Class ID
F6 (hex), 246 (decimal)
Instance IDs
The Ethernet Link object presents the following instance values (for an BMECRA31210):
0: class
1: port (ETH1)
2: port (ETH2)
3: port (ETH3)
4: port (Internal backplane port 255)
Attributes
The Ethernet Link object presents the following attributes:
Instance ID = 0 (class attributes):
Attribute ID |
Description |
GET |
SET |
|---|---|---|---|
01 |
Revision |
X |
— |
02 |
Max Instance |
X |
— |
03 |
Number of Instances |
X |
— |
X = supported — = not supported |
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Instance ID = 1 (instance attributes):
Attribute ID |
Description |
Type |
GET |
SET |
Value |
|
|---|---|---|---|---|---|---|
hex |
dec |
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01 |
01 |
Interface speed |
UDINT |
X |
— |
Valid values include: 0, 10000000, 100000000 |
02 |
02 |
Interface flags |
DWORD |
X |
— |
Bit 0: link status 0 = Inactive 1 = Active |
Bit 1: duplex mode 0 = half duplex 1 = full duplex |
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Bits 2—4: negotiation status 3 = successfully negotiated speed and duplex 4 = forced speed and link |
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Bit 5: manual setting requires reset 0 = automatic 1 = device need reset |
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Bit 6: local hardware detected error 0 = no event 1 = event detected |
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03 |
03 |
Physical Address |
ARRAY of 6 USINT |
X |
— |
module MAC address |
04 |
04 |
Interface Counters |
STRUCT of |
X |
— |
|
In bytes |
UDINT |
bytes received on the interface |
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In Ucast packets |
UDINT |
unicast packets received on the interface |
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In NUcast packets |
UDINT |
non-unicast packets received on the interface |
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In discards |
UDINT |
inbound packets received on the interface, but discarded |
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In detected errors |
UDINT |
inbound packets with detected errors (does not include in discards) |
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In Unknown Protocals |
UDINT |
inbound packets with unknown protocol |
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Out bytes |
UDINT |
bytes sent on the interface |
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Out Ucast packets |
UDINT |
unicast packets sent on the interface |
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Out NUcast packets |
UDINT |
non-unicast packets sent on the interface |
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Out discards |
UDINT |
outbound packets discarded |
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Out detected errors |
UDINT |
outbound packets with detected errors |
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05 |
05 |
Media Counters |
STRUCT of |
X |
— |
|
Detected alignment errors |
UDINT |
frames that are not an integral number of bytes in length |
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Detected FCS errors |
UDINT |
incorrect CRC: frames received do not pass the FCS check |
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Single collisions |
UDINT |
successfully transmitted frames that experienced exactly 1 collision |
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Multiple collisions |
UDINT |
successfully transmitted frames that experienced more than 1 collision |
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SQE test errors |
UDINT |
number of times the SQE test error is generated |
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Deferred transmissions |
UDINT |
frames for which first transmission attempt is delayed because the medium is busy |
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Late collisions |
UDINT |
number of times a collision is detected later than 512-bit times into the transmission of a packet |
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Excessive collisions |
UDINT |
frames that do not transmit due to excessive collisions |
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MAC transmit detected errors |
UDINT |
frames that do not transmit due to a detected internal MAC sublayer transmit detected error |
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Frame too long |
UDINT |
frames received that exceed the maximum permitted frame size |
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05 |
05 |
Detected MAC receive errors |
UDINT |
X |
— |
frames not received on an interface due to a detected internal MAC sublayer detected receive error |
Carrier sense detected errors |
UDINT |
times that the carrier sense condition was lost or not asserted when attempting to transmit a frame |
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06 |
06 |
Interface Control |
STRUCT of |
X |
X |
API of the connection |
Control bits |
WORD |
Bit 0: Auto-negotiation 0 = disabled 1 = enabled Note: When auto-negotiation is enabled, 0x0C (object state conflict) is returned when attempting to set either:
|
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Bit 1: forced duplex mode (if auto-negotiation bit = 0) 0 = half duplex 1 = full duplex |
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Forced interface speed |
UINT |
Valid values include: 10000000, 100000000 Note: Attempting to set any other value returns the detected error 0x09 (invalid attribute value) |
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10 |
16 |
Interface label |
SHORT_STRING |
X |
— |
A fixed textual string identifying the interface that should include ‘internal’ for internal interfaces. Maximum number of characters is 64. |
X = supported — = not supported |
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Services
The Ethernet Link object supports the following services:
Service ID |
Description |
Class |
Instance |
|
|---|---|---|---|---|
hex |
dec |
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01 |
01 |
Get_Attributes_All |
X |
X |
10 |
16 |
Set_Attribute_Single |
— |
X |
0E |
14 |
Get_Attribute_Single |
X |
X |
4C |
76 |
Get_and_Clear |
— |
X |
X = supported — = not supported |
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