Ge 66) – ProSoft Technology MVI69-EGD User Manual
Page 66
MVI69-EGD ♦ CompactLogix or MicroLogix Platform
Reference
GE Ethernet Global Data Communication Module
Page 66 of 96
ProSoft Technology, Inc.
November 3, 2008
Capabilities PDUs
PDU Type = 9
Capabilities Request
The capabilities request PDU command permits an application program to
request the supported capabilities of the EGD implementation on the destination
node. A capabilities request sent from a requesting node must be followed by a
capabilities response message from the responding node.
Packet
Info
Description Data
Source Port:
7937 (0x 1F01)
Destination Port:
7937 (0x 1F01)
Length:
xx bytes (0x 00 XX)
Checksum:
xxxxx (0x XX XX)
EGD's PDU Field:
Offset
Bytes
Hex code
PDU Type:
0
1
0x 09
Message Flag:
1
1
0x HH
Request ID:
2
2
0x HH HH
PVN1:
4
1
0x 01
Reserved:
5
1
0x HH
UDP
EGD:
Message Length:
6
2
0x HH HH
PDU Type = 10
Capabilities Response.
The capabilities response command PDU is sent in response a capabilities
request. This message returns the functional capabilities and limits of the
supported EGD implementation on the responding controller.
Packet
Info
Description Data
Source Port:
7937 (0x 1F01)
Destination Port:
7937 (0x 1F01)
Length:
xx bytes (0x 00 XX)
Checksum:
xxxxx (0x XX XX)
EGD's PDU Field:
Offset
Bytes
Hex code
PDU Type:
0
1
0x 0A
Message Flag:
1
1
0x HH
Request ID:
2
2
0x HH HH
PVN1:
4
1
0x 01
Status:
5
1
0x HH
Message Length:
6
2
0x HH HH
UDP
EGD:
Producer ID:
8
4
0x HH HH HH HH