

specifythefullyqualified

domainname

(*MODEMNAME+*DOMAIN).

Note: Setting the Host modem IP address as the S53 Destination

Address provides a low level security. The modem will not forward

UDP traffic unless the source IP/port matches what is in S53.

However, if you set *AIP=1, the modem will forward UDP traffic from

any source IP address as long as it is accessing the modem on the

configured *DPORT.

3. Configure the default mode for start-up.

Eachmodemattheremotelocationswillneedtobeconfigured

tocommunicatewiththemodematthehost.InAceManager,

selectUDPinthesidemenu.

Figure 8-7: AceManager: UDP

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