Specify Plc-5 Messages - Allen-Bradley Logix5000 Reference Manual

Selecting the CIP Generic message type enables the Large Connection option on the Communication tab.
IMPORTANT
Use large CIP Generic connections when a message is greater than 480 bytes. (500 bytes is typical, but
note that there are headers at the front of the message.) Large CIP connections can be used for messages
up to 3980 bytes.
The Large Connection checkbox is enabled only when the Connected box is checked and CIP Generic is
selected as the message type on the Configuration tab (see
The Large Connection option is available only in RSLogix 5000 programming software, version 20 or later.
Select this command
PLC5 Typed Read
PLC5 Typed Write
PLC5 Word Range Read
PLC5 Word Range Write

Specify PLC-5 Messages

Use the PLC-5 message types to communicate with PLC-5 controllers.
If you want to
Read 16-bit integer, floating-point, or string type data and maintain data integrity.
for PLC5 Typed Read and Typed Write messages on page
Write 16-bit integer, floating-point, or string type data and maintain data integrity.
for PLC5 Typed Read and Typed Write messages on page 180
Read a contiguous range of 16-bit words in PLC-5 memory regardless of data type.
This command starts at the address specified as the Source Element and reads sequentially the
number of 16-bit words requested.
The data from the Source Element is stored, starting at the address specified as the Destination
Tag.
Write a contiguous range of 16-bit words from Logix5000 memory regardless of data type to PLC-
5 memory.
This command starts at the address specified as the Source Tag and reads sequentially the
number of 16-bit words requested.
The data from the Source Tag is stored, starting at the address specified as the Destination
Element in the PLC-5 processor.
Rockwell Automation Publication 1756-RM003N-EN-P - October 2011
Input/Output Instructions (MSG, GSV, SSV, IOT)
Figure 3 on page 172).
180.
Chapter 4
See Data types
See Data types
179