ELAP MEM440-Bus, Инструкция по эксплуатации

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MEM-BUS
EtherNet/IP™ ENCODER
Instruction Manual
ENIP_Manual_ENG 17/07/2018
24
Attribute 1, Interface Status
This attribute is a bitmap, indicating the status of the TCP/IP interface. Now, only bits from 0 to 3 are used,
in order to show its configuration status:

0

Attribute 5 has not been configured.

1

Attribute 5 contains configuration obtained from BOOTP/DHCP or from device’s internal
memory.

2

Attribute 5 contains configuration obtained from hardware settings (rotary switches).

3, … 15

Reserved for future use.
Attribute 2, Configuration Capability
This attribute is a bitmap, indicating the device’s support for optional network configuration capability.
This attribute value is 00B5H for ELAP MEM-BUS encoder, that is:

Bit0 = 1, the encoder is capable of obtaining its network configuration (attribute 5) via BOOTP.

Bit2 = 1, the encoder is capable of obtaining its network configuration (attribute 5) via DHCP.

Bit4 = 1, the interface configuration attribute (attribute 5) is settable.

Bit5 = 1, IP address is hardware configurable.

Bit7 = 1, the encoder is capable to detect IP address conflicts (ACD).
Attribute 3, Interface Control
This attribute is a bitmap and it is used to control network configuration options.
The following values are accepted:

0

In order to assign a static IP address, through the rotary switches (see section 2.5)

1

In order to assign an IP address via BOOTP

2

In order to assign an IP address via DHCP
Attribute 4, Path to Physical Link Object
This attribute identifies the object associated with the underlying physical communications interface. In this
case, it is the instance 1 of the object F6H:

20H

The following byte identifies a class

F6H

Class code of the Ethernet Link Object

24H

The following byte identifies an instance

01H

Instance number 1.
Attribute 5, TCP/IP Interface Configuration
This attribute contains the configuration parameters required for a device to operate as a TCP/IP node.
In particular:

IP Address.

Network Mask: It is used when the IP network has been partitioned into subnets. The mask is used
to determine whether an IP address is located on another subnet.

Gateway Address: When a destination IP address is on a different subnet, packets are forwarded to
the default gateway for routing to the destination subnet.

Name Server: IP address of the primary name server, which is used to resolve host names.