Cirrus Logic CS485 Spécifications télécharger pdf (Page 14)

C E N T A U R U S P R I M E

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MUST match! If the SOCKET.CFG specifies a different IP address from the

GATEWAY.INI file, you will never receive anything from the Gateway!

For the BACnet/IP (Annex J) protocol, a couple other global parameters are

necessary. Internally the gateway maps devices in a very simple fashion: Devices 1

through 60 on trunk 1; Devices 61 through 120 on trunk 2, Devices 121 through 180

on trunk 3, and Devices 181 through 240 on trunk 4. But you might not want to use

those as your Device “Instance numbers”, if you have some other addressing scheme

(or a number of these gateways) on a system. The BACNET_OFFSET allows you to

have these devices show up as a different set of Instances rather than just 1 to 240.

The number that you specify is added to the internal device number. Hence, if your

offset is 5000, and you are interested in (local) device #84 (the fourth gizmo on trunk

#2), the BACnet system sees this device as Instance # 5084.

Also, if you have multiple gateways on one system, you will need to have each of them

be a different Network Number (set via the BACNET_NETWORK parameter in the

Gateway.ini file). This is so that there is no confusion between the devices on one

gateway and any others (they all could have local device numbers be the same; by

having different Network Numbers for each gateway, they become unique, as far as

the underlying BACnet protocol works).

C:\>type gateway.ini

// "BAUD0" is used for the HOST CHANNEL Baud Rate (the Modbus RTU

//Protocol) and Parity settings N=None, O=Odd, E=Even

BAUD0, 9600,N

// --------------------------------------------------------------------------

// Required for 4 ports: Set the baud rate (set to 0 if channel unused)

// Valid baud rates are: 1200 – older, VAV-1 devices

// 9600 – newer VAV devices (III, IV, V, etc.)

// 0 -- <means that nothing is on that trunk>

BAUD1, 1200

BAUD2, 9600

BAUD3, 9600

BAUD4, 0

// --------------------------------------------------------------------------

// “IP_ADDR” is used for the IP address of what you want this box to be.

// ( And it MUST match the SOCKET.CFG IP Address! )

IP_ADDR, 192.168.0.204

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Cirrus Logic CS485 Spécifications Page 14