ProSoft Technology MVI71-DFNT - Manual (Page 79)

MVI71-DFNT ♦ PLC 5 Reference
EtherNet/IP Client/Server Communication Module User Manual
ProSoft Technology, Inc. Page 79 of 175
February 3, 2011
When using PLC5 or SLC commands, access to the database is through
simulated "N" files. For example, to access database element 3012, use the file
address of N40:12. When using CIP Data Table Read or Write commands, use
the various data[ ] tag arrays described in the following table. For example, use
int_data[3012] to access database register 3012 as an integer value.
Data Type Tag Name Length of Each Element in
CIP message
Array Range for 4000
Element Database
BOOL BOOLData[ ] 1 0 to 63999
Bit Array BITAData[ ] 4 0 to 1999
SINT SINTData[ ] 1 0 to 7999
INT INT_Data[ ] 2 0 to 3999
DINT DINTData[ ] 4 0 to 1999
REAL REALData[ ] 4 0 to 1999
Before attempting to use the module on a network, verify that the DFNT module
is correctly configured and connected to the network. A network program such as
PING can be utilized to make certain the module can be seen on the network.
Use ProSoft Configuration Builder to verify correct operation, and to transfer
configuration files to and from the module.
The following table shows the supported commands when the module acts as a
slave (server):
Basic Command Set Functions
Command Function Definition Supported in Slave
0x00 N/A Protected Write X
0x01 N/A Unprotected Read X
0x02 N/A Protected Bit Write X
0x05 N/A Unprotected Bit Write X
0x08 N/A Unprotected Write X
PLC-5 Command Set Functions
Command Function Definition Supported in Slave
0x0F 0x00 Word Range Write (Binary Address) X
0x0F 0x01 Word Range Read (Binary Address) X
0x0F Typed Range Read (Binary Address) X
0x0F Typed Range Write (Binary Address) X
0x0F 0x26 Read-Modify-Write (Binary Address)
0x0F 0x00 Word Range Write (ASCII Address) X
0x0F 0x01 Word Range Read (ASCII Address) X
0x0F 0x26 Read-Modify-Write (ASCII Address)