Rockwell Automation 1756-ENET/B ControlLogix Ethernet Communication Interface Module User Manual - Manual (Page 20)

Publication 1756-UM051B-EN-P - November 2000
1-2 About the 1756-ENET/B Module
Hardware/Software
Compatibility The 1756-ENET/B module is compatible with the following firmware
versions and software releases. Contact Rockwell Automation if you
need software or firmware upgrades to use this equipment.:
What the Module Does The 1756-ENET/B module performs two primary tasks:
1. Control of real time I/O data (also known as “implicit messaging”)
in conjunction with a Logix 5550 controller. The Ethernet module
may serve as an adaptor, interfacing the I/O modules to the
network, or as a scanner, sending and receiving data between the
controller and the network.
2. Support of messaging data for configuration and programming
information, operator interfaces, etc. (also known as “explicit
messaging.”).
Support of Rack Optimized
and Direct Connections The 1756-ENET/B module supports both Rack Optimized and Direct
Connections. A direct connection is a real-time data transfer link
between the controller and the device that occupies the slot that the
configuration data references. A rack optimized connection is a
grouping of data from more than one I/O module into a single block
of data sent over a single connection.
Product Firmware Version/
Software Release
1756-ENET/B module 2.01 or higher
Logix 5550 Controller 6.10 or higher
RSLogix 5000 software 7.0 or higher
RSLinx software 2.2 or higher
I/O I/O
L
5
5
5
0
E
N
E
T
Scanner
Adaptor
EtherNet Network
E
N
E
T
I/O I/O
E
N
E
T
Adaptor
I/O I/O
E
N
E
T
Adaptor