VLT
®
AutomationDrive EtherNet/IP
MG.90.Jx.02 ver. 5
th
September 2007 – VLT is a registered Danfoss trademark
21
N.B.:
Use of 32-bit process data.
For configuration of 2-word (32-bit) parameter read/write, use 2 consecutive arrays in par.
12-21 and 12-22, like [2]+[3], [4]+[5], [6]+[7] etc.
Read/write of 2-word values in arrays like: [3]+[4], [5]+[6], [7]+[8] is not possible.
EtherNet/IP connections
The MCA121 option supports the following CIP connections:
Class 1 connection
I/O connection using TCP transport.
Maximum one Class 1 connection is supported. Several listen only connection can be established if
multicast is selected as Transport type.
This type of connection is used for cyclic I/O and Change-Of-State connections. The connection is
established with a
Forward Open
command, containing theses information:
Transport Type:
Specified for both directions: Originator-to-Target / Target-to-Originator.
-
Point to Point
-
Multicast
(Target-to-Originator only)
Data Size:
Specified (in bytes) for both directions: Originator -> Target / Target -> Originator.
The data-size depends on the assembly-instance chosen in:
Destination.
Instances
(decimal)
:
Originator ->
Target
Target ->
Originator
Data size:
20, 21, 100
70, 71, 150
4 bytes
101 151 8
bytes
103 153 20
bytes
Packet Rate:
Specified (in milliseconds) for both directions: Originator -> Target / Target -> Originator.
Minimum packet rate supported:
1 ms
Production inhibit timeout:
Specifies (in milliseconds) the timeout-time for both directions.
Trigger:
Selects the transport trigger type:
-
Cyclic (Data are transmitted cyclically as polled I/O).
-
Change Of State (Data are transmitted on Change of State only. COS-filters are set-up in par.
12-38
COS Filters
)
Connection points:
Specified for both directions: Originator -> Target / Target -> Originator.
Profile
(par. 8-10)
Direction Connection
points
(decimal)
Originator -> Target
20, 21
ODVA
Target -> Originator
70, 71
Originator -> Target
100, 101, 103
FC
Target -> Originator
150, 151, 153
